The Food and Drug Administration
issued a warning that covers a product used in several cold remedies and appetite suppressants because of concerns that the ingredient, phenylpropanolamine, may cause hemorrhagic strokes.
Phenylpropanolamine, or PPA, is found in products ranging from Dexatrim to Triaminic. The FDA said it is taking steps to ban the ingredient, but for now is asking product makers to voluntarily stop selling products containing PPA.
On Oct. 20, shares of
, the maker of Dexatrim, fell sharply after the company said a nonprescription drugs advisory committee commissioned by the FDA determined that PPA wasn't safe for use as an appetite suppressant.
The committee made the same recommendation for the use of PPA in decongestants, which affects certain formulations of brands including Contac, Dimetapp and Robitussin.