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 implement a switch ...

Antihistamines — like Claritin, Allegra, or Zyrtec — can reduce most of these allergy symptoms and will likely be your first option. However, if nasal congestion or a stuffy nose is one of ...