ABOUT CETIRIZINE HYDROCHLORIDE TABLETS 10 MG: Compare to Zyrtec® active ingredient. Cetirizine Hydrochloride Tablets, 10 mg active ingredient is Cetirizine Hydrochloride, 10 mg, an antihistamine approved for the treatment of both indoor and outdoor allergy symptoms. One dose works for a full 24 hours. Temporarily relieves indoor and outdoor allergy symptoms in adults and children 6 years and over. Each tablet contains 10 mg of Cetirizine Hydrochloride. Original prescription strength. All-day allergy...