Question: what ingredients are in zyrtec?
Answer: Zyrtec-D® (cetirizine HCl 5 mg/pseudoephedrine HCl 120 mg) Tablets. Active Ingredients. Inactive ingredients. colloidal silicon dioxide, croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, titanium dioxide.