Oxilofrine (also known as methylsynephrine, hydroxyephrine, oxyephrine, and 4-HMP)

[George Spellwin]

Both world-class Jamaican and American sprinters have been using a banned drug called oxilofrine to boost their performance and smash records. Find out why these sprinters are breaking all of the rules to use oxilofrine and how it works. Check out:

<a href="http://bodybuilding.elitefitness.com/oxilofrine-methyl-synephrine-doping" target="_blank">Oxilofrine (methyl synephrine) doping helps Bodybuilders Burn Fat, Sprinters Smash Records
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