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Pharmacology MCQs

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Pharmacology MCQs

What is the study of pharmacology primarily concerned with?
a) Drug marketing
b) Drug formulation
c) The interaction of drugs with living systems
d) Manufacturing processes of drugs
Answer: c) The interaction of drugs with living systems
Which of the following is a route of drug administration that bypasses the gastrointestinal tract?
a) Oral
b) Sublingual
c) Rectal
d) Intravenous
Answer: d) Intravenous
The term “bioavailability” refers to:
a) The rate and extent to which a drug is absorbed and reaches systemic circulation
b) The ability of a drug to be metabolized
c) The duration of action of a drug
d) The concentration of a drug in the liver
Answer: a) The rate and extent to which a drug is absorbed and reaches systemic circulation
Which of the following is an example of a pharmacokinetic process?
a) Drug-receptor interaction
b) Drug absorption
c) Therapeutic effect
d) Side effect
Answer: b) Drug absorption
What is the main function of the cytochrome P450 enzyme system?
a) Drug excretion
b) Drug metabolism
c) Drug absorption
d) Drug distribution
Answer: b) Drug metabolism
Which of the following terms refers to the specific biological site where a drug acts?
a) Pharmacodynamics
b) Therapeutic index
c) Receptor
d) Efficacy
Answer: c) Receptor
A drug that mimics the action of a natural neurotransmitter at a receptor is called:
a) Antagonist
b) Agonist
c) Inhibitor
d) Blocker
Answer: b) Agonist
Which of the following is the term for the dose of a drug required to produce a therapeutic effect in 50% of the population?
a) Maximum tolerated dose (MTD)
b) Median lethal dose (LD50)
c) Median effective dose (ED50)
d) Minimum inhibitory concentration (MIC)
Answer: c) Median effective dose (ED50)
Which of the following best describes the “therapeutic index” of a drug?
a) The ratio between the toxic dose and the effective dose
b) The speed at which a drug takes effect
c) The duration of drug action
d) The amount of drug required to produce a therapeutic effect
Answer: a) The ratio between the toxic dose and the effective dose
Which of the following is an adverse effect of opioid analgesics?
a) Hypertension
b) Respiratory depression
c) Hyperglycemia
d) Increased heart rate
Answer: b) Respiratory depression
Which of the following is an example of a nonsteroidal anti-inflammatory drug (NSAID)?
a) Aspirin
b) Acetaminophen
c) Morphine
d) Codeine
Answer: a) Aspirin
What is the mechanism of action of beta-blockers?
a) Blockage of alpha-adrenergic receptors
b) Inhibition of angiotensin-converting enzyme
c) Blockage of beta-adrenergic receptors
d) Stimulation of beta-adrenergic receptors
Answer: c) Blockage of beta-adrenergic receptors
Which of the following drugs is used to treat hypertension?
a) Lisinopril
b) Diazepam
c) Paracetamol
d) Ciprofloxacin
Answer: a) Lisinopril
Which of the following is a common side effect of antihistamines?
a) Diarrhea
b) Drowsiness
c) Hypertension
d) Dry cough
Answer: b) Drowsiness
Which of the following drugs is used to treat Parkinson’s disease?
a) L-Dopa (Levodopa)
b) Diazepam
c) Warfarin
d) Atenolol
Answer: a) L-Dopa (Levodopa)
Which class of drugs is primarily used as an anti-inflammatory agent?
a) Antibiotics
b) NSAIDs
c) Antihypertensives
d) Antivirals
Answer: b) NSAIDs
Which of the following drugs is an anticoagulant?
a) Warfarin
b) Metformin
c) Atenolol
d) Ibuprofen
Answer: a) Warfarin
Which of the following is a proton pump inhibitor (PPI)?
a) Omeprazole
b) Ranitidine
c) Metformin
d) Simvastatin
Answer: a) Omeprazole
Which of the following drugs is used to lower cholesterol levels?
a) Atorvastatin
b) Furosemide
c) Metoprolol
d) Aspirin
Answer: a) Atorvastatin
Which of the following is a loop diuretic?
a) Furosemide
b) Spironolactone
c) Hydrochlorothiazide
d) Acetazolamide
Answer: a) Furosemide
Which of the following is a side effect commonly associated with ACE inhibitors?
a) Persistent dry cough
b) Bradycardia
c) Constipation
d) Weight gain
Answer: a) Persistent dry cough
What is the primary action of sulfonylureas in the treatment of diabetes?
a) Decrease glucose absorption in the intestines
b) Increase insulin secretion from the pancreas
c) Increase glucose uptake by muscles
d) Inhibit glucose production in the liver
Answer: b) Increase insulin secretion from the pancreas
Which of the following is an antibiotic belonging to the penicillin class?
a) Amoxicillin
b) Ciprofloxacin
c) Azithromycin
d) Doxycycline
Answer: a) Amoxicillin
Which of the following drugs is used in the treatment of tuberculosis?
