Store at room temperature away from moisture, heat, and light. What should I do if I missed a dose of Zyrtec Liquid Gels (Oral)? Cetirizine is used when needed. If you are on a dosing schedule ...

Zyrtec is the brand name for an antihistamine ... or two 5 mg tablets 50 to 100 Ibs: 20 mg or two 10 mg tablets If your dog ...