Zyrtec Ingredients and Composition

Zyrtec Information

Zyrtec Ingredients and Composition

Cetirizine HCl, the active ingredient in Zyrtec, 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 HCl is a racemic compound with an empirical formula of

C₂₁H₂₅ClN₂O₃•2HCl. The molecular weight is 461.82.

Cetirizine HCl is a white, crystalline powder and is water soluble. Zyrtec tablets are formulated as white, film-coated, rounded-off rectangular shaped tablets for oral administration and are available in 5 and 10 mg strengths.

Inactive Ingredients:

• lactose
• magnesium stearate
• povidone
• titanium dioxide
• hydroxypropyl methylcellulose
• polyethylene glycol
• corn starch

Zyrtec syrup is a colorless to slightly yellow syrup containing cetirizine HCl at a concentration of 1 mg/ml (5 mg/5 ml) for oral administration. The pH is between 4 and 5.

Inactive Ingredients:

• banana flavor
• glacial acetic acid
• glycerin
• grape flavor
• methylparaben
• propylene glycol
• propylparaben
• sodium acetate
• sugar syrup
• water

Zyrtec Information