MCQ on Drug Classifications and Therapeutic Uses

🟢 Easy Level (1–20)

  1. Which class of drugs is used to reduce fever?
    a) Antibiotics
    b) Antipyretics ✔️
    c) Antiemetics
    d) Anticoagulants
    Explanation: Antipyretics reduce body temperature.
  2. Ibuprofen is classified as a:
    a) NSAID ✔️
    b) Antiviral
    c) Antidepressant
    d) Anticoagulant
    Explanation: Ibuprofen is a Non-Steroidal Anti-Inflammatory Drug.
  3. Antibiotics are used to treat:
    a) Viral infections
    b) Bacterial infections ✔️
    c) Cancer
    d) Allergies
    Explanation: Antibiotics target bacteria.
  4. Paracetamol is used primarily as a:
    a) Sedative
    b) Analgesic and antipyretic ✔️
    c) Antibiotic
    d) Antiviral
    Explanation: Paracetamol relieves pain and fever.
  5. Omeprazole belongs to which class?
    a) Antacid
    b) Proton pump inhibitor ✔️
    c) Laxative
    d) NSAID
    Explanation: Omeprazole reduces stomach acid production.
  6. Which class does insulin belong to?
    a) Beta-blockers
    b) Hormones ✔️
    c) Antibiotics
    d) Antihistamines
    Explanation: Insulin is a hormone for glucose regulation.
  7. Antihypertensive drugs are used to treat:
    a) High blood pressure ✔️
    b) Diabetes
    c) Fever
    d) Cough
    Explanation: These drugs lower blood pressure.
  8. Loratadine is classified as:
    a) Antidepressant
    b) Antihistamine ✔️
    c) Antibiotic
    d) Antacid
    Explanation: Loratadine is used for allergies.
  9. Which drug is used to lower cholesterol?
    a) Metformin
    b) Atorvastatin ✔️
    c) Paracetamol
    d) Amlodipine
    Explanation: Atorvastatin is a statin drug.
  10. Antiemetics are used to control:
    a) Diarrhea
    b) Nausea and vomiting ✔️
    c) Blood pressure
    d) Heart rate
    Explanation: Antiemetics prevent or treat nausea.
  11. Salbutamol is primarily used for:
    a) Hypertension
    b) Asthma ✔️
    c) Fever
    d) Insomnia
    Explanation: It is a bronchodilator.
  12. Diuretics help in:
    a) Removing excess fluid ✔️
    b) Gaining weight
    c) Improving vision
    d) Increasing appetite
    Explanation: Diuretics promote urine production.
  13. Which is an example of an antifungal drug?
    a) Ciprofloxacin
    b) Amoxicillin
    c) Fluconazole ✔️
    d) Loratadine
    Explanation: Fluconazole treats fungal infections.
  14. Which drug class does metformin belong to?
    a) Beta-blocker
    b) Antidiabetic ✔️
    c) Diuretic
    d) Antipsychotic
    Explanation: Metformin is used in Type 2 diabetes.
  15. Anticoagulants are used to:
    a) Increase clotting
    b) Prevent clot formation ✔️
    c) Lower blood sugar
    d) Treat asthma
    Explanation: Anticoagulants prevent thrombosis.
  16. Antitussives are used for:
    a) Fever
    b) Cough suppression ✔️
    c) Headache
    d) Indigestion
    Explanation: They suppress coughing.
  17. Which class does ranitidine belong to?
    a) H2 receptor antagonists ✔️
    b) Antipyretics
    c) Laxatives
    d) Beta-blockers
    Explanation: Ranitidine reduces stomach acid.
  18. SSRIs are mainly used to treat:
    a) Hypertension
    b) Depression ✔️
    c) Diabetes
    d) Fungal infections
    Explanation: SSRIs are antidepressants.
  19. Beta-blockers are used in:
    a) Hypertension and heart conditions ✔️
    b) Skin infections
    c) Fungal infections
    d) Seizures
    Explanation: They lower heart rate and blood pressure.
  20. Laxatives are used to:
    a) Reduce blood sugar
    b) Relieve constipation ✔️
    c) Treat fever
    d) Increase appetite
    Explanation: Laxatives promote bowel movement.

🟡 Moderate Level (21–40)

