Active substance

Zileuton

6 products from 6 companies contain this in United States.

6 prescription onlyTablet, Film Coated, Extended ReleaseTablet, Multilayer, Extended ReleaseTablet, Extended ReleaseTablet

Prescription only

Same substance is not the same product. Strength, form, release mechanism and other ingredients all differ. Whether one can replace another is a decision for a pharmacist.