SlideShare a Scribd company logo
BARBITURATE
POISONING
BARBITURATE POISONING
•It is the poisoning caused due to overdose of
barbiturates e.g.. Phenobarbitone.
•The lethal dose of 6 – 10 gm is sufficient to cause acute
barbiturate poisoning .
•Short acting barbiturates are more lethal than short
acting ones .
•Coma is more Sevier with barbiturate poisoning .
CLINICAL MANIFESTATIONS :
•Respiratory depression
•Slow and shallow breathing
•Hypotension
•Skin eruptions
•Renal failure
•Cardiovascular collapse
MECHANISM OF ACTION OF POISONING
BARBITURATE
CAUSING GENERALIZED DEPRESSION
DRUG INTERACTS WITH BARBITURATE RECEPTORS
LEADS TO INCREASE IN GABA-mediated chloride channel currents
CAUSING SYNAPTIC INHIBITION
NOTE : while this mechanism takes place ,there also occurs a central
sympathetic tone depression leading to hypotension .
TREATMENT : The barbiturate poisoning has no specific antidote but there are
some measures taken which are as follows :
Gastric lavage followed by administration of activated charcoal to prevent
further absorption of barbiturates.
Maintenance of patent airway , adequate ventilation and oxygen
administration
General supportive measures like maintenance of blood pressure and body
fluid balance .
Forced alkaline diuresis with sodium bicarbonate , a diuretic (frusemide) and
IV fluids which will help to fasten the excretion of long acting barbiturates .
Hemodialysis should be done especially if there is a renal failure.
• Forced alkaline diuresis is a procedure commonly used for treatment of
barbiturate poisoning.
• In this 1.5-2.0 litres of I.V. fluids is administered per hour for 3 hours .
• It is done to maintain urine volume up to more than 500 ml per hour.
• Urine pH is measured every 30 min and the pH of between 7.5 and 8.5 is
maintained.
• Alkaline diuresis should be discontinued after 1 hour if the urine flow is
less than 3 ml per minute.
• Otherwise , it should be continued beyond 3 hours at 1 litre per hour until
blood salicylate is reduced to or less than 2.5 m mol per litre.
Barbiturate poisoning  (pharmacology)

More Related Content

What's hot

Chemotherapy of malignancy
Chemotherapy of malignancyChemotherapy of malignancy
Chemotherapy of malignancy
Atul Prajapati
 
Antimalarial Drugs Pharmacology
Antimalarial Drugs PharmacologyAntimalarial Drugs Pharmacology
Antimalarial Drugs Pharmacology
http://neigrihms.gov.in/
 
Concept of clearance & factors affecting renal excretion
Concept of clearance & factors affecting renal excretionConcept of clearance & factors affecting renal excretion
Concept of clearance & factors affecting renal excretion
chiranjibi68
 
Antiasthmatic drugs
Antiasthmatic drugsAntiasthmatic drugs
Antiasthmatic drugs
Dr UAK
 
Diuretics
DiureticsDiuretics
Diuretics
Dr. HN Singh
 
Urinary Tract Infection
Urinary Tract InfectionUrinary Tract Infection
Urinary Tract Infection
Rahul Kunkulol
 
Anti-Rheumatic drugs
Anti-Rheumatic drugsAnti-Rheumatic drugs
Anti-Rheumatic drugs
JagirPatel3
 
Anti-tubercular agents
Anti-tubercular agentsAnti-tubercular agents
Anti-tubercular agents
Mr.S.SEETARAM SWAMY
 
Antiulcer drugs
Antiulcer drugsAntiulcer drugs
Antiulcer drugs
Bhudev Global
 
Drugs Used in Urinary Tract Infection
Drugs Used in Urinary Tract InfectionDrugs Used in Urinary Tract Infection
Drugs Used in Urinary Tract Infection
Pravin Prasad
 
Histamine and antihistaminics
Histamine and antihistaminicsHistamine and antihistaminics
Histamine and antihistaminics
http://neigrihms.gov.in/
 
