Pharmacology MCQs
Pharmacology MCQs help learners understand the actions, interactions, uses, and side effects of various drugs. These questions cover pharmacokinetics, pharmacodynamics, drug classifications, and toxicology. Practicing them aids in mastering this crucial medical subject and performing well in exams such as MDCAT, USMLE, FCPS, and NTS.
Q: Adverse effect commonly associated with aminoglycosides
A) Ototoxicity
B) Hepatotoxicity
C) Hyperkalemia
D) Bone marrow suppression
Q: Primary action of loop diuretics
A) Aldosterone receptor blockade
B) Inhibition of Na⁺-K⁺-2Cl⁻ transporter in thick ascending limb
C) Sodium reabsorption in distal tubule
D) Inhibition of carbonic anhydrase
Q: Pharmacological classification of omeprazole
A) Antacid
B) H2 blocker
C) Prokinetic agent
D) Proton pump inhibitor
Q: Use of atropine in organophosphate poisoning
A) Activates muscarinic receptors
B) Blocks muscarinic receptors
C) Stimulates nicotinic receptors
D) Enhances acetylcholine
Q: Drug of choice for status epilepticus
A) Carbamazepine
B) Diazepam
C) Ethosuximide
D) Lamotrigine
Q: Therapeutic use of methotrexate
A) Parkinsonism
B) Rheumatoid arthritis
C) Hyperthyroidism
D) Diabetes mellitus
Q: Cisplatin is most toxic to the
A) Bone marrow
B) Kidneys
C) Liver
D) Lungs
Q: Drug used to treat bradycardia
A) Digoxin
B) Labetalol
C) Propranolol
D) Atropine
Q: Mechanism of action of sulfonamides
A) Inhibit DNA gyrase
B) Bind ribosomal subunit
C) Inhibit cell wall synthesis
D) Block folic acid synthesis
Q: Adverse effect of chronic corticosteroid therapy
A) Hyperkalemia
B) Bradycardia
C) Osteoporosis
D) Hypoglycemia