The aimed of current research to development of the simple, rapid and sensitive Differential spectrophotometric method for the estimation of Verapamil in tablet dosage form. In this method two medium was use acid and alkaline and the difference spectrum was calculated. 0.1N HCL and 0.1N NaOH was used in this differential method. The λmax 278, Beers law limits 5-25µg/ml, regression equation Y= 0.024x-0.009, slope 0.024, intercept 0.09, correlation coefficient (r2) 0.998, %RSD <1.5, % Recovery (Tablet) 100.46% was shows the good efficacy and results. This method future scope in quality control of the verapamil in simple, precise and economically and it recommended for the routine drug quality analysis investigation
Differential spectrophotometric method for estimation and validation of Verap...roshan telrandhe
The aimed of current research to development of the simple, rapid and sensitive Differential spectrophotometric method for the estimation of Verapamil in tablet dosage form. In this method two medium was use acid and alkaline and the difference spectrum was calculated. 0.1N HCL and 0.1N NaOH was used in this differential method. The λmax 278, beeers law limits 525µg/ml, regression equation Y= 0.024x-0.009, slope 0.024, intercept 0.09, correlation coefficient (r2) 0.998, %RSD <1.5, % Recovery (Tablet) 100.46% was shows the good efficacy and results. This method future scope in quality control of the verapamine in simple, precise and economically and it recommended for the routine drug quality analysis investigation.
Multiple Method Development and Validation for Simultaneous Estimation of Chl...ijtsrd
A simple, precise and accurate multiple analytical method has been developed for the simultaneous estimation of Chlorzoxazone and Nimesulide in bulk and tablet formulations by reversed-phase liquid chromatographic and UV-Visible spectrophotometric techniques. The chromatographic separation was achieved on C18 analytical column. A mixture of Methanol 0.1 Ortho-phosphoric acid 75 25 was used as mobile phase, at a flow rate of 1mL min and detection wavelength at 295 nm. The retention time of Chlorzoxazone and Nimesulide was found to be 4.69 and 5.45 min respectively. The linear dynamic ranges for HPLC were from 2-10 µg mL and for simultaneous equation method, derivative spectroscopy, Q-ratio Absorbance method, Dual wavelength it was 10-30 µg mL for both Chlorzoxazone and Nimesulide. The percentage recovery obtained for Chlorzoxazone and Nimesulide were 100.93 and 102.19 respectively for RP-HPLC, 9.7 and 100.1 for simultaneous equation method of CZ and NIM respectively, 99.97 and 99.78 for derivative spectroscopy of CZ and NIM respectively, 101.37 and 99.48 for Q-ratio Absorbance method of CZ and NIM respectively, 100.13 and 99.96 for dual wavelength method of CZ and NIM respectively. The validation of the proposed methods were carried out for linearity, accuracy, precision, limit of detection, limit of quantitation and robustness. The developed method can be used for routine quality control analysis of titled drugs in combination in tablet formulation. Swetha Yarramsetti | A. Elphine Prabahar | Rama Rao Nadendla "Multiple Method Development and Validation for Simultaneous Estimation of Chlorzoxazone and Nimesulide in Bulk and Pharmaceutical Dosage Form" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-2 , February 2019, URL: https://www.ijtsrd.com/papers/ijtsrd21503.pdf
Paper URL: https://www.ijtsrd.com/pharmacy/analytical-chemistry/21503/multiple-method-development-and-validation-for--simultaneous-estimation-of-chlorzoxazone-and--nimesulide-in-bulk-and-pharmaceutical-dosage-form/swetha-yarramsetti
Stability indicating method development and validation for the simultaneous e...pharmaindexing
Stability indicating method development and validation for the simultaneous estimation of rabeprazole sodium and ketorolac tromethamine in bulk and synthetic mixture by RP-HPLC
Differential spectrophotometric method for estimation and validation of Verap...roshan telrandhe
The aimed of current research to development of the simple, rapid and sensitive Differential spectrophotometric method for the estimation of Verapamil in tablet dosage form. In this method two medium was use acid and alkaline and the difference spectrum was calculated. 0.1N HCL and 0.1N NaOH was used in this differential method. The λmax 278, beeers law limits 525µg/ml, regression equation Y= 0.024x-0.009, slope 0.024, intercept 0.09, correlation coefficient (r2) 0.998, %RSD <1.5, % Recovery (Tablet) 100.46% was shows the good efficacy and results. This method future scope in quality control of the verapamine in simple, precise and economically and it recommended for the routine drug quality analysis investigation.
Multiple Method Development and Validation for Simultaneous Estimation of Chl...ijtsrd
A simple, precise and accurate multiple analytical method has been developed for the simultaneous estimation of Chlorzoxazone and Nimesulide in bulk and tablet formulations by reversed-phase liquid chromatographic and UV-Visible spectrophotometric techniques. The chromatographic separation was achieved on C18 analytical column. A mixture of Methanol 0.1 Ortho-phosphoric acid 75 25 was used as mobile phase, at a flow rate of 1mL min and detection wavelength at 295 nm. The retention time of Chlorzoxazone and Nimesulide was found to be 4.69 and 5.45 min respectively. The linear dynamic ranges for HPLC were from 2-10 µg mL and for simultaneous equation method, derivative spectroscopy, Q-ratio Absorbance method, Dual wavelength it was 10-30 µg mL for both Chlorzoxazone and Nimesulide. The percentage recovery obtained for Chlorzoxazone and Nimesulide were 100.93 and 102.19 respectively for RP-HPLC, 9.7 and 100.1 for simultaneous equation method of CZ and NIM respectively, 99.97 and 99.78 for derivative spectroscopy of CZ and NIM respectively, 101.37 and 99.48 for Q-ratio Absorbance method of CZ and NIM respectively, 100.13 and 99.96 for dual wavelength method of CZ and NIM respectively. The validation of the proposed methods were carried out for linearity, accuracy, precision, limit of detection, limit of quantitation and robustness. The developed method can be used for routine quality control analysis of titled drugs in combination in tablet formulation. Swetha Yarramsetti | A. Elphine Prabahar | Rama Rao Nadendla "Multiple Method Development and Validation for Simultaneous Estimation of Chlorzoxazone and Nimesulide in Bulk and Pharmaceutical Dosage Form" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-2 , February 2019, URL: https://www.ijtsrd.com/papers/ijtsrd21503.pdf
Paper URL: https://www.ijtsrd.com/pharmacy/analytical-chemistry/21503/multiple-method-development-and-validation-for--simultaneous-estimation-of-chlorzoxazone-and--nimesulide-in-bulk-and-pharmaceutical-dosage-form/swetha-yarramsetti
Stability indicating method development and validation for the simultaneous e...pharmaindexing
Stability indicating method development and validation for the simultaneous estimation of rabeprazole sodium and ketorolac tromethamine in bulk and synthetic mixture by RP-HPLC
Stability indicating method development and validation for the estimation of ...SriramNagarajan18
Stability indicating method development and validation for the estimation of Doxorubicin by using RP-HPLC method in a bulk and pharmaceutical dosage form
Development and Validation of the HPLC Method for the Analysis of Ametridio...iosrphr_editor
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
Stability indicating analytical method development and validation for estimat...SriramNagarajan18
Stability indicating analytical method development and validation for estimation of Sacubitril and Valsartan in bulk and pharmaceutical dosage form using RP-HPLC
An emerging way of estimation of Olmesartan medoxomil & Hydrochlorothiazide i...Priyanka Bose
An emerging way of estimation of Olmesartan medoxomil & Hydrochlorothiazide in Bulk & Combined tablet dosage form by Absorbance Correction Method using methanol as solvent system. It is cost effective, highly precised method for estimation.
