How to find a good decongestant Two common decongestants are pseudoephedrine and phenylephrine ... Second-generation antihistamines, such as fexofenadine and loratadine First-generation ...

Older antihistamines, such as Benadryl (diphenhydramine), are known to cause significant side effects such as drowsiness. Newer antihistamines, like Allegra, were seen to be an advance in treatment, ...

Some medications combine an antihistamine and a decongestant (such as pseudoephedrine ... cetirizine (Zyrtec), levocetirizine (Xyzal) and fexofenadine (Allegra), shouldn't make you feel sleepy.

Cats are one of the most popular household pets, but between 5% and 20% of people have some degree of cat allergy. Cat allergy symptoms and severity can vary based on your sensitivity, the amount ...