Zyrtec is an anti-allergic used to treat hayfever and other allergic conditions. It is fast acting, usually within 10-20 minutes after taking it, non-sedating and its effect lasts for 24 hours.
Adults and children over 6 years of age: 1 spoon (5ml) twice daily or 1 spoon (5ml) once daily.
(Unless directed by a physician) 1-6 years - 1/2 spoon (2.5ml) twice daily or 1 spoon (5ml) once daily.
Cetirizine hydrochloride 1mg/ml