Validated RP-HPLC Method for the Determination of Nelaribine in Bulk and Tabl...ijtsrd
A novel, simple and economic reverse phase high performance liquid chromatography (RP-HPLC) method has been developed for the estimation of Nelaribine in bulk and tablet dosage form with greater precision and accuracy. Separation was achieved on Cosmiscil C18 column (150X4.6mm i.d.,5-µm) in isocratic mode using Triflouro acetic acid PH-3.6 buffer and Acetonitrile in the ratio of 90:10(v/v) as mobile phase, pumped in to the column at flow rate of 1.0 mL min-1and the detection of eluent from the column was carried out using variable wavelength UV detector at 248 nm. The total run time was 15 min and the column was maintained at ambient temperature. The retention time of Nelaribine was 4.003 min. The standard curves were linear over the concentration range of 25-150 -µg/ml with R2 0.999 and the LOD and LOQ values for Nelaribine were 0.04 -µg/ml and 0.12 -µg/ml , respectively. The percentage recovery was found to be 101.76 “ 98.72 %, the % RSD was found to be 0.43. The percentage amount of a marketed tablet formulation of Nelaribine was found to be 101.2 %. The method was validated as per ICH guidelines. Validation studies demonstrated that the proposed RP-HPLC method is simple, specific, rapid, reliable and reproducible. Hence the proposed method can be applied for the routine quality control analysis of Nelaribine in bulk and tablet dosage forms. Mrs.P.D.Chaithanya Sudha | Prof.D.Gowri Sankar"Validated RP-HPLC Method for the Determination of Nelaribine in Bulk and Tablet Dosage Form" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-1 | Issue-4 , June 2017, URL: http://www.ijtsrd.com/papers/ijtsrd181.pdf http://www.ijtsrd.com/pharmacy/analytical-chemistry/181/validated-rp-hplc-method-for-the-determination-of-nelaribine-in-bulk-and-tablet-dosage-form/mrspdchaithanya-sudha
Method Development and Validation of Clopidogrel Bisulphate by Reverse Phase-...SriramNagarajan15
A new, simple sensitive, rapid, accurate and precise RP-HPLC method was developed for the estimation of Clopidogrel bisulphate in bulk drug and pharmaceutical formulation. Clopidogrel bisulphate was chromatographed on a reverse phase C18column (150 mm x 4.5 mm, i.d 5μm) in a mobile phase consisting of acetonitrile and phosphate buffer (pH: 3.0) in the ratio of 60:40 % v/v. The mobile phase was pumped at a flow rate of 1 ml/min with detection at 224 nm. The detector response was linear in the concentration of 50-150 μg /ml. The limit of detection and limit of quantitation was found to be 1.3 and 4.2 µg/ml, respectively. The intra and inter day variation was found to be less than 2%. The mean recovery of the drug from the solution was 99.79%. The proposed method is simple, fast, accurate, precise and reproducible hence, it can be applied for routine quality control analysis of Clopidogrel bisulphate in bulk drug and pharmaceutical formulation. Key words: Clopidogrel bisulphate, RP-HPLC, Validation, Accuracy, Precision.
Development and validation of new rp hplc method for analysis of capecitabine...IJSIT Editor
A new precise accurate and reliable validated method for the determination of Capecitabine has been
developed by using reverse phase high performance liquid chromatography in pharmaceutical dosage forms.
Spectrophotometric determination was carried out at an absorption maximum of 230nm by using methanol.
The linearity was over the concentration range of 20-120 μg/ml with correlation coefficient 0.999.
Chromatographic separation was carried out by using a mobile phase of methanol: Acetonitrile: water
(80:18:2 V/V) on Zodiac C18 column (250 mm X 4.6 mm, 5 μm) in an isocratic mode at a flow rate of 1.1
ml/min with UV detection at 230 nm. The developed methods were found to be precise and accurate for the
estimation of Capecitabine in pharmaceutical dosage forms and could be used for routine analysis.
RP-HPLC Assay Method Validation for the estimation of new Anti-retroviral dru...SriramNagarajan15
A Reverse phase HPLC method was developed for estimation of the Lamivudine in bulk and tablet formulation by using ODS column (250mm×4.6mm, 5µm) and Acetate buffer: acetonitrile (50:50) as mobile phase, at a flow rate of 1.5ml/min. The detection was carried at the 272nm the retention time of the Lamivudine is 1.850. The developed method was validated for the various parameters as per the ICH guidelines like accuracy precision, linearity and range, Robustnes. Linearity was obtained in the concentration range of 10µg/ml to 50µg/ml with correlation coefficient of 0.999. The accuracy of the method was assessed by recovery studies at three different concentration levels. The percentage recovery of Lamivudine was found to be in the range of 98% -102%. The method was found to be precise as indicated by the repeatability, inter-day, intra-day analysis, showing %RSD less than 2. Key words: RP-HPLC, Lamivudine, Pharmaceutical dosage form.
