MCQ Collection
Pharmacology MCQs
Practice Pharmacology questions with answers and explanations.
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Correct Answer: C. ACE inhibitor
Explanation:
ACE inhibitor is a drug class that reduces angiotensin II formation and may cause cough or hyperkalaemia.
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Correct Answer: A. Beta blocker
Explanation:
Beta blocker is a drug class that antagonises beta-adrenergic receptors and can reduce heart rate.
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Correct Answer: C. Proton-pump inhibitor
Explanation:
Proton-pump inhibitor is a drug that irreversibly suppresses the gastric hydrogen-potassium ATPase.
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Correct Answer: D. Naloxone
Explanation:
Naloxone is a competitive opioid receptor antagonist used to reverse opioid toxicity.
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Correct Answer: A. Atropine
Explanation:
Atropine is a muscarinic receptor antagonist that can increase heart rate and reduce secretions.
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Correct Answer: C. Warfarin
Explanation:
Warfarin is an oral anticoagulant that inhibits vitamin-K dependent clotting factor synthesis.
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Correct Answer: C. Insulin
Explanation:
Insulin is a peptide hormone drug used to lower blood glucose and treat insulin deficiency.
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Correct Answer: A. Aminoglycoside
Explanation:
Aminoglycoside is an antibiotic class associated with nephrotoxicity and ototoxicity.
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Correct Answer: A. Adverse drug reaction
Explanation:
Adverse drug reaction is a harmful and unintended response to a medicine used at normal doses.
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Correct Answer: A. Agonist
Explanation:
Agonist is a ligand that binds to a receptor and activates it to produce a biological response.
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Correct Answer: A. Competitive antagonist
Explanation:
Competitive antagonist is a reversible receptor blocker whose effect can be overcome by increasing agonist concentration.
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Correct Answer: D. First-pass metabolism
Explanation:
First-pass metabolism is presystemic metabolism that reduces oral bioavailability before a drug reaches systemic circulation.