Do not increase your dose or take this medication more often than directed.Tell your doctor right away if you have any serious side effects, including: difficulty urinating, This is not a complete list of possible side effects. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.Things to remember when you fill your prescription.WebMD does not provide medical advice, diagnosis or treatment.This survey is being conducted by the WebMD marketing sciences department.All information will be used in a manner consistent with the WebMD You may report side effects to FDA at 1-800-FDA-1088.Using Zyrtec with other drugs that make you drowsy can worsen this effect. Undesirable effects are described according to MedDRA System Organ Class and by estimated frequency based on post-marketing experience.Frequencies are defined as follows: Very common (≥1/10); common (≥1/100 to <1/10); uncommon (≥1/1,000 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)Rare: aggression, confusion, depression, hallucination, insomniaVery rare: dysgeusia, syncope, tremor, dystonia, dyskinesiaVery rare: accommodation disorder, blurred vision, oculogyrationRare: hepatic function abnormal (increased transaminases, alkaline phosphatase, γ-GT and bilirubin)Very rare: angioneurotic oedema, fixed drug eruptionNot known: acute generalized exanthematous pustulosisAfter discontinuation of cetirizine, pruritus (intense itching) and/or urticaria have been reported. Dosing adjustment is only necessary in patients with hepatic impairment if concomitant renal impairment is present.Non-clinical data reveal no special hazard for humans based on conventional studies of safety pharmacology, repeated dose toxicity, genotoxicity, carcinogenic potential, toxicity to reproduction.This medicinal product does not require any special storage conditions.The tablets are enclosed in a transparent, colorless, inert PVC blister strip thermo-sealed with a lacquered aluminium foil. Do not use in larger or smaller amounts than advised/prescribed. Actually, neither pharmacodynamic nor significant pharmacokinetic interaction was reported in drug-drug interactions studies performed, notably with pseudoephedrine or theophylline (400 mg/day).The extent of absorption of cetirizine is not reduced with food, although the rate of absorption is decreased.In sensitive patients, the concurrent use of alcohol or other CNS depressants may cause additional reductions in alertness and impairment of performance, although cetirizine does not potentiate the effect of alcohol (0.5 g/L blood levels). If you are using the rapidly-dissolving tablet, allow the tablet to dissolve on the The dosage is based on your age, medical condition, and response to treatment. Cetirizine exhibits linear kinetics over the range of 5 to 60 mg. Take your next dose at the regular time. Therefore, caution should be exercised when prescribing cetirizine to lactating women.Limited data is available on human fertility but no safety concern has been identified.Animal data show no safety concern for human reproduction.Objective measurements of driving ability, sleep latency and assembly line performance have not demonstrated any clinically relevant effects at the recommended dose of 10 mg. Close monitoring of kidney function, appropriate dose adjustments, or replacement with a suitable alternative may be necessary based on the clinical condition of the patient.This is not an exhaustive list of possible drug interactions. Call your doctor if your symptoms do not improve, if they get worse, or if you also have a fever.You should not use Zyrtec if you are allergic to cetirizine or Ask a doctor or pharmacist if it is safe for you to take cetirizine if you have any medical conditions.Use Zyrtec exactly as directed on the label, or as prescribed by your doctor.Older adults may need to take a lower than normal dose. Cetirizine the recommended starting dose for is one 50mg tablet taken 1 hour before sexual activity. Zyrtec is used in adults and children to treat cold or allergy symptoms such as sneezing, itching, watery eyes, or runny nose.Zyrtec is also used to treat itching and swelling caused by Before using Zyrtec tell your doctor about all your medical conditions or Zyrtec may impair your thinking or reactions. This information is intended for use by health professionalsEach film-coated tablet contains 10 mg cetirizine dihydrochloride.Excipients with known effect: one film-coated tablet contains 66.40 mg lactose-monohydrate.White, oblong, film-coated tablet, with breakline and Y-Y logoCetirizine dihydrochloride 10 mg film-coated tablets are indicated in adults and paediatric patients 6 years and above:- for the relief of nasal and ocular symptoms of seasonal and perennial allergic rhinitis.- for the relief of symptoms of chronic idiopathic urticaria.Data do not suggest that the dose needs to be reduced in elderly subjects provided that the renal function is normal.There are no data to document the efficacy/safety ratio in patients with renal impairment.