Compazine is categorized as what type of medication?

• A. Antiemetic
• B. Antacid
• C. Prokinetic
• D. Antihistamine

Answer: (A)

Compazine is an antiemetic because its main purpose is to prevent or treat nausea and vomiting. It works by blocking dopamine D2 receptors in the brain’s vomiting center and chemoreceptor trigger zone, which disrupts the signals that cause vomiting. This mechanism is what sets it apart from antacids (which neutralize stomach acid), prokinetics (which speed up GI motility), and antihistamines (used mainly for allergy symptoms or motion sickness via different receptors). In clinical use, prochlorperazine is commonly employed for postoperative nausea and chemotherapy-induced emesis, and it can have effects like drowsiness or extrapyramidal symptoms as side effects.