Development and validation of a stability-indicating HPLC method for the simultaneous determination of Losartan potassium, hydrochlorothiazide, and their degradationproducts
Differential spectrophotometric method for estimation and validation of Verap...roshan telrandhe
The aimed of current research to development of the simple, rapid and sensitive Differential spectrophotometric method for the estimation of Verapamil in tablet dosage form. In this method two medium was use acid and alkaline and the difference spectrum was calculated. 0.1N HCL and 0.1N NaOH was used in this differential method. The λmax 278, beeers law limits 525µg/ml, regression equation Y= 0.024x-0.009, slope 0.024, intercept 0.09, correlation coefficient (r2) 0.998, %RSD <1.5, % Recovery (Tablet) 100.46% was shows the good efficacy and results. This method future scope in quality control of the verapamine in simple, precise and economically and it recommended for the routine drug quality analysis investigation.
If revisions are requested, the authors need to address the reviewer's comments and make the necessary changes to the paper. The revised paper is then resubmitted to the journal or conference for another round of review or evaluation of the journalism research paper.
Stability indicating method development and validation for the estimation of ...SriramNagarajan18
Stability indicating method development and validation for the estimation of Doxorubicin by using RP-HPLC method in a bulk and pharmaceutical dosage form
Development and Validation of the HPLC Method for the Analysis of Ametridio...iosrphr_editor
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
Stability indicating analytical method development and validation for estimat...SriramNagarajan18
Stability indicating analytical method development and validation for estimation of Sacubitril and Valsartan in bulk and pharmaceutical dosage form using RP-HPLC
An emerging way of estimation of Olmesartan medoxomil & Hydrochlorothiazide i...Priyanka Bose
An emerging way of estimation of Olmesartan medoxomil & Hydrochlorothiazide in Bulk & Combined tablet dosage form by Absorbance Correction Method using methanol as solvent system. It is cost effective, highly precised method for estimation.
Validated RP-HPLC Method for the Determination of Nelaribine in Bulk and Tabl...ijtsrd
A novel, simple and economic reverse phase high performance liquid chromatography (RP-HPLC) method has been developed for the estimation of Nelaribine in bulk and tablet dosage form with greater precision and accuracy. Separation was achieved on Cosmiscil C18 column (150X4.6mm i.d.,5-µm) in isocratic mode using Triflouro acetic acid PH-3.6 buffer and Acetonitrile in the ratio of 90:10(v/v) as mobile phase, pumped in to the column at flow rate of 1.0 mL min-1and the detection of eluent from the column was carried out using variable wavelength UV detector at 248 nm. The total run time was 15 min and the column was maintained at ambient temperature. The retention time of Nelaribine was 4.003 min. The standard curves were linear over the concentration range of 25-150 -µg/ml with R2 0.999 and the LOD and LOQ values for Nelaribine were 0.04 -µg/ml and 0.12 -µg/ml , respectively. The percentage recovery was found to be 101.76 “ 98.72 %, the % RSD was found to be 0.43. The percentage amount of a marketed tablet formulation of Nelaribine was found to be 101.2 %. The method was validated as per ICH guidelines. Validation studies demonstrated that the proposed RP-HPLC method is simple, specific, rapid, reliable and reproducible. Hence the proposed method can be applied for the routine quality control analysis of Nelaribine in bulk and tablet dosage forms. Mrs.P.D.Chaithanya Sudha | Prof.D.Gowri Sankar"Validated RP-HPLC Method for the Determination of Nelaribine in Bulk and Tablet Dosage Form" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-1 | Issue-4 , June 2017, URL: http://www.ijtsrd.com/papers/ijtsrd181.pdf http://www.ijtsrd.com/pharmacy/analytical-chemistry/181/validated-rp-hplc-method-for-the-determination-of-nelaribine-in-bulk-and-tablet-dosage-form/mrspdchaithanya-sudha
Method Development and Validation of Clopidogrel Bisulphate by Reverse Phase-...SriramNagarajan15
A new, simple sensitive, rapid, accurate and precise RP-HPLC method was developed for the estimation of Clopidogrel bisulphate in bulk drug and pharmaceutical formulation. Clopidogrel bisulphate was chromatographed on a reverse phase C18column (150 mm x 4.5 mm, i.d 5μm) in a mobile phase consisting of acetonitrile and phosphate buffer (pH: 3.0) in the ratio of 60:40 % v/v. The mobile phase was pumped at a flow rate of 1 ml/min with detection at 224 nm. The detector response was linear in the concentration of 50-150 μg /ml. The limit of detection and limit of quantitation was found to be 1.3 and 4.2 µg/ml, respectively. The intra and inter day variation was found to be less than 2%. The mean recovery of the drug from the solution was 99.79%. The proposed method is simple, fast, accurate, precise and reproducible hence, it can be applied for routine quality control analysis of Clopidogrel bisulphate in bulk drug and pharmaceutical formulation. Key words: Clopidogrel bisulphate, RP-HPLC, Validation, Accuracy, Precision.
Development and validation of new rp hplc method for analysis of capecitabine...IJSIT Editor
A new precise accurate and reliable validated method for the determination of Capecitabine has been
developed by using reverse phase high performance liquid chromatography in pharmaceutical dosage forms.
Spectrophotometric determination was carried out at an absorption maximum of 230nm by using methanol.
The linearity was over the concentration range of 20-120 μg/ml with correlation coefficient 0.999.
Chromatographic separation was carried out by using a mobile phase of methanol: Acetonitrile: water
(80:18:2 V/V) on Zodiac C18 column (250 mm X 4.6 mm, 5 μm) in an isocratic mode at a flow rate of 1.1
ml/min with UV detection at 230 nm. The developed methods were found to be precise and accurate for the
estimation of Capecitabine in pharmaceutical dosage forms and could be used for routine analysis.
RP-HPLC Assay Method Validation for the estimation of new Anti-retroviral dru...SriramNagarajan15
A Reverse phase HPLC method was developed for estimation of the Lamivudine in bulk and tablet formulation by using ODS column (250mm×4.6mm, 5µm) and Acetate buffer: acetonitrile (50:50) as mobile phase, at a flow rate of 1.5ml/min. The detection was carried at the 272nm the retention time of the Lamivudine is 1.850. The developed method was validated for the various parameters as per the ICH guidelines like accuracy precision, linearity and range, Robustnes. Linearity was obtained in the concentration range of 10µg/ml to 50µg/ml with correlation coefficient of 0.999. The accuracy of the method was assessed by recovery studies at three different concentration levels. The percentage recovery of Lamivudine was found to be in the range of 98% -102%. The method was found to be precise as indicated by the repeatability, inter-day, intra-day analysis, showing %RSD less than 2. Key words: RP-HPLC, Lamivudine, Pharmaceutical dosage form.
