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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 term used to describe the sudden stopping of medication without gradually reducing the dosage?

  1. Tapering

  2. Withdrawal

  3. Discontinuation

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

Discontinuation refers to the abrupt cessation of medication without following a tapering schedule, which can lead to withdrawal symptoms.

Multiple choice

What is the primary active compound found in turmeric?

  1. Curcumin

  2. Quercetin

  3. Resveratrol

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

Curcumin is the main active compound in turmeric, responsible for its anti-inflammatory and antioxidant properties. It has been studied for its potential benefits in various health conditions.

Multiple choice

What is the primary active compound in garlic that is associated with cardiovascular benefits?

  1. Allicin

  2. Quercetin

  3. Resveratrol

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

Allicin is a sulfur-containing compound found in garlic that is responsible for its characteristic odor and flavor. It has been studied for its potential cardiovascular benefits, including reducing blood pressure and cholesterol levels.

Multiple choice

What is the main active compound in ginger that is associated with anti-inflammatory and nausea-relieving properties?

  1. Gingerols

  2. Quercetin

  3. Resveratrol

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

Gingerols are the primary active compounds in ginger, responsible for its characteristic flavor and aroma. They possess anti-inflammatory and antioxidant properties and have been studied for their potential benefits in reducing nausea and inflammation.

Multiple choice

What is the primary active compound in turmeric that is associated with anti-inflammatory and antioxidant properties?

  1. Curcumin

  2. Quercetin

  3. Resveratrol

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

Curcumin is the main active compound in turmeric, responsible for its anti-inflammatory and antioxidant properties. It has been studied for its potential benefits in various health conditions, including inflammation, pain, and cancer.

Multiple choice

What is the primary active compound in garlic that is associated with cardiovascular benefits?

  1. Allicin

  2. Quercetin

  3. Resveratrol

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

Allicin is a sulfur-containing compound found in garlic that is responsible for its characteristic odor and flavor. It has been studied for its potential cardiovascular benefits, including reducing blood pressure and cholesterol levels.

Multiple choice

Which of the following drugs is a proton pump inhibitor (PPI)?

  1. Omeprazole

  2. Ranitidine

  3. Cimetidine

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

Omeprazole is a PPI that works by inhibiting the H+/K+-ATPase pump in the gastric parietal cells, thereby reducing gastric acid secretion.

Multiple choice

Which of the following drugs is an antacid?

  1. Sodium bicarbonate

  2. Magnesium hydroxide

  3. Aluminum hydroxide

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

Antacids, such as sodium bicarbonate, magnesium hydroxide, and aluminum hydroxide, work by neutralizing gastric acid and raising the pH of the stomach contents.

Multiple choice

What is the main therapeutic use of sucralfate?

  1. Treatment of peptic ulcer disease

  2. Prevention of stress ulcers

  3. Treatment of gastroesophageal reflux disease (GERD)

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

Sucralfate is used to treat peptic ulcer disease, prevent stress ulcers, and treat GERD by forming a protective barrier over the ulcer or eroded mucosa.

Multiple choice

Which of the following drugs is a prokinetic agent?

  1. Metoclopramide

  2. Domperidone

  3. Erythromycin

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

Prokinetic agents, such as metoclopramide, domperidone, and erythromycin, work by increasing the motility of the gastrointestinal tract.

Multiple choice

What is the primary mechanism of action of antidiarrheal drugs?

  1. Inhibition of intestinal motility

  2. Absorption of water and electrolytes

  3. Killing of pathogenic bacteria

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

Antidiarrheal drugs, such as loperamide and diphenoxylate, work by inhibiting intestinal motility, thereby reducing the frequency and volume of stools.

Multiple choice

Which of the following drugs is a laxative?

  1. Bisacodyl

  2. Polyethylene glycol

  3. Lactulose

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

Laxatives, such as bisacodyl, polyethylene glycol, and lactulose, work by increasing the frequency and volume of stools.

Multiple choice

What is the primary mechanism of action of antiemetics?

  1. Blocking dopamine receptors in the chemoreceptor trigger zone (CTZ)

  2. Blocking serotonin receptors in the CTZ

  3. Blocking histamine receptors in the CTZ

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

Antiemetics, such as metoclopramide, ondansetron, and promethazine, work by blocking dopamine, serotonin, and histamine receptors in the CTZ, thereby reducing nausea and vomiting.

Multiple choice

Which of the following drugs is a cholinergic agonist?

  1. Bethanechol

  2. Pilocarpine

  3. Carbachol

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

Cholinergic agonists, such as bethanechol, pilocarpine, and carbachol, work by stimulating muscarinic cholinoreceptors, thereby increasing gastrointestinal motility and secretions.

Multiple choice

What is the primary mechanism of action of anticholinergic drugs?

  1. Blocking muscarinic cholinoreceptors

  2. Blocking nicotinic cholinoreceptors

  3. Blocking both muscarinic and nicotinic cholinoreceptors

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Anticholinergic drugs, such as atropine, scopolamine, and glycopyrrolate, work by blocking muscarinic cholinoreceptors, thereby reducing gastrointestinal motility and secretions.