§ 344.3 - Definitions.

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As used in this part:

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.

Earwax removal aid. A drug used in the external ear canal that aids in the removal of excessive earwax.

Water-clogged ears. The retention of water in the external ear canal, thereby causing discomfort and a sensation of fullness or hearing impairment.

Ear drying aid. A drug used in the external ear canal to help dry water-clogged ears.