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: Naloxone is used to reverse
A) Opioid overdose
B) Asthma attack
C) Hyperglycemia
D) Hypertension
Q: Diazepam enhances the action of
A) Dopamine
B) Acetylcholine
C) GABA
D) Serotonin
Q: Antacids relieve heartburn by neutralizing
A) Hormones
B) Gastric acid
C) Enzymes
D) Lipids
Q: The bioavailability of oral drugs is influenced by
A) Light exposure
B) First-pass metabolism
C) Skin temperature
D) Injection technique
Q: Drugs with narrow therapeutic index require
A) Rare usage
B) Close monitoring
C) No prescription
D) High dosage