Development and validation of a stability-indicating HPLC method for the simultaneous determination of Losartan potassium, hydrochlorothiazide, and their degradationproducts
Differential spectrophotometric method for estimation and validation of Verap...roshan telrandhe
The aimed of current research to development of the simple, rapid and sensitive Differential spectrophotometric method for the estimation of Verapamil in tablet dosage form. In this method two medium was use acid and alkaline and the difference spectrum was calculated. 0.1N HCL and 0.1N NaOH was used in this differential method. The λmax 278, beeers law limits 525µg/ml, regression equation Y= 0.024x-0.009, slope 0.024, intercept 0.09, correlation coefficient (r2) 0.998, %RSD <1.5, % Recovery (Tablet) 100.46% was shows the good efficacy and results. This method future scope in quality control of the verapamine in simple, precise and economically and it recommended for the routine drug quality analysis investigation.
If revisions are requested, the authors need to address the reviewer's comments and make the necessary changes to the paper. The revised paper is then resubmitted to the journal or conference for another round of review or evaluation of the journalism research paper.
Analytical Method Development and Validation of Dutasteride and Tamsulosin Hc...SriramNagarajan15
A simple,specific, sensitive,precise and reproducible Reverse Phase High Performance liquid Chromatography method has been developed for simultaneous estimation of Dutasteride and Tamsulosin Hcl. Dutasteride and Tamsulosin is Anti-hyperplasia and Anti-hypertensive drug.The determinationwas carried out byusingsymmetryC-18columnwith Methanol:0.1M Monobasic potassiumdihydrogenphosphate buffer(75:25) Adjusted the pH to 2.5 with Ortho phosporic acid as the mobile phase and with the detection wavelength of274 nmrespectively.The flow rate is 0.7 ml/min.TheRetentiontime of Dutasteride,Tamsulosin Hcl was 2.218 minand 6.599 min respectively.Linearityforthe Dutasteride and Tamsulosin Hcl were found inthe rangeof 25-75µgmand 20-60µgm respectively.The limitof quantificationforbothdrugs wasfound to be30,24µg respectively.The recoveries of Tamsulosin and Dutasteride were found to be inthe range of 99.81-99.90 %and98.00-102.00%, respectively. The proposed method was validated suitably and canbeused for routine analysis. The degradation studies indicated Dutasteride and Tamsulosin Hcl to besusceptible to neutralhydrolysis, while Dutasteride and Tamsulosin Hcl showed degradation inacid, H2O2,photolytic and inpresenceof UV radiation.The degradation productsof Dutasteride andTamsulosin Hcl inacidic and photolytic conditions were well resolved from the pure drug with significant differences in the irretention time values. This method can be successfully employed forsimultaneous quantitative analysis of Dutasteride and Tamsulosin Hcl in formulations.
Spectrophotometric determination of a few commercial drugs using NBS and Rhod...IOSR Journals
Simple, sensitive and selective methods are developed for the spectrophotometric determination of drugs, viz., Montelukast sodium, Prasugrel, Ondensetron, Rosuvastatin calcium, Amlodepine besylate based on their reactivity towards N- bromosuccinimide (NBS). The method involves the addition of excess NBS of known concentration in the presence of 1M HCl, reactants are allowed to react and the unreacted NBS is estimated by the measurement in the decrease in the absorbance of the Rhodamine-B dye (λmax 557nm). This method has been applied for the determination of drugs in their pure form as well as in tablet formulations
Spectrophotometric Determination of Cardiovascular DrugsIJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
The drug or drug combination may not be official in any pharmacopoeias.
A proper analytical procedure for the drug may not be available in the literature due to patent regulations.
Analytical methods may not be available for the drug in the form of a formulation due to the interference caused by the formulation excipients.
Analytical methods for the quantitation of the drug in biological fluids may not be available.
Analytical methods for a drug in combination with other drugs may not be available.
The existing analytical procedures may require expensive reagents and solvents. It may also involve cumbersome extraction and separation procedures and these may not be reliable.
Analytical method development and validation for the estimation of quinapril ...SriramNagarajan19
A simple and selective LC method is described for the determination of Quinapril and Tolcapone tablet dosage forms. Chromatographic separation was achieved on a c18 column using mobile phase consisting of a Mixed Phosphate buffer (KH2PO4 +K2HPO4): Acetonitrile 40:60, with detection of 239 nm. Linearity was observed in the range 50 - 150 µg /ml for Quinapril (r2 =0.995) and 62.5- 187.5µg /ml for Tolcapone (r2 =0.999) for the amount of drugs estimated by the proposed methods was in good agreement with the label claim.
The proposed methods were validated. The accuracy of the methods was assessed by recovery studies at three different levels. Recovery experiments indicated the absence of interference from commonly encountered pharmaceutical additives. The method was found to be precise as indicated by the repeatability analysis, showing %RSD less than 2. All statistical data proves validity of the methods and can be used for routine analysis of pharmaceutical dosage form.
Bioanalytical Validated LC-MS Method for Determination of Naproxen in Human P...IJMTST Journal
Naproxen is an anti-inflammatory drug belongs to the category of analgesics and antipyretics. Naproxen
has the ability to bind and inhibit the synthesis of prostaglandins and produces anti-inflammatory effect.
Naproxen also inhibits COX-II which is involved in the inflammation. Bioanalytical method for naproxen has
been developed using human plasma. Standard stock solution of naproxen was prepared using methanol.
Zidovudine was used as internal standard. The linearity of the proposed method was developed in the range
between 100 and 10000 ng/ml. The slope of the curve was found to be 111.46 and intercept was 6395.2 and
correlation coefficient was 0.999. The proposed method was evaluated with validation parameters like
accuracy, precision and stability. The developed method is suitable for pharmacokinetic studies.