  1. A drug classified as an antiplatelet is:
    a) Warfarin
    b) Aspirin ✔️
    c) Furosemide
    d) Cimetidine
    Explanation: Aspirin prevents platelet aggregation.
  2. ACE inhibitors are used to:
    a) Treat hypertension ✔️
    b) Stimulate appetite
    c) Relieve pain
    d) Cure infections
    Explanation: ACE inhibitors relax blood vessels.
  3. Which drug is a calcium channel blocker?
    a) Metformin
    b) Amlodipine ✔️
    c) Aspirin
    d) Digoxin
    Explanation: Amlodipine relaxes heart muscles.
  4. Which of the following is a bronchodilator?
    a) Theophylline ✔️
    b) Lisinopril
    c) Omeprazole
    d) Chlorpheniramine
    Explanation: Theophylline helps open airways.
  5. Diazepam is classified as a:
    a) Benzodiazepine ✔️
    b) NSAID
    c) Antibiotic
    d) Antihypertensive
    Explanation: It has anxiolytic and sedative effects.
  6. Which of the following is an opioid analgesic?
    a) Ibuprofen
    b) Morphine ✔️
    c) Loratadine
    d) Aspirin
    Explanation: Morphine is a potent painkiller.
  7. Antipsychotics are mainly used to treat:
    a) Schizophrenia ✔️
    b) Hypertension
    c) Allergies
    d) Diabetes
    Explanation: These affect dopamine and serotonin pathways.
  8. Which drug is used as a muscle relaxant?
    a) Furosemide
    b) Baclofen ✔️
    c) Atenolol
    d) Metformin
    Explanation: Baclofen reduces muscle spasticity.
  9. Anthelmintics are used to treat:
    a) Parasitic worm infections ✔️
    b) Allergies
    c) High blood pressure
    d) Fungal infections
    Explanation: Anthelmintics expel parasitic worms.
  10. Which is used for gout treatment?
    a) Ibuprofen
    b) Allopurinol
    c) Colchicine ✔️
    d) Metronidazole
    Explanation: Colchicine reduces inflammation in gout.
  11. Which one is an antiemetic?
    a) Amoxicillin
    b) Ondansetron ✔️
    c) Acetaminophen
    d) Captopril
    Explanation: Used to prevent nausea and vomiting.
  12. Which is a typical antipsychotic?
    a) Fluoxetine
    b) Haloperidol ✔️
    c) Cimetidine
    d) Atenolol
    Explanation: Haloperidol is used for psychotic disorders.
  13. Which of the following is a mood stabilizer?
    a) Diazepam
    b) Sertraline
    c) Lithium ✔️
    d) Aspirin
    Explanation: Lithium stabilizes mood in bipolar disorder.
  14. Which is an example of a proton pump inhibitor?
    a) Ranitidine
    b) Famotidine
    c) Pantoprazole ✔️
    d) Sucralfate
    Explanation: PPIs suppress gastric acid secretion.
  15. Antineoplastic drugs are used in:
    a) Infections
    b) Ulcers
    c) Cancer treatment ✔️
    d) Constipation
    Explanation: These inhibit or prevent tumor growth.
  16. Which is an alpha-blocker?
    a) Metoprolol
    b) Prazosin ✔️
    c) Furosemide
    d) Digoxin
    Explanation: Prazosin is used in hypertension and BPH.
  17. Antiarrhythmic drugs are used to treat:
    a) Irregular heart rhythms ✔️
    b) Asthma
    c) Depression
    d) Constipation
    Explanation: They correct abnormal heartbeats.
  18. Which drug class suppresses cough reflex?
    a) Antihistamines
    b) Antitussives ✔️
    c) Antacids
    d) Antidepressants
    Explanation: Used in dry cough management.
  19. Which drug reduces anxiety?
    a) Acetaminophen
    b) Ranitidine
    c) Alprazolam ✔️
    d) Aspirin
    Explanation: Alprazolam is an anxiolytic.
  20. Which drug is used in tuberculosis?
    a) Ciprofloxacin
    b) Rifampicin ✔️
    c) Amoxicillin
    d) Gentamicin
    Explanation: Rifampicin is a first-line anti-TB drug.

🔴 Hard Level (41–50)

  1. Which antidiabetic agent acts by increasing insulin sensitivity?
    a) Insulin
    b) Glimepiride
    c) Pioglitazone ✔️
    d) Acarbose
    Explanation: Pioglitazone is a thiazolidinedione.
  2. Which drug is a selective beta-1 blocker?
    a) Propranolol
    b) Atenolol ✔️
    c) Carvedilol
    d) Labetalol
    Explanation: Atenolol is cardioselective.
  3. Which antiepileptic enhances GABA activity?
    a) Phenytoin
    b) Carbamazepine
    c) Valproic acid ✔️
    d) Ethosuximide
    Explanation: Valproic acid increases GABA concentration.
  4. Which drug inhibits DNA synthesis in bacteria?
    a) Ciprofloxacin ✔️
    b) Erythromycin
    c) Doxycycline
    d) Penicillin
    Explanation: A fluoroquinolone antibiotic.
  5. Which class of drugs is used in Alzheimer’s disease?
    a) SSRIs
    b) Cholinesterase inhibitors ✔️
    c) Antipsychotics
    d) Diuretics
    Explanation: Increases acetylcholine levels.
  6. Which of the following is a schedule H drug in India?
    a) Antibiotics ✔️
    b) Vitamin C
    c) Paracetamol
    d) Antacids
    Explanation: Schedule H drugs require prescription.
  7. Which drug has anti-inflammatory and immunosuppressive action?
    a) Ibuprofen
    b) Prednisolone ✔️
    c) Loratadine
    d) Metformin
    Explanation: Corticosteroid used for many inflammatory diseases.
  8. Which drug inhibits angiotensin II receptor?
    a) Lisinopril
    b) Amlodipine
    c) Losartan ✔️
    d) Atenolol
    Explanation: ARB used in hypertension.
  9. Which drug class is used in treating malaria?
    a) Antivirals
    b) Antimalarials ✔️
    c) Antifungals
    d) NSAIDs
    Explanation: Includes chloroquine, artemisinin.
  10. Which drug is used to prevent blood clots in atrial fibrillation?
    a) Aspirin
    b) Warfarin ✔️
    c) Omeprazole
    d) Simvastatin
    Explanation: Anticoagulant to prevent stroke.