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. In infants and toddlers aged 6 to 24 months, it is reduced to 3.1 hours.

Some antihistamines may not be suitable in these cases. A pharmacist or doctor can recommend one that's best for you. Most people only need to take an antihistamine for a short while when they have symptoms. You should stop taking cetirizine once your symptoms have eased. Most antihistamines can be bought from pharmacies and shops, but some are only available on prescription. Types of antihistamine Cetirizine is classed as a non-drowsy antihistamine, but some people still find it makes them feel quite sleepy. headaches – make sure you rest and drink plenty of fluids. It's best not to drink too much alcohol. Ask your pharmacist to recommend a painkiller for your headaches, but they usually go away after the first week of taking cetirizine. Talk to your doctor if your headaches last longer than a week or are severe.Cetirizine is not suitable for some people. To make sure it's safe for you, tell your doctor or pharmacist if you: Children aged 2 and over can take cetirizine liquid bought from pharmacies or prescribed by their doctor. Finding the root cause of the allergenic trigger can often mean that you can stop or limit your dog’s exposure to it, solving the problem, but this is not always possible in every case. Canine allergies can be complex, and a huge range of innocuous things can potentially trigger allergies, meaning that it is not always possible to find out what the trigger is for your own dog. Added to this, even if you can identify the trigger, it is not always possible to keep your dog from being exposed to it, for instance if one of their triggers is to something like pollen or grass. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take cetirizine film-coated tablets.

Undesirable effects are described according to MedDRA System Organ Class and by estimated frequency based on post-marketing experience. One method that's suitable for some people is immunotherapy treatment. This involves gradually introducing you to small amounts of your particular allergen and monitoring your reaction in a controlled environment. Children aged 12 and over can take cetirizine capsules, tablets and liquid that you buy from pharmacies and supermarkets. Or 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?Tell your doctor or pharmacist if you are taking, have recently taken or might take any othermedicines. The aim of this is to desensitise the immune system so that it doesn't produce such a severe reaction.

Elderly Patients: Data do not suggest that the dose needs to be reduced in elderly subjects provided that the renal function is normal. are due to have an allergy test – taking cetirizine may affect the results, so you might need to stop taking it a few days before the test are known to be allergic (hypersensitive) tocetirizine hydrochloride or any of theother ingredients (listed in section 6) or tohydroxyzine or to piperazine derivatives(closely related active substances of othermedicines)

Interaction

Oral LD50 (rat): 365 mg/kg; Intraperitoneal LDLO (mouse): 138 mg/kg; Oral TDLO (rat): 50 mg/kg; Oral TDLO (mouse): 0.1 mg/kg . Take your forgotten dose as soon as you remember, unless it's nearly time for your next dose. In this case, skip the missed dose and take your next dose at the usual time. If you remember more than 4 hours after, do not give the missed dose. Instead, wait until the next dose and carry on as normal. The extent of absorption of cetirizine is not reduced with food, although the rate of absorption is decreased. The extent of bioavailability is similar when cetirizine is given as solutions, capsules or tablets. If you drink alcohol while you are on cetirizine, be aware of its effects on you and do not drink more than moderate amounts. Alcohol can increase the risk of side-effects from antihistamines.

If you have kidney problems you should talk to your doctor or pharmacist for advice beforetaking these tablets as a lower dose may berequired. Allacan®; Benadryl® Allergy; Piriteze® Allergy; Pollenshield® Hayfever; Sentanase ® Allergy; Ziralton ® Allergy; Zirtek®; Zirtek® Allergy diarrhoea – drink plenty of water or other fluids if you have diarrhoea. Speak to a pharmacist if you have signs of dehydration, such as peeing less than usual or having dark, strong-smelling pee. Do not take any other medicines to treat diarrhoea without speaking to a pharmacist or doctor.

180 x Cetirizine (10mg) - Hay Fever & Allergy Relief Tablets

At the recommended dosage, cetirizine has demonstrated that it improves the quality of life of patients with perennial and seasonal allergic rhinitis. 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. There are a reasonably wide range of different types of antihistamines available for dogs, some of which have different active ingredients and dosage levels, and your vet will work out which one is likely to prove to be the best fit for your dog. allacan ® tablets are white to off white capsuleshaped film coated tablets with a breaklineand 'B' and 'L' embossed on either side ofthe breakline and '10' embossed on the otherside.