The objective of this study is to compare the relative bioavailability of leflunomide 20 mg
tablets (manufactured by TEVA Pharmaceutical Industries, Ltd. and distributed by TEVA
Pharmaceuticals USA) with that of ARAVA 20 mg tablets (Aventis) in healthy, adult,
non-smoking subjects [females (who are unable to become pregnant) and vasectomized males]
under non-fasting conditions.