Which administration instruction applies to sucralfate?

Which administration instruction applies to sucralfate?

• A. Take with meals
• B. Take on empty stomach
• C. Take with antibiotics
• D. Take with dairy

Answer: (B)

Sucralfate works by forming a sticky protective layer over ulcers in the stomach, and it does this best when it can contact the ulcer without food getting in the way and while the gastric environment is acidic. Taking it on an empty stomach ensures maximal coating of the ulcer and adherence to the mucosa. Food in the stomach can dilute or interfere with this contact, reducing its protective effect. That's why the correct instruction is to take it on an empty stomach (often 1 hour before meals and at bedtime). Taking it with meals or with dairy would disrupt its ability to coat the ulcer effectively, and taking it with antibiotics is avoided because timing to prevent interactions with other drugs is important, not because of the coating mechanism itself in the same way.

Sucralfate works by forming a sticky protective layer over ulcers in the stomach, and it does this best when it can contact the ulcer without food getting in the way and while the gastric environment is acidic. Taking it on an empty stomach ensures maximal coating of the ulcer and adherence to the mucosa. Food in the stomach can dilute or interfere with this contact, reducing its protective effect. That's why the correct instruction is to take it on an empty stomach (often 1 hour before meals and at bedtime). Taking it with meals or with dairy would disrupt its ability to coat the ulcer effectively, and taking it with antibiotics is avoided because timing to prevent interactions with other drugs is important, not because of the coating mechanism itself in the same way.