The lifelong treatment for Celiac disease is a strict gluten-free diet that eliminates all foods, beverages, vitamins, supplements, and medications containing wheat, rye, or barley. Gluten is commonly used as an excipient or filler in medications, so patients must check with pharmacists and contact manufacturers to verify that any prescription drugs are gluten-free. If a prescribed medication contains gluten, patients should consult their doctor about an appropriate substitute. It is also important for those with Celiac disease to report any issues with how a medication works to their doctor right away due to potential problems with nutrient absorption.