Tox Tuesday: Banned substance tested for in both athletes and meat

Clenbuterol is a decongestant and bronchodilator that is well known as a performance-enhancing drug, but is also hot on the black market for a different purpose: fattening up farm animals before slaughter.

One famous Mexican boxer recently tested positive for the banned substance, but claims that he didn’t intentionally take the performance-enhancing drug — rather, […]