Determining the gluten content of nonprescription drugs: information for patients with celiac disease.

Objectives: To determine whether the information on the gluten content of nonprescription drugs is readily available from the manufacturer/supplier, to identify how patients are directed on the product labeling to obtain answers to questions that they have about the nonprescription medication, and to determine the time needed to obtain information about the gluten content of the product when contacting manufacturers/suppliers.

Design: Descriptive, exploratory, nonexperimental study.

Setting: United States during July 2010.