Checked 2026-11-10. Independent clinical review has not been completed. WADAFUK is independent of WADA and does not provide medical advice or an individual anti-doping determination.
Prohibited at all times
2026 S3: prohibited at all times; Specified. No dose-based inhaled exception is stated for this substance. [1]
S3; printed p. 9 and relevant S5 note, p. 12 · 2026 rules apply from 1 January 2026. Any 2027 material below concerns future rules from 1 January 2027; it is not current clearance.
Medical context and formulations
The Japanese PMDA Hokunalin label describes tulobuterol transdermal tape for selected obstructive respiratory symptoms. A skin patch is a different route from inhalation. It does not replace anti-inflammatory asthma treatment. [2]
- Product and jurisdiction specific; this is not an exhaustive brand, indication or route inventory.
Selected health warnings
The label warns about excessive-use arrhythmia or cardiac arrest, anaphylaxis, low potassium and skin reactions. Changing a beta-2 agonist to a patch does not create a WADA inhalation exception. [2]
- No treatment dose, device conversion or personal eligibility determination is provided.
What remains uncertain
- No exact ordinary-food or supplement-contamination pathway was established by the retained sources; this is a research limitation, not proof of absence.
Check the sources.
These are concise editorial paraphrases of selected sources, not a systematic review or a reproduction of source tables. Access depth is shown for each reference; an abstract-only check cannot resolve details found only in a full paper.
- WADA 2026 Prohibited List ↗Accessed 2026-11-10 · Relevant official full-text sections opened
Printed pp. 3, 9–12: introduction, S3, S4 and S5 as applicable
- PMDA Hokunalin tulobuterol transdermal tape label ↗Accessed 2026-11-10 · Relevant document text opened
Relevant cited sections
Check the current official WADA List and the relevant anti-doping authority for your sport, product, route and circumstances. Do not stop or change necessary treatment based on this page. Ask a qualified clinician about health decisions. Missing evidence does not establish safety.