Sulfonamides and cotrimoxazole - drdhriti
Sulfonamides and cotrimoxazole - drdhritiSulfonamides and cotrimoxazole - drdhriti
Sulfonamides and cotrimoxazole - drdhriti
http://neigrihms.gov.in/
 
General principles in treatment of common drug poisoining
General principles in treatment of common drug poisoining General principles in treatment of common drug poisoining
General principles in treatment of common drug poisoining
government medical college nagpur
 
Expectorant and antitussives
Expectorant and antitussivesExpectorant and antitussives
Expectorant and antitussives
SnehalChakorkar
 
Anti gout
Anti goutAnti gout
Anti gout
Bhudev Global
 
"Barbiturate poisoning" : By rxvichu-alwz4uh!
"Barbiturate poisoning" : By rxvichu-alwz4uh!"Barbiturate poisoning" : By rxvichu-alwz4uh!
"Barbiturate poisoning" : By rxvichu-alwz4uh!
RxVichuZ
 
Digestants and Carminatives
Digestants and CarminativesDigestants and Carminatives
Digestants and Carminatives
ANUSHA SHAJI
 
Anticoagulant-medicinal chemistry
Anticoagulant-medicinal chemistryAnticoagulant-medicinal chemistry
Anticoagulant-medicinal chemistry
Ganeshprabu10
 
Antileprotic drugs
Antileprotic drugsAntileprotic drugs
Antileprotic drugs
Dr. Pramod B
 
Drug distribution
Drug distributionDrug distribution
Drug distribution
Dr.K.Umasankar Krishnamaraju
 

What's hot (20)

Chemotherapy of malignancy
Chemotherapy of malignancyChemotherapy of malignancy
Chemotherapy of malignancy
 
Antimalarial Drugs Pharmacology
Antimalarial Drugs PharmacologyAntimalarial Drugs Pharmacology
Antimalarial Drugs Pharmacology
 
Concept of clearance & factors affecting renal excretion
Concept of clearance & factors affecting renal excretionConcept of clearance & factors affecting renal excretion
Concept of clearance & factors affecting renal excretion
 
Antiasthmatic drugs
Antiasthmatic drugsAntiasthmatic drugs
Antiasthmatic drugs
 
Diuretics
DiureticsDiuretics
Diuretics
 
Urinary Tract Infection
Urinary Tract InfectionUrinary Tract Infection
Urinary Tract Infection
 
Anti-Rheumatic drugs
Anti-Rheumatic drugsAnti-Rheumatic drugs
Anti-Rheumatic drugs
 
Anti-tubercular agents
Anti-tubercular agentsAnti-tubercular agents
Anti-tubercular agents
 
Antiulcer drugs
Antiulcer drugsAntiulcer drugs
Antiulcer drugs
 
Drugs Used in Urinary Tract Infection
Drugs Used in Urinary Tract InfectionDrugs Used in Urinary Tract Infection
Drugs Used in Urinary Tract Infection
 
Histamine and antihistaminics
Histamine and antihistaminicsHistamine and antihistaminics
Histamine and antihistaminics
 
Sulfonamides and cotrimoxazole - drdhriti
Sulfonamides and cotrimoxazole - drdhritiSulfonamides and cotrimoxazole - drdhriti
Sulfonamides and cotrimoxazole - drdhriti
 
General principles in treatment of common drug poisoining
General principles in treatment of common drug poisoining General principles in treatment of common drug poisoining
General principles in treatment of common drug poisoining
 
Expectorant and antitussives
Expectorant and antitussivesExpectorant and antitussives
Expectorant and antitussives
 
Anti gout
Anti goutAnti gout
Anti gout
 
"Barbiturate poisoning" : By rxvichu-alwz4uh!
"Barbiturate poisoning" : By rxvichu-alwz4uh!"Barbiturate poisoning" : By rxvichu-alwz4uh!
"Barbiturate poisoning" : By rxvichu-alwz4uh!
 
