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Title 21: Food and Drugs
CHAPTER I: FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)
SUBCHAPTER D: DRUGS FOR HUMAN USE
PART 358: MISCELLANEOUS EXTERNAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE
Subpart F: Corn and Callus Remover Drug Products
358.503 - Definitions.
As used in this subpart:
(a) Corn and callus remover drug product. A topical agent used for the removal of corns and calluses.
(b) Collodion-like vehicle. A solution containing pyroxylin (nitrocellulose) in an appropriate nonaqueous solvent that leaves a transparent cohesive film when applied to the skin in a thin layer.
(c) Plaster vehicle. A fabric, plastic, or other suitable backing material in which medication is usually incorporated for topical application to the skin.
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