When a treatment with cetirizine is stopped after repeated administration, the skin recovers its normal reactivity to histamine within 3 days. Take one 10mg cetirizine tablet once a day and try to take this at the same time each day, either in the morning OR in the evening.

Hyperdrug Pharmaceuticals Limited (Registered in England and Wales with Company Number 01898060) previously registered as Hyperdrug Ltd. However, as it is the case with all antihistamines, it is recommended to avoid consumption of alcohol while taking this medicine. Both Cetirizine and Loratadine are non-sedating antihistamines which work to block histamine receptors in the body.The use of the film-coated tablet formulation is not recommended in children aged less than 6 years since this formulation does not allow for appropriate dose adaptation. The majority of items are still arriving within these timeframes, there may be some delays with Royal Mail and DPD due to pressure on the postal network at the moment. Renal impairment: The pharmacokinetics of the drug was similar in patients with mild impairment (creatinine clearance higher than 40 ml/min) and healthy volunteers. Studies in healthy volunteers show that cetirizine, at doses of 5 and 10 mg strongly inhibits the wheal and flare reactions induced by very high concentrations of histamine into the skin, but the correlation with efficacy is not established. Elderly: Data do not suggest that the dose needs to be reduced in elderly subjects provided that the renal function is normal.

The extent of absorption of cetirizine is not reduced with food, although the rate of absorption is decreased. Speak to a pharmacist if you have signs of dehydration, such as peeing less than usual or having dark, strong-smelling pee.If you or your child have been prescribed cetirizine, follow your doctor's instructions about how and when to take it.