Summary of Product Characteristics: Hay Fever and Allergy Relief tablets 10mg. Herbal Concepts Ltd. Revised May 2005. Although cetirizine is a non-sedating or non-drowsy antihistamine, occasionally some people may find it makes them slightly sleepy. Make sure you know how this medicine affects you or your child before doing potentially hazardous activities such as driving or riding bikes. If you do find this medicine makes you sleepy you should avoid drinking alcohol or using other medicines that cause drowsiness with it, as this could make any sleepiness or reduced alertness worse.

if you are allergic to cetirizine dihydrochloride, to any of the other ingredients (listed in section 6), to hydroxyzine or to any piperazine derivatives (closely related active ingredients of other medicines). Zirtek allergy solution contains the active ingredient cetirizine dihydrochloride, which is a type of medicine called a non-sedating antihistamine. Children aged from 2 to 6 years: 2.5 mg twice daily (2.5 ml oral solution twice daily (a half spoon twice daily)). 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. This medicinal product contains 250 mg propylene glycol (E 1520) in each 5 ml which is equivalent to 50 mg/ml.The tablets should be swallowed with a drink. They can be taken either with or without food, on a full of empty stomach. Cetirizine is not suitable for some people. To make sure it's safe for you, tell your doctor or pharmacist if you: Renal impairment: The pharmacokinetics of the drug was similar in patients with mild impairment (creatinine clearance higher than 40 mL/min) and healthy volunteers. Patients with moderate renal impairment had a 3-fold increase in half-life and 70 % decrease in clearance compared to healthy volunteers.

Zirtek allergy relief tablets contain 10mg cetirizine and are suitable for adults and children aged six years and over. How do Zirtek allergy relief tablets work? to <1/100); rare (≥1/10,000 to <1/1,000); very rare (<1/10,000), not known (cannot be estimated from the available data) If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, askOr you may need to take it regularly to prevent symptoms – for example, to stop hay fever during spring and summer. What if I forget to take it? The apparent volume of distribution is 0.50 l/kg. Plasma protein binding of cetirizine is 93 ± 0.3 %. Cetirizine does not modify the protein binding of warfarin. In addition to the adverse reactions reported during clinical studies and listed above, the following undesirable effects have been reported in post-marketing experience. No dose adjustment is needed in patients with solely hepatic impairment. In patients with hepatic impairment and renal impairment, adjustment of the dose is recommended (see Renal impairment above). feeling sleepy and tired – try a different non-drowsy antihistamine. If this does not help, talk to your doctor.