Drugs such as Zantac and Tagamet helps to gastritis and ulcers by
A)blocking H2-histamine receptors.
B)blocking H1-histamine receptors.
C)inhibiting proton pumps.
D)killing bacteria.

Question

Quizplus · Accepted Answer

Zantac and Tagamet are both H2 receptor antagonists, which means they block the action of histamine on H2 receptors that are found on the cells lining the stomach. This decreases the amount of acid production by the stomach, which helps relieve symptoms of gastritis and ulcers. Option B is incorrect because H1 receptors are not involved in acid secretion. Option C is incorrect because proton pump inhibitors are a different class of drugs that also reduce acid production, but they work by blocking an enzyme called H+/K+-ATPase in the stomach lining. Option D is incorrect because while bacterial infections can cause gastritis, Zantac and Tagamet do not have antibacterial properties.

Drugs Such as Zantac and Tagamet Helps to Gastritis and Ulcers