Our list features seven of the top types of antihistamines, including fexofenadine hydrochloride (HCl) (Allegra), cetirizine HCl (Zyrtec and Amazon Basic Care All-Day Allergy), loratadine (Claritin), ...

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 ...

Anti-histamines combined with a decongestant are usually marked with a "D." Claritin-D, Allegra-D, and Zyrtec-D all contain a decongestant called pseudoephedrine, the same active ingredient that ...

Getty Images Antihistamine pills like Zyrtec, Claritin or Allegra are more effective than topical creams, as they calm the body’s overall immune response.

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.