Caution: Undeclared Prohibited Substance(s) in equine product FUSTEX
It has come to the FEI’s knowledge that the product FUSTEX, manufactured by Chinfield S.A. and used in particular to stimulate muscle work, may contain propoxyphene and/or potentially other prohibited substances. However, the substance propoxyphene is not listed as an ingredient of FUSTEX in the product information made available by the manufacturer. Propoxyphene is a banned substance under the FEI Equine Prohibited List, and its use at any time, as well as its presence in a horse’s sample at any time, constitute an Equine Anti-Doping Rule violation.

The FEI is therefore cautioning its stakeholders against the use of FUSTEX. Lack of knowledge regarding the ingredients of FUSTEX will not be a valid excuse in any Equine Anti-Doping procedures.   

Furthermore please be reminded of the FEI warning against the administration of supplements which can be found here.