They said I used performance-enhancing drugs.

他们说我使用违禁药物。

Compromise view: The performance-enhancing drugs are in his past.

折中观点：提高成绩的药物是在他的过去。

One factor is the use of performance-enhancing drugs, or "doping".

其中一个因素是使用性能违禁药物，或“兴奋剂”。

Abuse of performance-enhancing drugs is not uncommon among athletes.

运动员滥用有助于提高运动成绩的药物不足为奇。

On another subject he said he has never taken performance-enhancing drugs.

另一个问题，他说自己从未服用药物来提高成绩。