Phenylpropanolamine (PPA) refers to a chemical that is in many over the counter and prescription
cold and cough medications, nasal econgestants, and over the counter appetite suppressant and weight loss products.
Phenylpropanolamine (PPA) referring to what was once a common weight loss ingredient in appetite suppressants, recent studies have linked PPA to an increased risk of stroke. The FDA warns consumers to avoid use of products containing PPA.