Title 21: Food and Drugs
« Home / Title 21 - Food and Drugs--Volume 5 / CHAPTER I - FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) / SUBCHAPTER D - DRUGS FOR HUMAN USE
/ PART 344 - TOPICAL OTIC DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE
/ Subpart A - General Provisions / § 344.3 Definitions.
§ 344.3 Definitions.
As used in this part:
(a) Anhydrous glycerin. An ingredient that may be prepared by heating glycerin U.S.P. at 150 °C for 2 hours to drive off the moisture content.
(b) Earwax removal aid. A drug used in the external ear canal that aids in the removal of excessive earwax.
(c) Water-clogged ears. The retention of water in the external ear canal, thereby causing discomfort and a sensation of fullness or hearing impairment.
(d) Ear drying aid. A drug used in the external ear canal to help dry water-clogged ears.