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 ...

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 ...

The risks outweigh the benefits. The newer second-generation antihistamines, such as cetirizine, fexofenadine, or loratadine, have been extensively studied in clinical trials. They are generally ...

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 ...

Add-on oral antihistamines or montelukast (Singulair) do not add much benefit. In three separate trials, researchers randomized 3398 adolescent and adult patients with moderate-to-severe SAR ...

For patients with moderate-to-severe SAR that is uncontrolled on nasal steroids alone, the treatment of choice should be a combination intranasal steroid and intranasal antihistamine. For patients ...