the fact of a sportsperson being allowed to take a drug that is not normally allowed in their sport because they suffer from a particular medical condition, or the document that states this

The player mistakenly assumed his therapeutic use exemption for Salbutamol covered similar medications. 该球员错误地认为他对沙丁胺醇的治疗用药豁免涵盖了其他一些类似的药物。

He tested positive for a banned corticosteroid in 1999 but was cleared after producing a therapeutic use exemption. 1999年，他的禁药皮质类固醇检测结果呈阳性，但在出示治疗用药豁免证明后，他重获清白。