Your performance supplement may contain a side of the main ingredient in Viagra
Supplements widely marketed to men for performance, energy and sex drive are testing positive for prescription drugs that could have dangerous side effects.
![Your performance supplement may contain a side of the main ingredient in Viagra](https://media-cldnry.s-nbcnews.com/image/upload/t_fit_1500w/rockcms/2024-12/241205-bro-supplements-lr-f24b9d.jpg?#)
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