The usual dose of cetirizine syrup will change depending on your child’s age and weight.

Children can start taking some Cetirizine syrups when they’re as young as two, so check each product’s packaging to see if it’s suitable for your child and to double-check the dosage.

Cetirizine liquid will usually contain 1mg of the active ingredient in every ml, with the usual dosages being as follows:

• Children aged 2 – 6 years, or children who weigh less than 30kg or 4.7 stones: One 5ml spoonful once a day.
• Children aged 6 – 12 years: Two 5ml spoonfuls a day, one in the morning and one in the evening.
• Adults and children over the age of 12: Two 5ml spoonfuls once a day. If you find this medicine makes you feel drowsy, take it in the evening.

Each medicine may require different dosages, so make sure you double-check any cetirizine product before giving any to your child or taking it yourself.

If you’re ever unsure of the right dosage to use, speak to your doctor or pharmacist for advice.