The following is an excerpt from an article on MMAWeekly.com:
Mixed martial artist Donald "Cowboy" Cerrone failed his post-fight drug test at last week's WEC event, according to the Nevada State Athletic Commission.
Cerrone tested positive for Hydrochlorothiazide, which is a diuretic that can be used by athletes to assist in weight-cutting by impeding the kidney's water-retaining capabilities. It can also be used to treat medical conditions such as high blood pressure and congestive heart failure.