Digestants and Carminatives
Digestants and CarminativesDigestants and Carminatives
Digestants and Carminatives
 
Anticoagulant-medicinal chemistry
Anticoagulant-medicinal chemistryAnticoagulant-medicinal chemistry
Anticoagulant-medicinal chemistry
 
Antileprotic drugs
Antileprotic drugsAntileprotic drugs
Antileprotic drugs
 
Drug distribution
Drug distributionDrug distribution
Drug distribution
 

Similar to Barbiturate poisoning (pharmacology)

Barbiturates
BarbituratesBarbiturates
Barbiturates
ZIKRULLAH MALLICK
 
Anti cholinergic drugs
Anti cholinergic drugsAnti cholinergic drugs
Anti cholinergic drugs
Jegan Nadar
 
Barbiturates forensic aspects mb singh 2020
Barbiturates forensic aspects   mb singh 2020Barbiturates forensic aspects   mb singh 2020
Barbiturates forensic aspects mb singh 2020
balaji singh
 
hyponatremia hypernatremia
hyponatremia hypernatremiahyponatremia hypernatremia
hyponatremia hypernatremia
DrVeereshDhanni
 
diuretics.pptx
diuretics.pptxdiuretics.pptx
diuretics.pptx
Nahush Kakkeri
 
DIURETICS.pptx
DIURETICS.pptxDIURETICS.pptx
DIURETICS.pptx
AkashVigneshwar
 
intravenous induction agents
intravenous induction agentsintravenous induction agents
intravenous induction agents
anaesthesiology-mgmcri
 
IV induction agent.pptx
IV induction agent.pptxIV induction agent.pptx
IV induction agent.pptx
mohamed16169
 
Diuretics
DiureticsDiuretics
Diuretics
Chintan Doshi
 
SEADTIVE HYPNOTIC DRUGS PPT 2.pdf hghhhhhh we
SEADTIVE HYPNOTIC DRUGS  PPT 2.pdf hghhhhhh weSEADTIVE HYPNOTIC DRUGS  PPT 2.pdf hghhhhhh we
SEADTIVE HYPNOTIC DRUGS PPT 2.pdf hghhhhhh we
epicsoundever
 
IV INDUCTION AGENTS-1.pptx
IV INDUCTION AGENTS-1.pptxIV INDUCTION AGENTS-1.pptx
IV INDUCTION AGENTS-1.pptx
RAHULSINGH78494
 
Thiopentone and propofol
Thiopentone and propofolThiopentone and propofol
Thiopentone and propofol
razishahid
 
drugs for peptic ulcer
drugs for peptic ulcerdrugs for peptic ulcer
drugs for peptic ulcer
Rudhra Prabhakar
 
Prevention and maangment of hypotension by aniqa atta
Prevention and maangment of hypotension by aniqa attaPrevention and maangment of hypotension by aniqa atta
Prevention and maangment of hypotension by aniqa atta
aniqaatta1
 
peptic ulcer pharmcological managment.pptx
peptic ulcer pharmcological managment.pptxpeptic ulcer pharmcological managment.pptx
peptic ulcer pharmcological managment.pptx
Pawan Maharjan
 
ACTEP2014: What's new in endocrine emergency
ACTEP2014: What's new in endocrine emergencyACTEP2014: What's new in endocrine emergency
ACTEP2014: What's new in endocrine emergency
taem
 
Intravenous induction agents
Intravenous induction agentsIntravenous induction agents
Intravenous induction agents
anaesthesiology-mgmcri
 
Lecture 2 adithan diuretics july 29, 2016 mgmcri
Lecture 2 adithan diuretics july 29, 2016 mgmcriLecture 2 adithan diuretics july 29, 2016 mgmcri
Lecture 2 adithan diuretics july 29, 2016 mgmcri
Mahatma Gandhi Medical College & Hospital
 
Diuretics
DiureticsDiuretics
Diuretics
KrushangiShah233
 
Drugs modulating cholinesterase enzyme
Drugs modulating cholinesterase enzymeDrugs modulating cholinesterase enzyme
Drugs modulating cholinesterase enzyme
Dr. Pooja
 

