//Medication and Supplements in Sport
Use of Medications & Risks of Supplement Use
Athletes are responsible for everything they ingest. The information below helps athletes make informed and safer decisions when using medications or supplements.
Checking Medications
Supplement Risks
Self-Check
How should athletes check medications?
Both prescribed and over-the-counter medications must be checked against the WADA Prohibited List. Athletes should inform healthcare professionals that they are subject to anti-doping rules.
- Check medications using Global DRO (based on country, dose & route)
- Prohibited List refers to active ingredients, not brand names
- Check dosage limits and route of administration
- Be aware of wash-out periods, especially in-competition
- Exercise caution when travelling – ingredients may differ by country
Important: Global DRO is an information tool.
Under the principle of Strict Liability, athletes remain fully responsible
for any prohibited substance found in their sample.
Why are supplements high-risk?
- Lower manufacturing standards than medicines
- Risk of contamination or cross-contamination
- Incorrect or missing ingredient labelling
- False claims such as “safe for athletes” or “WADA approved”
Can supplements ever be used?
If a supplement is considered necessary, athletes should minimise risk by:
- Using a food-first approach whenever possible
- Consulting a qualified sports nutritionist
- Selecting supplements that are batch-tested (e.g. Informed Sport, NSF Certified for Sport®, Kölner Liste)
Reminder: No supplement is 100% risk-free.
Athletes are responsible for any prohibited substance found, regardless of source.
Quick Athlete Self-Check
If unsure: Always seek advice before use.
When in doubt, do not take.