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Pharmacology and Therapeutics

1,643 Questions

Engage with critical pharmacology and therapeutics questions covering drug classifications and therapeutic mechanisms. Topics include chemical absorption, medication formulations, and pharmacogenomics. This collection is useful for students preparing for medical entrance, nursing, and science competitive examinations.

Chemical absorption routesDrug formulation typesMedication mechanismsEnzyme inhibitorsPharmacogenomic tests

Pharmacology and Therapeutics Questions

Multiple choice

Which of the following is NOT a type of adverse drug reaction?

  1. Allergic reaction

  2. Idiosyncratic reaction

  3. Dose-dependent reaction

  4. Teratogenic reaction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Teratogenic reactions are not a type of adverse drug reaction, but rather a type of birth defect caused by exposure to a drug during pregnancy.

Multiple choice

Which of the following is NOT a type of drug dosage form?

  1. Tablet

  2. Capsule

  3. Injection

  4. Suppository
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Injection is not a type of drug dosage form, but rather a route of drug administration.

Multiple choice

Which of the following is NOT a type of drug metabolism enzyme?

  1. Cytochrome P450

  2. UDP-glucuronosyltransferases

  3. Glutathione S-transferases

  4. Acetyltransferases
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Acetyltransferases are not a type of drug metabolism enzyme, but rather a type of enzyme that catalyzes the transfer of an acetyl group from one molecule to another.

Multiple choice

Which of the following is a beta-blocker commonly used to treat hypertension and angina pectoris?

  1. Atenolol

  2. Digoxin

  3. Amiodarone

  4. Verapamil
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Atenolol is a beta-blocker that is commonly used to treat hypertension and angina pectoris. It works by blocking the effects of epinephrine and norepinephrine on beta-adrenergic receptors in the heart and blood vessels, leading to a decrease in heart rate, blood pressure, and myocardial oxygen demand.

Multiple choice

Which of the following is an ACE inhibitor commonly used to treat hypertension and heart failure?

  1. Lisinopril

  2. Metoprolol

  3. Diltiazem

  4. Warfarin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lisinopril is an ACE inhibitor that is commonly used to treat hypertension and heart failure. It works by inhibiting the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. This leads to a decrease in blood pressure and an improvement in heart function.

Multiple choice

Which of the following is a calcium channel blocker commonly used to treat hypertension and angina pectoris?

  1. Amlodipine

  2. Hydrochlorothiazide

  3. Digoxin

  4. Atenolol
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amlodipine is a calcium channel blocker that is commonly used to treat hypertension and angina pectoris. It works by blocking the influx of calcium ions into the heart and blood vessel cells, leading to a decrease in heart rate, blood pressure, and myocardial oxygen demand.

Multiple choice

Which of the following is a diuretic commonly used to treat hypertension?

  1. Hydrochlorothiazide

  2. Metoprolol

  3. Amiodarone

  4. Warfarin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydrochlorothiazide is a diuretic that is commonly used to treat hypertension. It works by increasing the excretion of sodium and water from the body, leading to a decrease in blood volume and blood pressure.

Multiple choice

Which of the following is an antiarrhythmic drug commonly used to treat atrial fibrillation and atrial flutter?

  1. Amiodarone

  2. Digoxin

  3. Verapamil

  4. Lisinopril
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amiodarone is an antiarrhythmic drug that is commonly used to treat atrial fibrillation and atrial flutter. It works by prolonging the action potential duration and refractory period of the heart, making it less susceptible to arrhythmias.

Multiple choice

Which of the following is a digitalis glycoside commonly used to treat heart failure and atrial fibrillation?

  1. Digoxin

  2. Metoprolol

  3. Diltiazem

  4. Warfarin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Digoxin is a digitalis glycoside that is commonly used to treat heart failure and atrial fibrillation. It works by inhibiting the sodium-potassium pump in the heart, leading to an increase in intracellular calcium and a stronger contraction of the heart muscle.

Multiple choice

Which of the following is an anticoagulant commonly used to prevent and treat blood clots?

  1. Warfarin

  2. Heparin

  3. Aspirin

  4. Clopidogrel
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Warfarin is an anticoagulant that is commonly used to prevent and treat blood clots. It works by inhibiting the synthesis of vitamin K-dependent clotting factors, leading to a decrease in the blood's ability to clot.

Multiple choice

Which of the following is an antiplatelet drug commonly used to prevent and treat blood clots?

  1. Aspirin

  2. Heparin

  3. Warfarin

  4. Clopidogrel
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Aspirin is an antiplatelet drug that is commonly used to prevent and treat blood clots. It works by inhibiting the aggregation of platelets, which are small blood cells that play a role in blood clotting.

Multiple choice

Which of the following is a lipid-lowering drug commonly used to treat hyperlipidemia?

  1. Atorvastatin

  2. Metformin

  3. Amiodarone

  4. Lisinopril
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Atorvastatin is a lipid-lowering drug that is commonly used to treat hyperlipidemia. It works by inhibiting the enzyme HMG-CoA reductase, which is involved in the synthesis of cholesterol in the liver. This leads to a decrease in the levels of LDL cholesterol and triglycerides in the blood.

Multiple choice

Which of the following is a biguanide commonly used to treat type 2 diabetes?

  1. Metformin

  2. Insulin

  3. Glipizide

  4. Pioglitazone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metformin is a biguanide that is commonly used to treat type 2 diabetes. It works by decreasing the production of glucose in the liver and improving the sensitivity of cells to insulin, leading to a decrease in blood glucose levels.

Multiple choice

Which of the following is a sulfonylurea commonly used to treat type 2 diabetes?

  1. Glipizide

  2. Metformin

  3. Insulin

  4. Pioglitazone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Glipizide is a sulfonylurea that is commonly used to treat type 2 diabetes. It works by stimulating the release of insulin from the pancreas, leading to a decrease in blood glucose levels.

Multiple choice

Which of the following is a thiazolidinedione commonly used to treat type 2 diabetes?

  1. Pioglitazone

  2. Metformin

  3. Insulin

  4. Glipizide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pioglitazone is a thiazolidinedione that is commonly used to treat type 2 diabetes. It works by improving the sensitivity of cells to insulin, leading to a decrease in blood glucose levels.