Similar to Barbiturate poisoning (pharmacology) (20)

Barbiturates
BarbituratesBarbiturates
Barbiturates
 
Anti cholinergic drugs
Anti cholinergic drugsAnti cholinergic drugs
Anti cholinergic drugs
 
Barbiturates forensic aspects mb singh 2020
Barbiturates forensic aspects   mb singh 2020Barbiturates forensic aspects   mb singh 2020
Barbiturates forensic aspects mb singh 2020
 
hyponatremia hypernatremia
hyponatremia hypernatremiahyponatremia hypernatremia
hyponatremia hypernatremia
 
diuretics.pptx
diuretics.pptxdiuretics.pptx
diuretics.pptx
 
DIURETICS.pptx
DIURETICS.pptxDIURETICS.pptx
DIURETICS.pptx
 
intravenous induction agents
intravenous induction agentsintravenous induction agents
intravenous induction agents
 
IV induction agent.pptx
IV induction agent.pptxIV induction agent.pptx
IV induction agent.pptx
 
Diuretics
DiureticsDiuretics
Diuretics
 
SEADTIVE HYPNOTIC DRUGS PPT 2.pdf hghhhhhh we
SEADTIVE HYPNOTIC DRUGS  PPT 2.pdf hghhhhhh weSEADTIVE HYPNOTIC DRUGS  PPT 2.pdf hghhhhhh we
SEADTIVE HYPNOTIC DRUGS PPT 2.pdf hghhhhhh we
 
IV INDUCTION AGENTS-1.pptx
IV INDUCTION AGENTS-1.pptxIV INDUCTION AGENTS-1.pptx
IV INDUCTION AGENTS-1.pptx
 
Thiopentone and propofol
Thiopentone and propofolThiopentone and propofol
Thiopentone and propofol
 
drugs for peptic ulcer
drugs for peptic ulcerdrugs for peptic ulcer
drugs for peptic ulcer
 
Prevention and maangment of hypotension by aniqa atta
Prevention and maangment of hypotension by aniqa attaPrevention and maangment of hypotension by aniqa atta
Prevention and maangment of hypotension by aniqa atta
 
peptic ulcer pharmcological managment.pptx
peptic ulcer pharmcological managment.pptxpeptic ulcer pharmcological managment.pptx
peptic ulcer pharmcological managment.pptx
 
ACTEP2014: What's new in endocrine emergency
ACTEP2014: What's new in endocrine emergencyACTEP2014: What's new in endocrine emergency
ACTEP2014: What's new in endocrine emergency
 
Intravenous induction agents
Intravenous induction agentsIntravenous induction agents
Intravenous induction agents
 
Lecture 2 adithan diuretics july 29, 2016 mgmcri
Lecture 2 adithan diuretics july 29, 2016 mgmcriLecture 2 adithan diuretics july 29, 2016 mgmcri
Lecture 2 adithan diuretics july 29, 2016 mgmcri
 
Diuretics
DiureticsDiuretics
Diuretics
 
Drugs modulating cholinesterase enzyme
Drugs modulating cholinesterase enzymeDrugs modulating cholinesterase enzyme
Drugs modulating cholinesterase enzyme
 

Recently uploaded

micro teaching on communication m.sc nursing.pdf
micro teaching on communication m.sc nursing.pdfmicro teaching on communication m.sc nursing.pdf
micro teaching on communication m.sc nursing.pdf
Anurag Sharma
 
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTSARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
Dr. Vinay Pareek
 
CHEMOTHERAPY_RDP_CHAPTER 3_ANTIFUNGAL AGENT.pdf
CHEMOTHERAPY_RDP_CHAPTER 3_ANTIFUNGAL AGENT.pdfCHEMOTHERAPY_RDP_CHAPTER 3_ANTIFUNGAL AGENT.pdf
CHEMOTHERAPY_RDP_CHAPTER 3_ANTIFUNGAL AGENT.pdf
rishi2789
 
