Allacan is used to treat people who have hay fever (seasonal allergic rhinitis), year round allergies such as dust or pet allergies (perennial allergic rhinitis) and urticaria (swelling, redness and itchiness of the skin)3.

It works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction and gets to work quickly within an hour so it is great as a reactive measure for when you start to present signs of hay fever. allacan® tablets are used to treat people who have hay fever (seasonal allergic rhinitis), year round allergies such as dust or pet allergies (perennial allergic rhinitis) and urticaria (swelling, redness and itchiness of the skin).However, as it is the case with all antihistamines, it is recommended to avoid consumption of alcohol while taking this medicine. Cetirizine is classed as a non-drowsy antihistamine, but some people still find it makes them feel quite sleepy. After discontinuation of cetirizine, pruritus (intense itching) and/or urticaria have been reported. 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 and development 6. If you or your child have been prescribed cetirizine, follow your doctor's instructions about how and when to take it.

h. The distribution of pharmacokinetic parameters such as peak plasma concentration (Cmax) and area under curve (AUC), is unimodal in human volunteers. In the event of any safety concerns or for any other information about a product please carefully read any instructions provided on the label or packaging and contact the manufacturer. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. An exception is when you want the medicine to make you sleepy – for example, if you have itchy skin that's keeping you awake.Response to allergy skin tests are inhibited by antihistamines and a wash-out period (of 3 days) is required before performing them. Paediatric population: The half-life of cetirizine was about 6 hours in children of 6-12 years and 5 hours in children 2-6 years. Cetirizine is classed as a non-drowsy antihistamine, but it's still possible to feel sleepy after taking it. Cetirizine is available on prescription as well as being bought over the counter from pharmacies and supermarkets. Instances of abnormal hepatic function with elevated hepatic enzymes accompanied by elevated bilirubin have been reported.

For cetirizine prospectively collected data on pregnancy outcomes do not suggest potential for maternal or foetal/ embryonic toxicity above background rates. Cetirizine is an antihistamine medicine, most commonly found in hay fever and allergy tablets to help relieve symptoms of sneezing, coughing, runny or blocked noses as well as watery and itchy eyes. You may have additional manufacturer's warranties with some products, such as electrical items, giving you additional rights and you should check these carefully.Do not take Cetirizine 10 mg tablets if you have a severe kidney disease (severe renal failure with creatinine clearance below 10 ml/min).

If your doctor or health visitor says your baby is healthy, you can take cetirizine while breastfeeding. In paediatric patients suffering from renal impairment, the dose will have to be adjusted on an individual basis taking into account the renal clearance, age and body weight of the patient. Adverse effects such as confusion, diarrhoea, dizziness, tiredness, headache, ailing, dilating (widening) of the pupil, itching, restlessness, sedation, somnolence, stupor, abnormal rapid heart rate, tremors and urinary retention have been reported. Common side effects include headaches, dry mouth, feeling sick, dizziness, stomach pain and diarrhoea. Undesirable effects are described according to MedDRA System Organ Class and by estimated frequency based on post-marketing experience.

However, other antihistamines such as loratadine may be recommended as there is more information about its use in pregnancy.