Dietary Supplements Alert: Prohibited Substances in Herbal Products


HIWU recommends caution when administering any kind of dietary supplements to Covered Horses. While the Anti-Doping and Medication Control (ADMC) Program permits the possession and use of dietary supplements such as vitamins, minerals, herbs, and homeopathic products, Covered Persons should be aware that dietary supplements are not regulated or evaluated by the FDA for safety, purity, stability, potency, or efficacy prior to their sale.

For example, HIWU recently received notice that an herbal product sold under the name “Yunnan Paiyao” tested positive for the presence of ephedrine, a Class A Controlled Medication. Ephedrine is not listed in the product’s ingredients.

A positive test result stemming from the presence of a Prohibited Substance in a supplement will be prosecuted by HIWU as an ADMC Program violation regardless of whether or not the product label listed the Prohibited Substance as an ingredient.

Covered Persons are reminded that HISA and HIWU do not approve, certify, or endorse dietary supplements or other feed products as being permitted under the ADMC Program.