Light House Retreats: Plant Medicine Retreat Europe
Light House Retreats: Plant Medicine Retreat EuropeLight House Retreats: Plant Medicine Retreat Europe
Light House Retreats: Plant Medicine Retreat Europe
Lighthouse Retreat
 
Adhd Medication Shortage Uk - trinexpharmacy.com
Adhd Medication Shortage Uk - trinexpharmacy.comAdhd Medication Shortage Uk - trinexpharmacy.com
Adhd Medication Shortage Uk - trinexpharmacy.com
reignlana06
 
Non-respiratory Functions of the Lungs.pdf
Non-respiratory Functions of the Lungs.pdfNon-respiratory Functions of the Lungs.pdf
Non-respiratory Functions of the Lungs.pdf
MedicoseAcademics
 
Hemodialysis: Chapter 4, Dialysate Circuit - Dr.Gawad
Hemodialysis: Chapter 4, Dialysate Circuit - Dr.GawadHemodialysis: Chapter 4, Dialysate Circuit - Dr.Gawad
Hemodialysis: Chapter 4, Dialysate Circuit - Dr.Gawad
NephroTube - Dr.Gawad
 
Top Effective Soaps for Fungal Skin Infections in India
Top Effective Soaps for Fungal Skin Infections in IndiaTop Effective Soaps for Fungal Skin Infections in India
Top Effective Soaps for Fungal Skin Infections in India
SwisschemDerma
 
Top-Vitamin-Supplement-Brands-in-India List
Top-Vitamin-Supplement-Brands-in-India ListTop-Vitamin-Supplement-Brands-in-India List
Top-Vitamin-Supplement-Brands-in-India List
SwisschemDerma
 
Thyroid Gland- Gross Anatomy by Dr. Rabia Inam Gandapore.pptx
Thyroid Gland- Gross Anatomy by Dr. Rabia Inam Gandapore.pptxThyroid Gland- Gross Anatomy by Dr. Rabia Inam Gandapore.pptx
Thyroid Gland- Gross Anatomy by Dr. Rabia Inam Gandapore.pptx
Dr. Rabia Inam Gandapore
 
CHEMOTHERAPY_RDP_CHAPTER 1_ANTI TB DRUGS.pdf
CHEMOTHERAPY_RDP_CHAPTER 1_ANTI TB DRUGS.pdfCHEMOTHERAPY_RDP_CHAPTER 1_ANTI TB DRUGS.pdf
CHEMOTHERAPY_RDP_CHAPTER 1_ANTI TB DRUGS.pdf
rishi2789
 
A Classical Text Review on Basavarajeeyam
A Classical Text Review on BasavarajeeyamA Classical Text Review on Basavarajeeyam
A Classical Text Review on Basavarajeeyam
Dr. Jyothirmai Paindla
 
Integrating Ayurveda into Parkinson’s Management: A Holistic Approach
Integrating Ayurveda into Parkinson’s Management: A Holistic ApproachIntegrating Ayurveda into Parkinson’s Management: A Holistic Approach
Integrating Ayurveda into Parkinson’s Management: A Holistic Approach
Ayurveda ForAll
 
Identification and nursing management of congenital malformations .pptx
Identification and nursing management of congenital malformations .pptxIdentification and nursing management of congenital malformations .pptx
Identification and nursing management of congenital malformations .pptx
MGM SCHOOL/COLLEGE OF NURSING
 
Knee anatomy and clinical tests 2024.pdf
Knee anatomy and clinical tests 2024.pdfKnee anatomy and clinical tests 2024.pdf
Knee anatomy and clinical tests 2024.pdf
vimalpl1234
 
The Best Ayurvedic Antacid Tablets in India
The Best Ayurvedic Antacid Tablets in IndiaThe Best Ayurvedic Antacid Tablets in India
The Best Ayurvedic Antacid Tablets in India
Swastik Ayurveda
 
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptxANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
Swetaba Besh
 
