Singulair for athletes: anti-doping and performance
Athletes in regulated competitive sport face an additional layer of medication review beyond clinical considerations: whether Singulair (Montelukast) is permitted under anti-doping rules, requires a Therapeutic Use Exemption, or is on the prohibited list at 4mg, 5mg, 10mg. The active ingredient Montelukast determines the answer; brand or generic version is irrelevant to anti-doping classification.
Anti-doping status of Singulair
The WADA Prohibited List and equivalent national lists are updated annually. Montelukast 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. Montelukast selectively blocks the CysLT1 receptor, which mediates the action of leukotrienes C4, D4 and E4 — proinflammatory mediators released by mast cells and eosinophils.
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 Singulair at 4mg, 5mg, 10mg.
Frequently asked questions
Is Singulair banned in sport? ▾
Whether Singulair is banned depends on Montelukast 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 Singulair 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 4mg, 5mg, 10mg. Athletes should expect to experiment with timing relative to training in the first weeks.
More on Singulair
- With alcoholSingulair and alcohol — is it safe to drink?
- With foodShould Singulair be taken with food?
- Side effectsSingulair side effects: common, rare and warning signs
- Dosage guideSingulair dosage guide: how much to take and when
- OnsetHow fast does Singulair start working?
- DurationHow long does Singulair last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.