Do you mean Pseudoephedrine?
I was going to say it could be ephedrine, or clen. I used to sell it many years back as a fat burner. I just don't think it could enhance performace. Killed your appetite, made you jittery and dehydrated. We know the government/big pharma has a vendetta against these evil diet pills or any self-medication, which is why it annoys me people fall in line so easily. Just hoping it will be something more innocuous and a mistake i.e taken an otc fat burner and one ingredient was flagged up. We'll see.