Cardiac Assessment for B.sc Nursing Student.pdf
Cardiac Assessment for B.sc Nursing Student.pdfCardiac Assessment for B.sc Nursing Student.pdf
Cardiac Assessment for B.sc Nursing Student.pdf
shivalingatalekar1
 
Role of Mukta Pishti in the Management of Hyperthyroidism
Role of Mukta Pishti in the Management of HyperthyroidismRole of Mukta Pishti in the Management of Hyperthyroidism
Role of Mukta Pishti in the Management of Hyperthyroidism
Dr. Jyothirmai Paindla
 
Aortic Association CBL Pilot April 19 – 20 Bern
Aortic Association CBL Pilot April 19 – 20 BernAortic Association CBL Pilot April 19 – 20 Bern
Aortic Association CBL Pilot April 19 – 20 Bern
suvadeepdas911
 

Recently uploaded (20)

micro teaching on communication m.sc nursing.pdf
micro teaching on communication m.sc nursing.pdfmicro teaching on communication m.sc nursing.pdf
micro teaching on communication m.sc nursing.pdf
 
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTSARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
 
CHEMOTHERAPY_RDP_CHAPTER 3_ANTIFUNGAL AGENT.pdf
CHEMOTHERAPY_RDP_CHAPTER 3_ANTIFUNGAL AGENT.pdfCHEMOTHERAPY_RDP_CHAPTER 3_ANTIFUNGAL AGENT.pdf
CHEMOTHERAPY_RDP_CHAPTER 3_ANTIFUNGAL AGENT.pdf
 
Light House Retreats: Plant Medicine Retreat Europe
Light House Retreats: Plant Medicine Retreat EuropeLight House Retreats: Plant Medicine Retreat Europe
Light House Retreats: Plant Medicine Retreat Europe
 
Adhd Medication Shortage Uk - trinexpharmacy.com
Adhd Medication Shortage Uk - trinexpharmacy.comAdhd Medication Shortage Uk - trinexpharmacy.com
Adhd Medication Shortage Uk - trinexpharmacy.com
 
Non-respiratory Functions of the Lungs.pdf
Non-respiratory Functions of the Lungs.pdfNon-respiratory Functions of the Lungs.pdf
Non-respiratory Functions of the Lungs.pdf
 
Hemodialysis: Chapter 4, Dialysate Circuit - Dr.Gawad
Hemodialysis: Chapter 4, Dialysate Circuit - Dr.GawadHemodialysis: Chapter 4, Dialysate Circuit - Dr.Gawad
Hemodialysis: Chapter 4, Dialysate Circuit - Dr.Gawad
 
Top Effective Soaps for Fungal Skin Infections in India
Top Effective Soaps for Fungal Skin Infections in IndiaTop Effective Soaps for Fungal Skin Infections in India
Top Effective Soaps for Fungal Skin Infections in India
 
Top-Vitamin-Supplement-Brands-in-India List
Top-Vitamin-Supplement-Brands-in-India ListTop-Vitamin-Supplement-Brands-in-India List
Top-Vitamin-Supplement-Brands-in-India List
 
Thyroid Gland- Gross Anatomy by Dr. Rabia Inam Gandapore.pptx
Thyroid Gland- Gross Anatomy by Dr. Rabia Inam Gandapore.pptxThyroid Gland- Gross Anatomy by Dr. Rabia Inam Gandapore.pptx
Thyroid Gland- Gross Anatomy by Dr. Rabia Inam Gandapore.pptx
 
CHEMOTHERAPY_RDP_CHAPTER 1_ANTI TB DRUGS.pdf
CHEMOTHERAPY_RDP_CHAPTER 1_ANTI TB DRUGS.pdfCHEMOTHERAPY_RDP_CHAPTER 1_ANTI TB DRUGS.pdf
CHEMOTHERAPY_RDP_CHAPTER 1_ANTI TB DRUGS.pdf
 