a) Rifampicin
b) Amoxicillin
c) Ciprofloxacin
d) Metronidazole
Answer: a) Rifampicin
Which of the following is a common side effect of corticosteroids?
a) Weight loss
b) Hyperglycemia
c) Bradycardia
d) Hypotension
Answer: b) Hyperglycemia
Which of the following drugs is commonly used to treat anxiety disorders?
a) Diazepam
b) Aspirin
c) Lisinopril
d) Atorvastatin
Answer: a) Diazepam
Which drug is classified as an antipsychotic?
a) Haloperidol
b) Diazepam
c) Metformin
d) Atenolol
Answer: a) Haloperidol
Which of the following drugs is used as an antiepileptic?
a) Phenytoin
b) Paracetamol
c) Lisinopril
d) Atorvastatin
Answer: a) Phenytoin
What is the main action of benzodiazepines?
a) Sedative and anxiolytic
b) Antihypertensive
c) Anti-inflammatory
d) Antimicrobial
Answer: a) Sedative and anxiolytic
Which of the following is a calcium channel blocker?
a) Amlodipine
b) Atenolol
c) Metformin
d) Furosemide
Answer: a) Amlodipine
Which of the following drugs is used to treat peptic ulcer disease?
a) Omeprazole
b) Paracetamol
c) Furosemide
d) Atorvastatin
Answer: a) Omeprazole
Which of the following is a macrolide antibiotic?
a) Azithromycin
b) Ciprofloxacin
c) Doxycycline
d) Metronidazole
Answer: a) Azithromycin
Which of the following is a common side effect of statins?
a) Muscle pain
b) Hypertension
c) Hyperglycemia
d) Constipation
Answer: a) Muscle pain
Which of the following drugs is used to treat gout?
a) Allopurinol
b) Lisinopril
c) Metformin
d) Diazepam
Answer: a) Allopurinol
What is the mechanism of action of metformin?
a) Inhibits hepatic glucose production
b) Increases insulin secretion
c) Delays glucose absorption in the intestines
d) Stimulates insulin receptor sensitivity
Answer: a) Inhibits hepatic glucose production
Which of the following drugs is an H2 receptor antagonist?
a) Ranitidine
b) Omeprazole
c) Atorvastatin
d) Metformin
Answer: a) Ranitidine
Which of the following is used to treat asthma?
a) Salbutamol
b) Atenolol
c) Furosemide
d) Warfarin
Answer: a) Salbutamol
Which of the following is an antifungal medication?
a) Fluconazole
b) Ciprofloxacin
c) Metronidazole
d) Amoxicillin
Answer: a) Fluconazole
Which drug is used as an antiemetic?
a) Ondansetron
b) Furosemide
c) Lisinopril
d) Metformin
Answer: a) Ondansetron
Which of the following is an ACE inhibitor?
a) Enalapril
b) Atenolol
c) Amlodipine
d) Furosemide
Answer: a) Enalapril
Which of the following is an opioid analgesic?
a) Morphine
b) Aspirin
c) Ibuprofen
d) Paracetamol
Answer: a) Morphine
Which of the following is a serotonin-norepinephrine reuptake inhibitor (SNRI)?
a) Venlafaxine
b) Fluoxetine
c) Diazepam
d) Amitriptyline
Answer: a) Venlafaxine
Which of the following drugs is commonly used to treat heart failure?
a) Digoxin
b) Warfarin
c) Ciprofloxacin
d) Lisinopril
Answer: a) Digoxin
Which of the following drugs is a bronchodilator?
a) Theophylline
b) Metformin
c) Atorvastatin
d) Lisinopril
Answer: a) Theophylline
Which of the following is a selective serotonin reuptake inhibitor (SSRI)?
a) Fluoxetine
b) Amitriptyline
c) Diazepam
d) Venlafaxine
Answer: a) Fluoxetine
Which of the following drugs is used in the management of bipolar disorder?
a) Lithium
b) Haloperidol
c) Diazepam
d) Metformin
Answer: a) Lithium
Which of the following drugs is used to prevent blood clots?
a) Clopidogrel
b) Atorvastatin
c) Omeprazole
d) Metformin
Answer: a) Clopidogrel
Which of the following drugs is used as an antipyretic?
a) Paracetamol
b) Diazepam
c) Omeprazole
d) Metformin
Answer: a) Paracetamol
Which of the following drugs is used to treat hyperthyroidism?
a) Methimazole
b) Levothyroxine
c) Metformin
d) Omeprazole
Answer: a) Methimazole
Which of the following is a beta-lactam antibiotic?
a) Amoxicillin
b) Ciprofloxacin
c) Doxycycline
d) Metronidazole
Answer: a) Amoxicillin
Which of the following is an antiarrhythmic drug?
a) Amiodarone
b) Furosemide
c) Metformin
d) Warfarin
Answer: a) Amiodarone
Which of the following drugs is used as an antimalarial?
a) Chloroquine
b) Ciprofloxacin
c) Amoxicillin
d) Omeprazole
Answer: a) Chloroquine