This document discusses drug formulation and different dosage forms. It explains that drug formulation considers factors like the physical nature, size, solubility, taste and absorption of the drug. The main dosage forms covered are solid (tablets, capsules, lozenges, powders), liquid (solutions, syrups, suspensions, emulsions, elixirs) and semi-solid (ointments, creams, gels, pastes, suppositories). Each dosage form is described in terms of its composition, use and examples. Sustained release formulations are also mentioned as providing gradual drug release over time.
Bioavailability & Bioequivalence ppt, Objectives, Improving bioavailability, Assessment of bioavailability, Urinary excretion studies, Blood serum studies, in vitro drug dissolution testing, need for dissolution testing, in vitro drug dissolution testing models, Bioequivalence, Therapeutic equivalence, Types of bioequivalence studies, Pharmacokinetic studies, Methods to enhance dissolution rate.
Packaging of pharmaceuticals, glass, plastic, rubber , metal as a container, ...RajkumarKumawat11
Packaging of pharmaceuticals, glass, plastic, rubber , metal as a container, aerosol and aerosol packaging, pharmaceutics, pharmaceutical packaging, Packaging chapter for pharma students, rajkumar kumawat
Bioavailability & Bioequivalence ppt, Objectives, Improving bioavailability, Assessment of bioavailability, Urinary excretion studies, Blood serum studies, in vitro drug dissolution testing, need for dissolution testing, in vitro drug dissolution testing models, Bioequivalence, Therapeutic equivalence, Types of bioequivalence studies, Pharmacokinetic studies, Methods to enhance dissolution rate.
Packaging of pharmaceuticals, glass, plastic, rubber , metal as a container, ...RajkumarKumawat11
Packaging of pharmaceuticals, glass, plastic, rubber , metal as a container, aerosol and aerosol packaging, pharmaceutics, pharmaceutical packaging, Packaging chapter for pharma students, rajkumar kumawat
Let's Know About Your Drugs ,,, Part - III ( Dosage Forms and Drug Delivery Systems) for study purpose pharmaceutical professional such as students and other specialized field. Presentation for "LEARN & EARN KNOWLEDGE" based.
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A detailed study on tablets, its classification, excipients, tablet granulation, methods of granulation, compression machines, equipment tooling and the problems that occur during the tablet manufacturing process. This presentation is based on the PCI syllabus for bpharm students of fifth semester.
A detailed study on Tablets which describes about tablets, coating of tablets and then a study on the quality control of tablets. The chapter deals with the minute aspects of tablets and gives us an enlightenment of the solid dosage form which is commonly used all around the world
In any work or process documents that are needed before initiation, Between or generally the end of the process just like in a clinical trial those “Documents which permit evaluation of the conduct of a trial and the quality of the data produced. It is given in the 8th section of the ICH-GCP.
A standard for the design, conduct, performance, monitoring, auditing, recording, analyses, and reporting of clinical trials that provides assurance that the data and reported results are credible and accurate, and that the rights, integrity, and confidentiality of trial subjects are protected.
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HIV prevention strategies such as condom prevention, sex education and STI treatment for reducing the spread of HIV/AIDS.
Malaria is caused by a parasite called Plasmodium, which is transmitted via the bites of infected mosquitoes. In the human body, the parasites multiply in the liver, and then infect red blood cells.
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
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Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
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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.
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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
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
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
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2. Drug formulation
Why to use different formulation
Types of dosage forms
Composition of each dosage form
3. Why to use different formulation?
The physical nature of the drug
Drug size
Drug solubility
Drug taste
Drug absorption, first pass effect
Drug side effects
Drug half life
Site of disease or infection
Patient compliance
6. I-Solid dosage forms
Capsules, sustained-release capsules, tablets,
pills, are used to divide a drug or mixture of
drugs into definite doses and avoid the
inconvenience of preparing the dose from dry
powders.