IPQC and FPQC test for opthalmic preparation as per IP, BP ANIPQC D USProshan telrandhe
Ophthalmic preparation are the sterile liquid or semisolid preparation meant to installation in to the eyes in the space between eye lids and eye ball . These product must be sterile and are prepare under the same condition as that of parenteral preparation
Differential spectrophotometric method for estimation and validation of Verap...roshan telrandhe
The aimed of current research to development of the simple, rapid and sensitive Differential spectrophotometric method for the estimation of Verapamil in tablet dosage form. In this method two medium was use acid and alkaline and the difference spectrum was calculated. 0.1N HCL and 0.1N NaOH was used in this differential method. The λmax 278, beeers law limits 5-25µg/ml, regression equation Y= 0.024x-0.009, slope 0.024, intercept 0.09, correlation coefficient (r 2) 0.998, %RSD <1.5, % Recovery (Tablet) 100.46% was shows the good efficacy and results. This method future scope in quality control of the verapamine in simple, precise and economically and it recommended for the routine drug quality analysis investigation.
Formulation and Evaluation of Herbal Toothpaste: Compared with marketed prepa...roshan telrandhe
The aimed of current research to formulate herbal toothpaste utilizing plant extract like Neem leaves, Guava leaves, Cinnamon bark other ingredient are Camphor, Honey. The plant extract ingredient posses the anti-bacterial. The herbal toothpaste formulated which can satisfy all the required condition to keep the mouth fresh and prevent tooth decay by bacteria. The formulated herbal toothpaste compared with marketed preparation. Physical examination: Colour-greenish brown, smooth in nature, relative density-10.2, pH-8.2, Extrudability-90.37, spredability-Good and stable formulation. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated herbal tooth paste exhibited notable activity with ZOI of 19.7 mm at MIC of 25μg/mL. the outcome of this research herbal toothpaste shows equal patronizing and engrossing passion over the marketed preparation it was consider after the comparing the marketed preparation(Colgate, Dabour Red, Dantkanti) with formulated herbal toothpaste. It has been good scope in future dental research and detal health of public.
Formulation and Evaluation of Herbal Toothpaste: Compared with marketed prepa...roshan telrandhe
The aimed of current research to formulate herbal toothpaste utilizing plant extract like Neem leaves, Guava leaves, Cinnamon bark other ingredient are Camphor, Honey. The plant extract ingredient posses the anti-bacterial. The herbal toothpaste formulated which can satisfy all the required condition to keep the mouth fresh and prevent tooth decay by bacteria. The formulated herbal toothpaste compared with marketed preparation. Physical examination: Colour-greenish brown, smooth in nature, relative density-10.2, pH-8.2, Extrudability-90.37, spredability-Good and stable formulation. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated herbal tooth paste exhibited notable activity with ZOI of 19.7 mm at MIC of 25μg/mL. the outcome of this research herbal toothpaste shows equal patronizing and engrossing passion over the marketed preparation it was consider after the comparing the marketed preparation(Colgate, Dabour Red, Dantkanti) with formulated herbal toothpaste. It has been good scope in future dental research and detal health of public.
Formulation and Evaluation of Tooth Gel from Aloe vera leaves extractroshan telrandhe
The aimed of current research to formulate tooth gel utilizing leaf extract of Aloe vera. In multiple clinical studies, Aloe vera has used in dentistry for wound-healing effect, gingivitis, plaque control and curing oral mucosal lesions. Aloe vera is natural, ancient ingredient. The formulated Aloe vera tooth gel evaluated by physical examination: Colour-yellowish brown, Appearance-Homogeneous, smooth nature, Transparency-translucent and Relative density-10.5, No microbial growth in sample plate, pH7.5, Viscosity-310000cp, Extrudability amount percent-91.33, Spreadability-6.5cm/sec and obsereved good stability. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated aloe vera tooth gel exhibited notable activity with ZOI of 19.5 mm at MIC of 25μg/mL. The outcome from this research evidently signified that the natural plant Aloe vera using to formulate tooth gel may be a new approach to formulate tooth gel economically and minimum side effect than synthetic formulation and good scope in future about dental research in natural remedies.
The current research aimed at fabricating plant extract mediated biosynthesized silver nanoparticles (AgNPs) utilizing thorn extract of Bombax ceiba (TEBC). The synthesized AgNPs was characterized by UV spectroscopy where the surface plasmonic resonance peak (SPR) was located at 222 nm. The scanning electron microscopy (SEM) studies demonstrated that the morphology of fabricated nanomaterials was primarily cylindrical of average size of 20-30 nm with some spindles of size >50 nm. The anti-microbial evaluation against Staphylococcus aureus revealed that AgNPs exhibited notable activity with ZOI of 27.2 mm at MIC of 25 μg/mL. The outcome of this research evidently signified that the biofabricated AgNPs using TEBC may be a new greener approach or technology to formulate anti-bacterial nanodrugs in future.
Nanotechnology for Cancer therapy: Recent developmentsroshan telrandhe
This paper is an overview of advances and prospects in applications of nanotechnology for cancer treatment. Nanotechnology is an use for prevention, diagnosis, and treatment. nanotechnology offers a promise for the targeted delivery of drugs, genes and protein to tumer tissue and therefore alleviating the toxicity of anticancer agent in healthy tissues. Cancer is one of the leading causes of death worldwide. Nanotechnology is one of the most rapidly growing fields in the 21st centuryThese mainly include arrays of nanocantilevers, nanotubes and nanowires for multiplexing detection, multifunctional injectable nanovectors for therapeutics and diagnostics. This article review current nanotechnology platforms for anticancer drug delivery, including polymeric nanoparticles, liposomes, dendrimers, nanoshells, nuclear acid base nanoparticle [DNA, RNA interference (RNAi), and antisense oligonucleotide (ASO) ] The review increases awarnes of advantages in cancer therapy.
Nanoparticle of plant extract: A Novel approach for cancer theraproshan telrandhe
Nanotechnology deals regulating matter at dimension of 1-100 nanometers. its use in fundamental physics, biology, chemistry, technology of nanometer scale objects. It also includes how such objects can be used in the areas of computation, sensors, nanostructure materials, biolabeling, biomedical, agricultural, biolabeling , cancer, biotechnology. There are 3 methods for preparation of nanoparticles Physical, chemical &biological. Cancer is as an abnormal growth of cells. It is due to lack of proper regulation in cell cycle. Cancer develops through an accumulation of genetic changes or mutations which could emerge due to different factors like physical, chemical, biological. Currently available cancer chemotherapeutic agents insidiously affect the host cells especially bone marrow, epithelial tissues, reticule-endothelial system and gonads Because of high death rate associated with cancer and the serious side effects of chemotherapy & radiation therapy. Silver NanoParticles as an anticancer agent and they have all turned up positive. Many plant-derived products have been reported to exhibit potent antitumour activity against several rodent and human cancer cell lines. Plants history about use in the treatment of cancer. It is significant that over 60% of currently used anticancer agents are derived, in one way or another, from natural sources (plants, marine organism, and microorganisms)
NOVEL IPQCL AND FPQC TEST FOR OPTHALMIC PREPARATION AS PER IP, BP A...roshan telrandhe
Ophthalmic preparation are the sterile liquid or semisolid preparation meant to installation in to the eyes in the space between eye lids and eye ball .
