Dual 5α-reductase inhibitor (type 1 and type 2)
Dutasteride for athletes: anti-doping and performance
Athletes in regulated competitive sport face an additional layer of medication review beyond clinical considerations: whether Dutasteride (Dutasteride) is permitted under anti-doping rules, requires a Therapeutic Use Exemption, or is on the prohibited list at 0.5mg. The active ingredient Dutasteride determines the answer; brand or generic version is irrelevant to anti-doping classification.
Anti-doping status of Dutasteride
The WADA Prohibited List and equivalent national lists are updated annually. Dutasteride may be permitted at all times, prohibited in-competition only, prohibited at all times, or require a TUE depending on the agent and the sport. Some otherwise-routine medications are restricted at competition because of their pharmacological effects on cardiovascular, neuromuscular or hormonal systems. Dutasteride irreversibly inhibits both isoenzymes of 5α-reductase, the enzyme that converts testosterone to dihydrotestosterone (DHT).
TUE and practical guidance
According to anti-doping authorities, an athlete who needs a prohibited or restricted medication for a legitimate medical reason can apply for a Therapeutic Use Exemption before using it. The application requires medical documentation and may need to be approved before competition. Athletes should always check the most recent WADA list and their sport's federation rules before starting Dutasteride at 0.5mg.
Frequently asked questions
Is Dutasteride banned in sport? ▾
Whether Dutasteride is banned depends on Dutasteride and the most recent WADA Prohibited List. Some agents are permitted, some restricted in-competition, some prohibited at all times. Always check the current list and TUE requirements before competition.
Will Dutasteride affect my performance? ▾
Performance effects depend on the medication and the sport. Some medications can mildly impair physical or cognitive performance through their side effects; others are essentially neutral at 0.5mg. Athletes should expect to experiment with timing relative to training in the first weeks.
Products containing Dutasteride
More on Dutasteride
- With alcoholDutasteride and alcohol — is it safe to drink?
- With foodShould Dutasteride be taken with food?
- Side effectsDutasteride side effects: common, rare and warning signs
- Dosage guideDutasteride dosage guide: how much to take and when
- OnsetHow fast does Dutasteride start working?
- DurationHow long does Dutasteride last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.