You can also take medicine that combines antihistamine and decongestant all-in-one. These medications are usually marked with a "D" — such as Claritin-D, Allegra-D, and Zyrtec-D. For a long list ...
take as they wish. So why then are Allegra, Claritin, and Zyrtec still only available by prescription? WellPoint, a California-based HMO, wants to know why the FDA has not used its authority to ...