DR. BOB: Most likely, the allergy pills you are referring to are non-sedating antihistamines such as Zyrtec, Allegra, or Claritin. Sedating antihistamines are medicines such as Benadryl.
Found in almost every single over-the-counter cold, sinus and allergy medication, oral phenylephrine, is pretty close to being banned by the FDA here in America. The head cheese in charge of all ...