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: Statins reduce cholesterol levels by inhibiting
A) Lipase activity
B) Bile production
C) Insulin release
D) HMG-CoA reductase
✅ Correct Answer: D
Explanation: Statins block the rate-limiting enzyme in cholesterol synthesis.
Q: Glucocorticoids suppress inflammation by reducing
A) Cytokine production
B) Heart rate
C) Platelet count
D) Iron absorption
✅ Correct Answer: A
Explanation: These hormones decrease inflammatory signals like interleukins and TNF.
Q: Phenytoin is mainly used for the management of
A) Seizures
B) Hypertension
C) Tuberculosis
D) Ulcers
✅ Correct Answer: A
Explanation: Phenytoin stabilizes neuronal membranes to prevent seizure activity.
Q: The antidote for organophosphate poisoning is
A) Naloxone
B) Heparin
C) Diazepam
D) Atropine
✅ Correct Answer: D
Explanation: Atropine blocks muscarinic effects of acetylcholine excess.
Q: Bisphosphonates help prevent
A) Hair loss
B) Bone resorption
C) Muscle fatigue
D) Blood clotting
✅ Correct Answer: B
Explanation: These drugs inhibit osteoclast-mediated bone breakdown.