Final answer:
The pharmacist should ask about the patient's meal patterns, food access, living conditions, medication storage, and understanding of dosing instructions and hypoglycemia management, due to the risk that homelessness might interfere with the regular meal schedule and proper storage, increasing the risk of hypoglycemia.
Step-by-step explanation:
The important information that should be requested from the patient includes his meal patterns and access to food, as well as an understanding of his living conditions. Repaglinide is a medication that requires careful coordination with meals to prevent hypoglycemia, which is a common side effect. Being homeless can pose challenges to following a regular meal schedule, creating a risk of either missed doses or taking the medication without eating, which can lead to hypoglycemia.
Additionally, asking about storage capabilities for the medication is crucial since repaglinide must be stored properly to maintain its efficacy. Lastly, it is essential to ensure that the patient understands the administration instructions and the signs and management of hypoglycemia, considering that his living conditions might make it difficult to seek immediate medical help if symptoms occur.