Fenbutrazate

Fenbutrazate (INN), also known as phenbutrazate (BAN), is a psychostimulant used as an appetite suppressant under the trade names Cafilon, Filon, and Sabacid in Europe, Japan, and Hong Kong. It is a derivative of phenmetrazine and may function as a prodrug to it similarly to phendimetrazine. It is not known to be a controlled substance anywhere in the world yet.