The Compound Report is an educational resource. Nothing on this site constitutes medical advice or encourages personal use of any compound. Always consult a qualified healthcare provider.
The World Anti-Doping Agency (WADA) maintains the Prohibited List that defines what substances and methods athletes subject to anti-doping testing cannot use. The list is updated annually and is organized into classes — S0 through S9 — plus M1 through M3 for prohibited methods.
Drugs not approved for human therapeutic use by any regulatory authority (e.g., BPC-157, many research peptides).
Anabolic-androgenic steroids and SARMs (testosterone, LGD-4033, etc.).
GH, IGF-1, EPO, GHRH analogs, GHRPs (CJC-1295, ipamorelin, tesamorelin, TB-500).
Most beta-2 agonists are banned; salbutamol, formoterol, salmeterol have inhaled-use exceptions.
Aromatase inhibitors, SERMs, anti-estrogens.
Diuretics and substances that mask the presence of other prohibited compounds.
Banned in competition; some allowed out-of-competition.
Banned in competition.
THC banned in competition; CBD permitted.
Banned in competition by certain routes; many out-of-competition uses permitted.
Athletes with a legitimate medical need for a prohibited substance can apply for a TUE through their national anti-doping organization or international federation. Approval requires documented diagnosis, evidence that no permitted alternative would work, and evidence the dose is the minimum effective. TUEs are not available for every prohibited substance — S0 compounds (non-approved substances like BPC-157) typically cannot receive a TUE because there is no recognized medical indication.
Some classes (S0 through S5) are prohibited at all times. Others (S6 through S9) are prohibited only in-competition. The in-competition window typically begins 11:59 PM local time the day before competition and ends when the athlete's last sample is collected. Out-of-competition use of in-competition-only substances is permitted but detection windows matter — substances with long half-lives can still be detected later.
This page is a primer. The authoritative source is wada-ama.org and the current-year Prohibited List published every January. Status of specific compounds is noted on each chapter's regulatory section.