U.S. Anti-Doping Agency (USADA)

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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 5 p.m. MST. If you reach our voicemail during office hours, please leave a detailed messaged and we will call you back as soon as possible.

(719) 785-2000

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

Other Drug Reference Resources

Global DRO

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
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Supplement Connect

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.

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