Cetirizine is an over-the-counter (OTC) antihistamine. Pseudoephedrine is a decongestant. Zyrtec-D is an OTC combination medication of the two. Decongestants help relieve nasal congestion by ...

Any of the newer antihistamines, such as loratadine (Claritin, Alavert), desloratadine (Clarinex), cetirizine (Zyrtec), levocetirizine (Xyzal) and fexofenadine (Allegra), shouldn't make you feel ...

ACTIVE INGREDIENT: The active ingredient in Amazon Basic Care All Day Allergy is cetirizine hydrochloride, an antihistamine approved for the treatment of both indoor and outdoor allergy symptoms ...

An antihistamine is a type of medication that is used to relieve or prevent allergy symptoms such as runny nose, sneezing, and watery eyes. Antihistamines work by blocking histamine — a chemical ...

British pharmaceutical GSK announced in 2023 that it planned to stop producing its popular Zyrtec-D, an antihistamine and decongestant that contains pseudoephedrine, citing business reasons.