Subject guide

Pharmacology MCQs for Pharmacy Exams

Drug classes, mechanisms of action, adverse effects and interactions.

Practice Pharmacology MCQs

Pharmacology is the backbone of almost every pharmacy exam in Pakistan. Pharm-D professional papers, PPSC and FPSC pharmacist tests, NTS screening tests and hospital pharmacist selections all draw heavily on it, because every other clinical subject assumes you already know how drugs act.

Most marks are lost on the details: which receptor a drug selects, why one member of a class causes a particular adverse effect, and which drugs interact through enzyme induction or inhibition. These pharmacology MCQs are organised by system so you can learn drugs by class first and then master the exceptions.

Topics covered

What Pharmacology questions on PharmaPrep cover.

Autonomic Nervous System

Cholinergic and adrenergic agonists and antagonists, receptor selectivity and their clinical uses.

Short notes and cheat sheet

Cardiovascular Drugs

Antihypertensives, antianginals, antiarrhythmics, heart failure drugs, anticoagulants and lipid-lowering agents.

Short notes and cheat sheet

CNS Pharmacology

Sedative-hypnotics, antiepileptics, antidepressants, antipsychotics, opioids and drugs for Parkinson's disease.

Short notes and cheat sheet

Antimicrobial Agents

Mechanisms, spectra and characteristic toxicities of antibacterial, antifungal, antiviral and antiprotozoal drugs.

Short notes and cheat sheet

High-yield Pharmacology topics

  • Receptor selectivity of beta blockers and alpha blockers
  • Adverse effects that identify a drug: ACE inhibitor cough, aminoglycoside ototoxicity, isoniazid neuropathy
  • Enzyme inducers and inhibitors and the interactions they cause
  • Antidotes for common poisonings
  • Mechanisms of antidiabetic and antihypertensive drug classes

Exams that test Pharmacology

Sample Pharmacology MCQs

Original practice questions with answers and explanations.

  1. 1Which antihypertensive class commonly causes a dry cough because it prevents bradykinin breakdown?

    • AACE inhibitors
    • BAngiotensin II receptor blockers
    • CCalcium channel blockers
    • DThiazide diuretics
    Show answer and explanation

    Answer: A. ACE inhibitors

    ACE (kininase II) also degrades bradykinin, so ACE inhibitors allow bradykinin to accumulate and cause cough. ARBs block the AT1 receptor without affecting bradykinin, which is why they are used when an ACE inhibitor causes cough.

  2. 2Isoniazid-induced peripheral neuropathy is prevented by co-administration of:

    • AFolic acid
    • BPyridoxine
    • CCyanocobalamin
    • DThiamine
    Show answer and explanation

    Answer: B. Pyridoxine

    Isoniazid increases the excretion of pyridoxine (vitamin B6), and deficiency causes peripheral neuropathy, so pyridoxine is given prophylactically. Folic acid and cyanocobalamin are used for megaloblastic anaemia.

  3. 3Rifampicin reduces the effectiveness of oral contraceptives mainly by:

    • AInducing hepatic cytochrome P450 enzymes
    • BInhibiting hepatic cytochrome P450 enzymes
    • CDisplacing the hormones from plasma proteins
    • DReducing their oral absorption
    Show answer and explanation

    Answer: A. Inducing hepatic cytochrome P450 enzymes

    Rifampicin is a potent inducer of CYP3A4 and other enzymes, accelerating the metabolism of oestrogens and progestogens. Enzyme inhibitors such as ketoconazole have the opposite effect and raise the levels of affected drugs.

Practice all Pharmacology MCQs

Pharmacology FAQs

How should I study pharmacology for pharmacy MCQs?

Learn drugs by class, then note the members that behave differently. For each class, know the mechanism, main uses, characteristic adverse effects and key interactions, and test yourself with MCQs before re-reading.

Which pharmacology topics come up most in recruitment tests?

Autonomic pharmacology, antimicrobials, cardiovascular drugs, CNS drugs, antidiabetic agents and antidotes appear most consistently in pharmacist recruitment tests.

Are explanations included with the pharmacology MCQs?

Yes. Every question has an explanation and a textbook reference, shown once you check your answer.

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