U.S. Code of Federal Regulations
Regulations most recently checked for updates: Dec 09, 2025
The active ingredient of the product consists of any one of the following within the specified concentration established for each ingredient:
(a) Clioquinol 3 percent.
(b) Haloprogin 1 percent.
(c) Miconazole nitrate 2 percent.
(d) Povidone-iodine 10 percent.
(e) Tolnaftate 1 percent.
(f) Undecylenic acid, calcium undecylenate, copper undecylenate, and zinc undecylenate may be used individually or in any ratio that provides a total undecylenate concentration of 10 to 25 percent.
(g) Clotrimazole 1 percent.
