How should medications that need to be taken on an empty stomach be administered?

Medications that need to be taken on an empty stomach require careful timing to ensure their effectiveness and proper absorption. The correct approach is to administer these medications one hour before meals or two hours after meals. This timeframe allows the stomach to be free of food, which can otherwise interfere with how well the medication is absorbed into the body.

Taking these medications in this manner helps maximize their efficacy, as food can alter the pH of the stomach or compete with the medication for absorption, potentially reducing its intended effects.

The other options do not align with this principle; taking medications immediately after meals means food is present, which could hinder absorption. Administering at bedtime may not guarantee an empty stomach if food was consumed later in the evening, and taking them with a full glass of water does not address the timing necessary for fasting before or after meals for optimal effectiveness.