21 CFR §349.80
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The labeling of any OTC ophthalmic demulcent drug product provided to health professionals (but not to the general public) may contain instructions for the use of these products in professional eye examinations (i.e., gonioscopy, electroretinography).