CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER D—DRUGS FOR HUMAN USE (parts 300 to 370) > PART 349—OPHTHALMIC DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE > SUBPART B—Active Ingredients (§349.10 to §349.30) > 349.18—Ophthalmic vasoconstrictors.

349.18—Ophthalmic vasoconstrictors.

The active ingredient of the product consists of one of the following, within the established concentration for each ingredient:
(a) Ephedrine hydrochloride, 0.123 percent.
(b) Naphazoline hydrochloride, 0.01 to 0.03 percent.
(c) Phenylephrine hydrochloride, 0.08 to 0.2 percent.
(d) Tetrahydrozoline hydrochloride, 0.01 to 0.05 percent.