Tablets are a convenient way of giving drugs
that have an unpleasant taste
7. Capsules
the most popular dosage forms for the oral
administration of powders, oils, and liquid
They dissolve readily in the stomach and make the
contents available for absorption only slightly less quickly
than a liquid medicament
Are usually made of gelatin and may be hard or soft
- Hard gelatin capsule : contains powder
- Soft gelatin capsule : contains Liquids
Gelatin capsules may be coated with a substance that
resists the action of gastric juice and so will not
disintegrate until they reach the alkaline secretions of the
intestine. Such capsules are said to be ‘enteric coated
8. Tablets
Tablets are preparations of powdered drug that are
compressed or molded into small disks.
They may be made with or without a diluent
(dextrose, lactose, starch),
And they may differ greatly in size, weight, and shape.
Compressed tablets are made with heavy machinery.
9. Tablets
Compressed tablets usually contain in addition to the
drug a
Diluents, are used when the amount of active
ingredient is small
A binder are substances that give adhesiveness to
the powdered drug.
A disintegrator , such a starch, helps the tablet to
dissolve readily when it is placed in water, because
the starch expands when it gets wet
and a lubricant keep the tablet from sticking to the
machines
10. Tablets
Tablets are sometimes scored (marked with an
indented line across the surface) so-that they can be
broken easily if half a tablet is the dose required.
Tablets may be coated with sugar or chocolate to
enhance their palatability.
They may be covered with a colored coating to make
them more attractive to patients, easier to swallow,
or identifiable by the use of distinctive colors.
Both tablets and capsules may be enteric coated,
to protect the drug from the effect of the gastric secretions
to prevent drug irritation of the gastric mucosa
12. Sustained-release dosage forms
Dosage forms providing for gradual but continued
release of drug .
Sustained-release dosage forms contain small
particles of the drug coated with materials that require
a varying amount of time to dissolve.. This provides for
a long continuous period of absorption and effect.
Some particles dissolve and-are absorbed almost
immediately, others require 2 or 3 hours
13. Lozenges
Troches or lozenges are flat, round, or rectangular preparations
that are held in the mouth until they dissolve, liberating the drug
or drugs involved.
They usually contain water, sugar, and a mucilage in addition to
the drug and are dried in hot air.
They temporarily produce a high concentration of the drug in
the oral cavity.
They are held in the mouth until entirely dissolved.
14. Pills
Pills are mixtures of a drug or drugs with some
cohesive materials.
The mass is molded into globular, oval, or
flattened bodies convenient for swallowing.
They have been replaced to a great extent by
capsules and tablets.
15. Powders
Powders are finely divided solid drugs or
mixtures of drugs for internal or external use.
Dusting powders
Granules
Sachets
25. II-Liquid dosage forms
Solutions
Aqueous solutions have one or more substances dissolved in
water. Examples are strong iodine solution (Lugol's Solution),
epinephrine nasal solution
Syrups
For their demulcent(soothing) effect on irritated membranes
of the throat e.g Promethazina hydrochloride syrup
Suspensions
Defined as preparations of finely divided drugs either intended for
suspension or already in suspension in some suitable liquid
vehicle
26. Liquid dosage forms
Emulsions
suspensions of fats or oils in water with the aid of an, emulsifying
agent, which lowers the interfacial tension between the two
susbtances, masking its oily feel.
These oils are more easily digested than undispersed oils.
Emulsions are stabilized by agents such as acacia and gelatin,
which coat the tiny droplets of oil and prevent them from
coming in direct contact with water.
An example is cod liver oil emulsion
27. Elixirs
are aromatic, sweetened, alcoholic preparations,
frequently used as flavored vehicles, such as
aromatic elixir, or as active medicinal agents if they
are medicated elixirs, such as phenobarbital elixir.
Liquid dosage forms
28. Liquid dosage forms
Liquid forms are composed of
Solvents
Sweeting agents
Flavouring and colouring agent
Stabilisers
Preservatives and antioxidant
29. Liquid dosage forms
-Drops
eye (ophthalmic ) – ear (otic) – nose
(Nasal) – oral (commonly for infants)
- Paints
Lotions
-Tinctures
• -Sprays
- nasal – oral - local
30. Liquid dosage forms
-Ampoules and the like
1-Ampoules ( Single Dose).
2- vials ( multi -dose containers with rubber
capped stopper ).
3- Bottles.
4- Disposable syringes.