Pharmacology Flashcards
What is meant by a Type A drug reaction?
Augmented - dose dependent, frequent, predictable, explained by drug pharmacology
What is meant by a Type B drug reaction?
Bizarre - dose independent, rare, not explained by drug pharmacology
What is meant by a Type C drug reaction?
Chronic - dose and time dependent, long-term use
What is meant by a Type D drug reaction?
Delayed - very rare
What is meant by a Type E drug reaction?
End of treatment - due to withdrawal/relapse
What is the mechanism of cyclopentolate?
M1 muscarinic ACh antagonist
What is the main adverse effect of dobutamine?
Risk of rapid ventricular response
What is the MOA of Omeprazole?
H+/K+ATPase pump inhibitor
What are the topical steroids in order of potency?
Hydrocortisone 0.1% < Eumovate < Betnovate < Dermovate
Which anti-epileptic can cause ataxia?
Lamotrigine
What is the mechanism of methylphenidate?
Dopamine and NE reuptake inhibitor
What is the main side effect of protease inhibitors?
Dyslipidaemia
How many half lives does it take for drug elimination?
4-5 half lives
What is an important long term side effect of cyclosporin?
Chronic interstitial nephritis
Which electrolyte abnormality can be associated with salbutamol use?
Hypokalaemja
What is the mechanism of Fomepizole?
Alcohol dehydrogenase inhibitor
What is the mechanism of Trimethoprim?
interferes with DNA synthesis by inhibiting dihydrofolate reductase
What is the mechanism of inflixamab?
TNF-alpha inhibitor
What is the MOA of loop diuretics?
Inhibits N+/K+/Cl- pump in thick ascending loop of Henle
What is the MOA of thiazide diuretics?
Inhibits Na/Cl pump in DCT
What is the mechanism of ranitidine?
H2 antagonist
What is the MOA of anti-histamines?
H1 antagonist`
Cephalosporins mainly cover which kind of organisms?
Gram negative
What is the MOA of milrinone?
PDE-III inhibitor
What is the MOA of LMWHs?
Anti-thrombin dependent inactivation of Factor Xa
Which antibiotics bind to the 50s sub-unit?
Chloramphenicol, macrolides, clindamycin
Which renal complication is associated with acetazolamide?
Acute interstitial nephritis (AIN)
What is the mechanism of NAC?
Increases glutathione production by providing cysteine
What is the target for toculizumab?
IL-6
What is the MOA of Gentamicin?
Binds to 30s sub-unit to inhibit protein synthesis
What is the MOA of adenosine?
Acts on A1 receptors in AV node to reduce conduction velocity
What is the MOA of amiodarone?
K+ channel blocker
Which class of anti-depressants increase the risk of GI bleeding?
SSRIs
What is the most common side effect of quinine?
Tinnitus
Which steroid medication has least mineralocorticoid effect?
Dexamethasone
Why is ceftriaxone avoided in neonates?
Increases bilirubin
Which anti-TB medication is associated with peripheral neuropathy?
Isoniazid
What is the mechanism of sumatriptan?
5HT-1D receptor agonist resulting in vasoconstriction of cranial blood vessels
Which anti-epileptics may interfere with oral contraceptives?
Enzyme inducers - phenytoin, carbemazepine, topiramate
What is the MOA of azathioprine in immunosuppression?
Inhibition of purine nucleoside synthesis
What is the MOA of anankinra?
IL-1 inhibitor
What is the MOA of adalimumab?
Anti-TNF-alpha
What class of antibiotics does Vancomycin belong to?
Glycopeptide
What class of antibiotics does Gentamicin belong to?
Aminoglycosides
What is the MOA of Atomoxetine?
Selective NE re-uptake inhibitor
Which type of insulin are found in insulin pumps?
Short-acting
Which monoclonal antibody may be used for asthma?
Omalizumab
Which monoclonal antibody may be used for ITP?
Rituxamab
Which vitamin should be co-prescribed with orlistat?
Vitamin D