CETIRIZINE (Zyrtec, antihistamine)
When to use:   Use cetirizine to reduce allergic symptoms such as a runny nose or an itchy rash.
Dose:   One dose once per day. 
Side effects:   Rare
 
Cetirizine 5 mg per 5 mL Dosage by weight
Age Dose
Under six months Do not use
6 months to 2 years Consult us for dose
2 to 5 years 2.5 mL
6 to 11 years 5 mL
12+ years 10 mL
Children 12 and older can take one 10 mg cetirizine tablet once daily.
Abbreviations:
mL = milliliter
1 teaspoon = 5 mL
 

When to use:   Use cetirizine to reduce allergic symptoms such as a runny nose or an itchy rash.
Dose:   One dose once per day. 
Side effects:   Rare
 
Under six months Do not use
6 months to 2 years Consult us for dose
2 to 5 years 2.5 mL
6 to 11 years 5 mL
12+ years 10 mL

Children 12 and older can take one 10 mg cetirizine tablet once daily.
Abbreviations:
mL = milliliter
1 teaspoon = 5 mL