A client has been taking famotidine at home. What teaching should the nurse include with the client?

A. Famotidine will shorten the time required for digestion in the stomach: Famotidine does not affect the speed of gastric digestion. It works by blocking histamine H2 receptors in the stomach lining, reducing acid secretion but not influencing the rate of digestive processes. B. Famotidine will improve the mixing of foods and gastric secretions: This medication does not play a role in mechanical digestion or motility. It affects acid production, not the physical mixing of food with gastric contents or enzymes. C. Famotidine will neutralize acid in the stomach and must be used frequently: Famotidine does not neutralize acid like antacids do; instead, it decreases acid production. It has a longer duration of action and does not require frequent dosing, typically taken once or twice daily. D. Famotidine will inhibit gastric acid secretions and should only be used short term: Famotidine is an H2-receptor antagonist that decreases gastric acid secretion. Long-term use is discouraged without medical supervision, as it may mask symptoms of serious gastrointestinal conditions or lead to tolerance.