A Classical Text Review on Basavarajeeyam
A Classical Text Review on BasavarajeeyamA Classical Text Review on Basavarajeeyam
A Classical Text Review on Basavarajeeyam
 
Integrating Ayurveda into Parkinson’s Management: A Holistic Approach
Integrating Ayurveda into Parkinson’s Management: A Holistic ApproachIntegrating Ayurveda into Parkinson’s Management: A Holistic Approach
Integrating Ayurveda into Parkinson’s Management: A Holistic Approach
 
Identification and nursing management of congenital malformations .pptx
Identification and nursing management of congenital malformations .pptxIdentification and nursing management of congenital malformations .pptx
Identification and nursing management of congenital malformations .pptx
 
Knee anatomy and clinical tests 2024.pdf
Knee anatomy and clinical tests 2024.pdfKnee anatomy and clinical tests 2024.pdf
Knee anatomy and clinical tests 2024.pdf
 
The Best Ayurvedic Antacid Tablets in India
The Best Ayurvedic Antacid Tablets in IndiaThe Best Ayurvedic Antacid Tablets in India
The Best Ayurvedic Antacid Tablets in India
 
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptxANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
 
Cardiac Assessment for B.sc Nursing Student.pdf
Cardiac Assessment for B.sc Nursing Student.pdfCardiac Assessment for B.sc Nursing Student.pdf
Cardiac Assessment for B.sc Nursing Student.pdf
 
Role of Mukta Pishti in the Management of Hyperthyroidism
Role of Mukta Pishti in the Management of HyperthyroidismRole of Mukta Pishti in the Management of Hyperthyroidism
Role of Mukta Pishti in the Management of Hyperthyroidism
 
Aortic Association CBL Pilot April 19 – 20 Bern
Aortic Association CBL Pilot April 19 – 20 BernAortic Association CBL Pilot April 19 – 20 Bern
Aortic Association CBL Pilot April 19 – 20 Bern
 

Barbiturate poisoning (pharmacology)

  • 2. BARBITURATE POISONING •It is the poisoning caused due to overdose of barbiturates e.g.. Phenobarbitone. •The lethal dose of 6 – 10 gm is sufficient to cause acute barbiturate poisoning . •Short acting barbiturates are more lethal than short acting ones . •Coma is more Sevier with barbiturate poisoning .
  • 3. CLINICAL MANIFESTATIONS : •Respiratory depression •Slow and shallow breathing •Hypotension •Skin eruptions •Renal failure •Cardiovascular collapse
  • 4. MECHANISM OF ACTION OF POISONING BARBITURATE CAUSING GENERALIZED DEPRESSION DRUG INTERACTS WITH BARBITURATE RECEPTORS LEADS TO INCREASE IN GABA-mediated chloride channel currents CAUSING SYNAPTIC INHIBITION
  • 5. NOTE : while this mechanism takes place ,there also occurs a central sympathetic tone depression leading to hypotension . TREATMENT : The barbiturate poisoning has no specific antidote but there are some measures taken which are as follows : Gastric lavage followed by administration of activated charcoal to prevent further absorption of barbiturates. Maintenance of patent airway , adequate ventilation and oxygen administration General supportive measures like maintenance of blood pressure and body fluid balance . Forced alkaline diuresis with sodium bicarbonate , a diuretic (frusemide) and IV fluids which will help to fasten the excretion of long acting barbiturates .
  • 6. Hemodialysis should be done especially if there is a renal failure.
  • 7. • Forced alkaline diuresis is a procedure commonly used for treatment of barbiturate poisoning. • In this 1.5-2.0 litres of I.V. fluids is administered per hour for 3 hours . • It is done to maintain urine volume up to more than 500 ml per hour. • Urine pH is measured every 30 min and the pH of between 7.5 and 8.5 is maintained. • Alkaline diuresis should be discontinued after 1 hour if the urine flow is less than 3 ml per minute. • Otherwise , it should be continued beyond 3 hours at 1 litre per hour until blood salicylate is reduced to or less than 2.5 m mol per litre.