Please ensure Javascript is enabled for purposes of website accessibility FDA Finds Illegal Methylsynephrine in Supplements

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 The U.S. Food and Drug Administration (FDA) sent warning letters to seven companies after finding the stimulant methylsynephrine as a dietary ingredient in their supplements. Methylsynephrine (m-synephrine) is also known as Oxilofrine and p-hydroxyephendrine. The 1994 Dietary Supplement Health and Education Act allows the FDA to remove products from the market if they contain unsafe ingredients or their labeling is false or misleading. Methylsynephrine is on the World Anti Doping Agency’s banned substances list, and it does not meet the definition of a dietary ingredient. Bitter orange supplement extracts contain p-synephrine, a legal and natural source of synephrine. Unlike m-synephrine, p-synephrine does not raise heart rate or blood pressure (