These product must be sterile and are prepare under the same condition as that of parenteral preparation
Formulation and Evalua-tion of Herbal Toothpaste: Compared With Marketed Prep...roshan telrandhe
The aimed of current research to formulate herbal toothpaste utilizing plant extract like Neem leaves, Guava leaves, Cinnamon bark other ingredient are Camphor, Honey. The plant extract ingredient posses the anti-bacterial. The herbal toothpaste formulated which can satisfy all the required condition to keep the mouth fresh and prevent tooth decay by bacteria. The formulated herbal toothpaste compared with marketed preparation. Physical examination: Colour-greenish brown, smooth in nature, relative density-10.2, pH-8.2, Extrudability-90.37, spredability- Good and stable formulation. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated herbal tooth paste exhibited notable activity with ZOI of 19.7 mm at MIC of 25μg/mL. the outcome of this research herbal toothpaste shows equal patronizing and engrossing passion over the marketed preparation it was consider after the comparing the marketed preparation(Colgate, Dabour Red, Dantkanti) with formulated herbal toothpaste. It has been good scope in future dental research and detal health of public.
Formulation and Evaluation of Herbal Toothpaste: Compared with marketed prepa...roshan telrandhe
The aimed of current research to formulate herbal toothpaste utilizing plant extract like Neem leaves, Guava leaves, Cinnamon bark other ingredient are Camphor, Honey. The plant extract ingredient posses the anti-bacterial. The herbal toothpaste formulated which can satisfy all the required condition to keep the mouth fresh and prevent tooth decay by bacteria. The formulated herbal toothpaste compared with marketed preparation. Physical examination: Colour-greenish brown, smooth in nature, relative density-10.2, pH-8.2, Extrudability-90.37, spredability- Good and stable formulation. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated herbal tooth paste exhibited notable activity with ZOI of 19.7 mm at MIC of 25μg/mL. the outcome of this research herbal toothpaste shows equal patronizing and engrossing passion over the marketed preparation it was consider after the comparing the marketed preparation(Colgate, Dabour Red, Dantkanti) with formulated herbal toothpaste. It has been good scope in future dental research and detal health of public.
formulation and evaluation of tooth gel from aloe vera leaves extractroshan telrandhe
The aimed of current research to formulate tooth gel utilizing leaf extract of Aloe vera. In multiple clinical studies, Aloe vera has used in dentistry for wound-healing effect, gingivitis, plaque control and curing oral mucosal lesions. Aloe vera is natural, ancient ingredient. The formulated Aloe vera tooth gel evaluated by physical examination: Colour-yellowish brown, Appearance-Homogeneous, smooth nature, Transparency-translucent and Relative density-10.5, No microbial growth in sample plate, pH7.5, Viscosity-310000cp, Extrudability amount percent-91.33, Spreadability-6.5cm/sec and obsereved good stability. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated aloe vera tooth gel exhibited notable activity with ZOI of 19.5 mm at MIC of 25μg/mL. The outcome from this research evidently signified that the natural plant Aloe vera using to formulate tooth gel may be a new approach to formulate tooth gel economically and minimum side effect than synthetic formulation and good scope in future about dental research in natural remedies.
The current research aimed at fabricating plant extract mediated biosynthesized silver nanoparticles (AgNPs) utilizing thorn extract of Bombax ceiba (TEBC). The synthesized AgNPs was characterized by UV spectroscopy where the surface plasmonic resonance peak (SPR) was located at 222 nm. The scanning electron microscopy (SEM) studies demonstrated that the morphology of fabricated nanomaterials was primarily cylindrical of average size of 20-30 nm with some spindles of size >50 nm. The anti-microbial evaluation against Staphylococcus aureus revealed that AgNPs exhibited notable activity with ZOI of 27.2 mm at MIC of 25 μg/mL. The outcome of this research evidently signified that the biofabricated AgNPs using TEBC may be a new greener approach or technology to formulate anti-bacterial nanodrugs in future.
Nanotechnology for cancer therapy recent developmentsroshan telrandhe
This paper is an overview of advances and prospects in applications of nanotechnology for cancer treatment. Nanotechnology is an use for prevention, diagnosis, and treatment. nanotechnology offers a promise for the targeted delivery of drugs, genes and protein to tumer tissue and therefore alleviating the toxicity of anticancer agent in healthy tissues. Cancer is one of the leading causes of death worldwide. Nanotechnology is one of the most rapidly growing fields in the 21st centuryThese mainly include arrays of nanocantilevers, nanotubes and nanowires for multiplexing detection, multifunctional injectable nanovectors for therapeutics and diagnostics. This article review current nanotechnology platforms for anticancer drug delivery, including polymeric nanoparticles, liposomes, dendrimers, nanoshells, nuclear acid base nanoparticle [DNA, RNA interference (RNAi), and antisense oligonucleotide (ASO) ] The review increases awarnes of advantages in cancer therapy
Formulation and evaluation of herbal toothpaste compared with marketed prepar...roshan telrandhe
The aimed of current research to formulate herbal toothpaste utilizing plant extract like Neem leaves, Guava leaves, Cinnamon bark other ingredient are Camphor, Honey. The plant extract ingredient posses the anti-bacterial. The herbal toothpaste formulated which can satisfy all the required condition to keep the mouth fresh and prevent tooth decay by bacteria. The formulated herbal toothpaste compared with marketed preparation. Physical examination: Colour-greenish brown, smooth in nature, relative density-10.2, pH-8.2, Extrudability-90.37, spredability- Good and stable formulation. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated herbal tooth paste exhibited notable activity with ZOI of 19.7 mm at MIC of 25μg/mL. the outcome of this research herbal toothpaste shows equal patronizing and engrossing passion over the marketed preparation it was consider after the comparing the marketed preparation(Colgate, Dabour Red, Dantkanti) with formulated herbal toothpaste. It has been good scope in future dental research and detal health of public.
