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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

What is the mechanism of action of leflunomide?

  1. Inhibits dihydroorotate dehydrogenase

  2. Inhibits purine synthesis

  3. Inhibits DNA synthesis

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Leflunomide inhibits dihydroorotate dehydrogenase, an enzyme that is essential for pyrimidine synthesis.

Multiple choice

What is the mechanism of action of mycophenolate mofetil?

  1. Inhibits inosine monophosphate dehydrogenase

  2. Inhibits purine synthesis

  3. Inhibits DNA synthesis

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mycophenolate mofetil inhibits inosine monophosphate dehydrogenase, an enzyme that is essential for guanine synthesis.

Multiple choice

Which of the following is a side effect of mycophenolate mofetil?

  1. Myelosuppression

  2. Gastrointestinal upset

  3. Hepatotoxicity

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mycophenolate mofetil can cause myelosuppression, gastrointestinal upset, and hepatotoxicity.

Multiple choice

What are the medications used to treat angina?

  1. Nitroglycerin

  2. Beta-blockers

  3. Calcium channel blockers

  4. Statins

  5. Aspirin

  6. All of the above
Reveal answer Fill a bubble to check yourself
F Correct answer
Explanation

The medications used to treat angina include nitroglycerin, beta-blockers, calcium channel blockers, statins, and aspirin.

Multiple choice

What is the surgery used to treat angina?

  1. Coronary artery bypass grafting (CABG)

  2. Percutaneous coronary intervention (PCI)

  3. Both of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The surgery used to treat angina is coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI).

Multiple choice

Which of the following medications can cause tearing as a side effect?

  1. Antidepressants

  2. Antihistamines

  3. Decongestants

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Antidepressants, antihistamines, and decongestants can all cause tearing as a side effect. This is because these medications can affect the production or drainage of tears.

Multiple choice

What is the recommended treatment for tearing caused by allergies?

  1. Antihistamines

  2. Decongestants

  3. Nasal irrigation

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The recommended treatment for tearing caused by allergies typically involves a combination of antihistamines, decongestants, and nasal irrigation. These treatments help to reduce inflammation, relieve nasal congestion, and clear allergens from the nasal passages.

Multiple choice

What is the most commonly used illicit drug in India?

  1. Cannabis

  2. Opium

  3. Heroin

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

Cannabis is the most commonly used illicit drug in India, with an estimated 2.8% of adults reporting cannabis use in the past year.

Multiple choice

What is the most common mode of substance administration in India?

  1. Oral

  2. Inhalation

  3. Injection

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

Oral administration is the most common mode of substance administration in India, accounting for approximately 80% of all substance use.

Multiple choice

What is the primary psychoactive compound found in coffee?

  1. Caffeine

  2. Theobromine

  3. Theophylline

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

Caffeine is a central nervous system stimulant that is found in coffee, tea, and other plants. It is the primary psychoactive compound in coffee and is responsible for its energizing effects.

Multiple choice

What is the primary active compound found in turmeric, responsible for its anti-inflammatory and antioxidant properties?

  1. Curcumin

  2. Gingerol

  3. Quercetin

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

Curcumin is the main bioactive compound in turmeric, known for its potent anti-inflammatory and antioxidant effects.

Multiple choice

Which of the following medications is commonly used to prevent acute nausea and vomiting?

  1. Ondansetron

  2. Metoclopramide

  3. Prochlorperazine

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

Ondansetron is a commonly used medication for preventing acute nausea and vomiting. Metoclopramide, prochlorperazine, and granisetron are also used for this purpose.

Multiple choice

What is the most common type of constipation experienced by cancer patients?

  1. Opioid-induced constipation

  2. Mechanical constipation

  3. Functional constipation

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

Opioid-induced constipation is the most common type of constipation experienced by cancer patients. It is caused by the use of opioid pain medications.

Multiple choice

Which of the following medications is commonly used to treat opioid-induced constipation?

  1. Lactulose

  2. Polyethylene glycol

  3. Bisacodyl

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

Lactulose is a commonly used medication for treating opioid-induced constipation. Polyethylene glycol, bisacodyl, and senna are also used for this purpose.

Multiple choice

Which of the following medications is commonly used to prevent breakthrough nausea and vomiting?

  1. Ondansetron

  2. Metoclopramide

  3. Prochlorperazine

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

Ondansetron is a commonly used medication for preventing breakthrough nausea and vomiting. Metoclopramide, prochlorperazine, and granisetron are also used for this purpose.