Pharmacology MCQs
Pharmacology MCQs test knowledge of drug actions, interactions, classifications, pharmacokinetics, pharmacodynamics, and toxicology. Ideal for MDCAT, USMLE, FCPS, and NTS preparation, these quizzes strengthen medical understanding and boost exam performance through targeted practice.
Q: Effect of beta-blockers on the heart
A) Promote vasodilation
B) Enhance conduction
C) Increase heart rate
D) Decrease contractility
Q: First-line drug for anaphylaxis
A) Salbutamol
B) Epinephrine
C) Prednisone
D) Diphenhydramine
Q: Reversible cholinesterase inhibitor
A) Atropine
B) Succinylcholine
C) Pralidoxime
D) Neostigmine
Q: Metformin primarily acts by
A) Blocking glucagon receptors
B) Inhibiting gluconeogenesis
C) Stimulating insulin secretion
D) Promoting glycogenolysis
Q: Drug causing disulfiram-like reaction with alcohol
A) Azithromycin
B) Metronidazole
C) Ceftriaxone
D) Amoxicillin
Q: Preferred route for administering insulin
A) Intravenous
B) Oral
C) Subcutaneous
D) Intramuscular
Q: Side effect associated with chronic aspirin use
A) Gastric ulceration
B) Palpitations
C) Skin rash
D) Hypoglycemia
Q: Atypical antipsychotic with least extrapyramidal effects
A) Haloperidol
B) Fluphenazine
C) Clozapine
D) Chlorpromazine
Q: Laxative increasing fecal bulk
A) Magnesium hydroxide
B) Lactulose
C) Psyllium
D) Bisacodyl
Q: Antifungal targeting ergosterol synthesis
A) Griseofulvin
B) Amphotericin B
C) Fluconazole
D) Nystatin