Formulation and evaluation of herbal toothpaste compared with marketed prepar...roshan telrandhe
The aimed of current research to formulate herbal toothpaste utilizing plant extract like Neem leaves, Guava leaves, Cinnamon bark other ingredient are Camphor, Honey. The plant extract ingredient posses the anti-bacterial. The herbal toothpaste formulated which can satisfy all the required condition to keep the mouth fresh and prevent tooth decay by bacteria. The formulated herbal toothpaste compared with marketed preparation. Physical examination: Colour-greenish brown, smooth in nature, relative density-10.2, pH-8.2, Extrudability-90.37, spredability- Good and stable formulation. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated herbal tooth paste exhibited notable activity with ZOI of 19.7 mm at MIC of 25μg/mL. the outcome of this research herbal toothpaste shows equal patronizing and engrossing passion over the marketed preparation it was consider after the comparing the marketed preparation(Colgate, Dabour Red, Dantkanti) with formulated herbal toothpaste. It has been good scope in future dental research and detal health of public.
Formulation and evaluation of tooth gel from aloe vera leaves extractroshan telrandhe
The aimed of current research to formulate tooth gel utilizing leaf extract of Aloe vera. In multiple clinical studies, Aloe vera has used in dentistry for wound-healing effect, gingivitis, plaque control and curing oral mucosal lesions. Aloe vera is natural, ancient ingredient. The formulated Aloe vera tooth gel evaluated by physical examination: Colour-yellowish brown, Appearance-Homogeneous, smooth nature, Transparency-translucent and Relative density-10.5, No microbial growth in sample plate, pH-7.5, Viscosity-3100cp, Extrudability amount percent-91.33, Spreadability-6.5cm/sec and obsereved good stability. The anti-microbial evaluation against Staphylococcus aureus reveal that formulated aloe vera tooth gel exhibited notable activity with ZOI of 19.5 mm at MIC of 25μg/mL. The outcome from this research evidently signified that the natural plant Aloe vera using to formulate tooth gel may be a new approach to formulate tooth gel economically and minimum side effect than synthetic formulation and good scope in future about dental research in natural remedies.
The current research aimed at fabricating plant extract mediated biosynthesized silver nanoparticles (AgNPs) utilizing thorn extract of Bombax ceiba (TEBC). The synthesized AgNPs was characterized by UV spectroscopy where the surface plasmonic resonance peak (SPR) was located at 222 nm. The scanning electron microscopy (SEM) studies demonstrated that the morphology of fabricated nanomaterials was primarily cylindrical of average size of 20-30 nm with some spindles of size >50 nm. The anti-microbial evaluation against Staphylococcus aureus revealed that AgNPs exhibited notable activity with ZOI of 27.2 mm at MIC of 25 μg/mL. The outcome of this research evidently signified that the biofabricated AgNPs using TEBC may be a new greener approach or technology to formulate anti-bacterial nanodrugs in future.
Nanoparticle of plant extract: A Novel approach for cancer therapyroshan telrandhe
Presented in NATIONAL CONFERENCE ;A Phytomedicine : A Novel Approach For Cancer Treatment. Sponsered By Indian Councial Of Medical Research, Delhi. OrganisedBy KamlaNehru College Of Pharmacy, Butibori, Nagpur441108, Maharastra, India. ON 25 & 26 March 2017
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?
Differential spectrophotometric method for estimation and validation of verapamil in tablet dosage form
1. INTERNATIONAL JOURNAL OF PHARMACEUTICS & DRUG ANALYSIS
VOL.5 ISSUE 11, 2017; 419 – 422; http://ijpda.com; ISSN: 2348-8948
419
Research Article
Differential spectropho-
tometric method for esti-
mation and validation of
Verapamil in Tablet do-
sage form
Leena Trivedi, Roshan Telrandhe*,
Disha Dhabarde
Kamla Nehru College of Pharmacy, Butibori,
Nagpur 441108, Maharashtra, India
Date Received: 4th November 2017; Date accepted:
16st November 2017; Date Published: 20th
November 2017
Abstract
The aimed of current research to development of
the simple, rapid and sensitive Differential spec-
trophotometric method for the estimation of Vera-
pamil in tablet dosage form. In this method two
medium was use acid and alkaline and the differ-
ence spectrum was calculated. 0.1N HCL and 0.1N
NaOH was used in this differential method. The
λmax 278, Beers law limits 5-25µg/ml, regression
equation Y= 0.024x-0.009, slope 0.024, intercept
0.09, correlation coefficient (r2) 0.998, %RSD <1.5, %
Recovery (Tablet) 100.46% was shows the good
efficacy and results. This method future scope in
quality control of the verapamil in simple, precise
and economically and it recommended for the rou-
tine drug quality analysis investigation.
Keywords: Difference spectrophotometry, Vera-
pamil, Calibration, Tablet, Validation.
INTRODUCTION
Verapamil Hydrochloride is a chemically known as
5-[N-(3,4-dimethoxy-phenethyl)-N-methyl-amino]-
2-(3,4-dimethoxyphenyl)-2-isopropylvaleronitrile
hydrochloride. This is a calcium channel blocker, it
show the anti-arrhythmic drug to manage supra
ventricular arrhythmias and it also anti-anginal
drug. Some analytical methods for quantitative
determination of Verapamil are described viz., ca-
pillary electrophoresis, tandem mass spectroscopy
detection (LC-MS/MS), HPLC and inverse volt-
ampere method. By the various survey of literature
revealed that oxidative method of quantification of
these drugs by Ce (IV) have been not reported yet,
although the method simple sensitive, precise and
accurate1.
HPLC was one of the methods of choice of re-
searcher for the analysis of the drug showing an
overlapped spectrum on UV spectrophotometry.
But HPLC being an expensive and also the time
consuming method from the last few years, che-
mometric spectrophotometry is immensely attract-
ing the analysts and play an importance role in
accurate detection of complex drug mixtue3.
Verapamil was introduced in 1962 as coronary va-
sodilator and it also prototype of the Ca2+ antagon-
ists used in cardiovascular disease. Verapamil ma-
jor effect is on the slow calcium channel. The inhi-
bition of the action potential inhibits one limb of
the reentry circuit believed point. It is class IV anti-
arrhythmic drug. Verapamil also cause a change in
Hemodynamic preload. The drugs reduce systemic
vascular resistance and mean blood pressure with
minor effect on cardiac output5.
