How does it work?
Zirtek allergy relief tablets contain the active ingredient cetirizine, which is a type of medicine called a non-sedating antihistamine. (NB: cetirizine is also available without a brand name, ie as the generic medicine.) Zirtek works by preventing the actions of histamine.
Histamine is a substance produced by the body as part of its defence mechanisms. It is stored in cells called mast cells, in almost all tissues of the body.
Who can take Zirtek (Cetirizine) Tablets?
Adults and children aged over 6 years.
How to take Zirtek
Take with a glass of liquid. The tablet can be divided into 2 equal doses.
Adults and adolescents above 12 years: 1 tablet daily
Children between 6 and 12 years: half of a tablet twice daily.