Antihistamines

Claritin

What is Claritin? Claritin is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce...

February 21, 2026

Cetirizine

What is cetirizine? Cetirizine is a second generation antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of...

February 17, 2026

Chlorpheniramine

What is chlorpheniramine? Chlorpheniramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce...

February 16, 2026

Levocetirizine

Generic name: levocetirizine [ LEE-voe-se-TIR-a-zeen ]Brand names: Xyzal, LevrixDosage forms: oral solution, oral tabletDrug class: Antihistamines What is levocetirizine? Levocetirizine is an antihistamine that may be used...

September 14, 2025

Loratadine

Generic name: loratadine [ lor-AT-a-deen ]Brand names: Alavert, Claritin, Claritin Reditab, ohm Allergy Relief, Tavist ND, Wal-itinDosage forms: oral capsule (10 mg), oral syrup (5 mg/5 mL), oral tablet (10...

September 12, 2025

Phenergan

Generic name: promethazine (oral) [ pro-METH-a-zeen ]Other brand names of promethazine (oral) include: Phenergan, Phenadoz, PrometheganDrug classes:Antihistamines  , Phenothiazine antiemetics  What is Phenergan? Phenergan belongs to a group of drugs...

August 30, 2025

Promethazine

Generic name: promethazine (oral) [ pro-METH-a-zeen ]Brand name: PhenerganDrug classes: Antihistamines, Phenothiazine antiemetics  What is promethazine? Promethazine is in a group of drugs called phenothiazines (FEEN-oh-THYE-a-zeens). It...

August 29, 2025