Differential spectrophotometry is an analytical
technique which has been used to improve the se-
lectivity and accuracy of the measurement. It is
based on measuring the difference of two equimo-
lar solution of the analyte in different chemical
forms. It is not only eliminates matrix interference
due to excipients, but it also resolves spectral over-
lap of other accompanying drugs7.
The accuracy and selectivity of conventional UV
absorption method is also increased by conversion
of normal zero-order or differential UV spectra
into higher order. So the application of differential
spectrophotometry is an expected to have the ad-
vantages of both derivative spectrometry like first
and second combined with delta spectrophotime-
try9. The aim of current study to developed diffe-
rential spectrophotometric method for the estima-
tion of verapamil in tablet dosage form. The accu-
racy, precision, %RSD and recovery study was in-
dicated the reproducibility.
2. Roshan T et al; Int J. Pharm. Drug. Anal, Vol: 5, Issue: 11, 2017; 419-422
Available online at http://ijpda.com
420
MATERIALS AND METHOD
Chemicals and equipments
Hydrochloric acid, Sodium hydroxide,
pure Verapamil (Nicholas Piramal), Verapamil (Ve-
ramil 40mg) tablet purchase from Themis Medi-
care.
Jasco UV-Visible double beam Spectrophotometer
with 1 cm matched pair quartz cell and spectral
bandwidth of 2cm.
EXPERIMENTAL
1. METHODS10
Selection of solvent
0.1N HCL and 0.1N NaOH was selected as solvent
for developing spectral characteristics of drug. The
selection was made after the trial of different acids
and bases and their different normality.
Preparation of Standard drug solution
A. In HCL
An accurately 10mg of Verapamil weighed and
transfer into 100ml volumetric flask, dissolved in
0.1N HCL and volume was made up to produced
100µg/ml solution.
B. In NaOH
An accurate 10mg of verapamil weighed and trans-
fer into 100ml volumetric flask, dissolved in 0.1N
NaOH and volume was made up to the produced
100 µg/ml solution.
For A and B the separate preparation of different
concentration, aliquots of stock solution were
transferred into a series of 10ml standard volume-
tric flask and volume were adjusted with respec-
tive solvent of 5 different concentrations from 5 to
25 µg/ml of Verapamil were prepared.
Wavelength selection
Standard solutions of the drug were scanned to
generate an absorption spectrum. The Wavelength
at which drug show maximum absorption was
selected as λmax and used as a analytical wave-
length. All the dilutions were scanned in the range
200-400 nm,
The wavelength selected for estimation of verapa-
mil was 278nm (Fig 1& 2)
Plotting Calibration curve
The calibration curve of verapamil was done in the
range of concentration 5 to 25 µg/ml. (Table 1 & Fig
3)
Assay of verapamil in tablet11
Marketed formulations of containing 5mg of vera-
pamil were analyzed by this method. 20 tablets
were triturate an amount equivalent to 10mg of
verapamil was weighed and transfer into the 100ml
volumetric flask. The content of the flask were dis-
solved in the 50ml of the 0.1N HCL and 0.1N
NaOH separately with the aid of ultra-sonication
for 10min. The solution was filtered through
whatman filter paper no. 41 and then final volume
of the solution was made up to 100ml with same
solvents to get a stock solution containing 100
µg/ml of verapamil in 0.1N HCL and 0.1N NaOH.
After appropriate dilutions, the absorbance were
measured and the concentration of each analyte
was determined with the equation obtained from
calibration curve.(Table 2) shows the λmax, %RSD,
intraday, inter-day and % recovery of tablet was
noted.
2. VALIDATION12
The proposed differential UV spectrophotometric
method was statistically validated for linearity,
accuracy, precision, repeatability, reproducibility,
robustness, range, sensitivity, limit of detection and
quantification. (Table 2) shows the beers law limits,
regression equation, slope, intercept, correlation
coefficient (r2) was calculated.
Linearity
Linearity of the proposed method was by the plot-
ting 5 point calibration curve. The result used to
calculate % relative standard deviation using the
linear regression equation of the line by least
square regression method.(Fig 3) good result was
calculated.
Recovery study
Accuracy and sensitivity of analysis was determine
by performing recovery study by spiking different
concentrations of pure drug in the reanalyzed tab-
let sample.(Table 2) show the results. The recovery
was 100.46% was observed.
3. Roshan T
RESULTS AND DISCUSSION
Spectral Study / Wavelength selection
Fig 1: Spectra of Verapamil in 0.1N HCL
Fig 2: Spectra of Verapamil in 0.1N NaOH
From the Fig 1 & Fig 2 the acidic and alk
dium results the wavelength was selected 278nm.
Calibration plot
Table 1: Concentration and Absorbance of Ver
pamil in Acidic and Alkaline medium (Amplitude)
Concentration Absorbance
(µg/ml) 0.1N
HCL
0.1N
NaOH
5 0.357 0.258
10 0.711 0.476
15 1.012 0.660
20 1.335 0.850
25 1.561 0.966
T et al; Int J. Pharm. Drug. Anal, Vol: 5, Issue: 11, 2017; 419-422
Available online at http://ijpda.com
ction
Spectra of Verapamil in 0.1N HCL
Spectra of Verapamil in 0.1N NaOH
2 the acidic and alkaline me-
lected 278nm.
Concentration and Absorbance of Vera-
pamil in Acidic and Alkaline medium (Amplitude)
Amplitude
(Difference)
0.099
0.235
0.352
0.485
0.595
Fig 3: The difference Absorption Cal
Curve of Verapamil in Acidic and Alkaline sol
tion.
Validation of method and regression analysis
Table 2: regression analysis and method v
Parameters Differential
troscop
λ max, nm 278
Beer’s law limits (µg/ml) 5-
Regression equation (Y*) Y=0.024x
Slope (b) 0.024
Intercept (a) 0.09
Correlation coefficient(r2) 0.998
%RSD** <1.5
Intraday % 1.1
Inter-day % 1.1
% Recovery (Tablet) 100.46%
CONCLUSION
The research indicates the method is found to be
simple, precise. It had good reproduc
tive and sensitive method. The statistical param
ters clearly indicate the reproducible
of the method by spiking the diffe
tions of pure verapamil. This method recommen
ed for routine and quality control analysis of the
investigated drug in tablets.
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