Generic name: cetirizine hydrochloride
Dosage form: oral solution
Drug class:Antihistamines
Medically reviewed by Drugs.com. Last updated on Jan 1, 2022.
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Cetirizine Oral Solution Description
Cetirizine hydrochloride is an orally active and selective H1-receptor antagonist. The chemical name is (±) - [2- [4- [(4- chlorophenyl)phenylmethyl]-1- piperazinyl] ethoxy] acetic acid, dihydrochloride. Cetirizine hydrochloride is a racemic compound with an empirical formula of C 21H 25ClN 2O 3 •2HCl. The molecular weight is 461.82 and the chemical structure is shown below:
Cetirizine dihydrochloride is a white or almost white powder and is freely soluble in water, practically insoluble in acetone and in methylene chloride. Cetirizine Hydrochloride Oral Solution, USP is a colorless to slightly yellow oral solution containing cetirizine hydrochloride at a concentration of 1 mg/mL (5 mg/5 mL) for oral administration. The pH is between 4 and 5. The inactive ingredients of the oral solution are: glacial acetic acid, grape flavor, glycerin, methylparaben, propylene glycol, propylparaben, sodium acetate, sucrose and purified water.
