U.S. Anti-Doping Agency (USADA)

USADA logo.

Global DRO logo in whiteSearch Medications & Ingredients

Drug Reference Phone Line

Speak to an Expert

USADA’s Drug Reference Line® provides a personal resource to understanding prohibited substances based on the WADA Prohibited List. An expert is available to answer questions about the status of a substance; Therapeutic Use Exemptions (TUE); and how that process can be started or carried out. The resource is available Monday-Friday, 8 a.m. to 4 p.m. MST.

(719) 785-2000

Press Option 2


Not able to make a phone call? Email the drug reference team at drugreference@usada.org.

Other Drug Reference Resources

Global DRO

Supplement 411

Search the Status of Medications Online
  • Search by name brand or generic ingredient
  • In and out-of-competition status specific to sport
  • Threshold substance information

The use of dietary supplements is at your own risk.  Learn more about dietary supplements and how to reduce your risk if you choose to use them.

white Supplement411 logo
Scroll to Top