Pharmacology Flashcards
Metformin SE
GI, lactic acidosis
Sulfonylurea SE
Hypoglycaemia, increase appetite, weight gain, SIADH, cholestasis
Glitazones SE
weight gain, fluid retention, liver dysfunction, fractures
Tamoxifen SE
Menstrual disturbances, hot flushes, VTE, endometrial cancer
Organophosphate Insecticide Poisoning: features
Salivation, lacrimation, urination, defecation, bradycardia, hypotension
Organophosphate Insecticide Poisoning: management
Atropine
Infliximab
Anti-TNF
Used in RA and Crohn’s
Rituximab
Anti-CD20
Used in HNL and RA
Cetuximab
Epidermal growth factor antagonist
Used n metastatic CRC and head and neck cancer
Trastuzumab
HER2 antagonist
Used in metastatic breast cancer
Alemtuzumab
Anti CD52
Used in CLL
Abciximab
Glycroprotein IIb/IIIa antagonist
Prevention of ischaemia in PCI
OKT3
Anti-CD3
Prevention of organ rejection
Pharmacokinetics: Phase 1
Oxidation, reduction and hydrolysis
Pharmacokinetics: Phase 2
Conjugation and excretion
Pharmacokinetics: first pass metabolism
Concentration of a drug is greatly reduce prior to being metabolised requiring higher doses
Pharmacokinetics: zero order
Metabolism is independent of the concentration
First pass metabolism eg (x9)
aspirin, isosorbide dinitrate, GTN, lignocaine, propanolol, verapamil, isoprenaline, testosterone, hydrocortison
Zero order kinetics eg (x4)
Phenytoin, salicylates, heparin, ethanol
Drugs affected by acetylator status
I proposed with very glossy lipstick while testing strawberries
Isosorbide, Propranolol, Verapamil, GTN, Lidocaine, Aspirin, Isoprenanline, Testosterone, Steroids
Enzyme Inducers
Carbemazapine Rifampicin Alcohol Phenytoin Griseofulvin Phenobarbitone Sulphonylureas
Enzyme Inhibitors
Sodium valproate Isoniazide Cimetidine Ketoconazole Fluconazole Alcohol Chloramphenicol Erythromycin Sulfonamides Ciprofloxacin Omeprazole Metronidazole
DRESS Syndrome
Drug rash with eosinophilia and systemic symptoms
Lithium toxicity: precipitations (x6)
Dehydration, renal failure, diuretics, ACE, NSAIDs, metronidazole
Lithium toxicity: features
Coarse tremor, hyperreflexia, acute confusion, polyuria, seizure, coma
Lithium toxicity: management
Fluids, dialysis, bicarbonate
Paracetamol OD: RF
Enzyme inducers, malnourishment
Alpha 1 agonists
Decongestants
Alpha 2 agonists
Glaucoma e.g. brionidine
Alpha antagonists
BPH (tamsulosin)
HTN (doxazosin)
Beta 1 agonists
Inotropes e.g. dobutamine
Beta 1 antagonists
Beta blockers
Beta 2 agonists
Bronchodilators e.g. salbutamol
Beta 2 antagonists
Non-selective beta blockers e.g. propranolol and labetalol
Dopamine agonists
Parkinson’s
Prolactinoma
Dopamine antagonists
Schizophrenia
Anti-emetics
Histamine 1 antagonists
Antihistamines
Histamine 1 antagonists
Antacids
Muscarinic agonists
Glaucoma e.g. pilocarpine
Muscarinic antagonists
Atropine, ipratropium, oxybutynin
Nicotinic agonists
Nicotine, depolarising muscle relaxant (suxamethonium)
Nicotinic antagonists
Non-depolarising muscle relaxants (atracurium)
Serotonin agonists
Triptans
Serotonin antagonists
Anti-emetics (ondansetron)
Inhibits cell wall formation
Penicillins
Cephalosporins
Carbopenems
Vancomycin
Inhibits protein synthesis: 50s sub unit
Macrolides Chlorampehnicol Clindamycin Linezolid Stretogrammins
Inhibits protein synthesis: 30s sub unit
Amintoglycosides
Tetracyclines
Inhibits DNA synthesis
Quinolones
Damages DNA
metronidazole
Inhibits folic acid
Sulphonamides
Trimethoprim