Cetirizine also helps relieve hives. Hives are itchy, raised rashes on the skin. They often occur with food or medication allergies. The usual dosage for adults younger than 65 years and children who are 6 years and older is one milligram mg dose per day. Your doctor may recommend a 5-mg dose once or twice per day if your allergies are mild.
Cetirizine is a newer, second-generation antihistamine. Unlike first-generation antihistamines, cetirizine is less likely to cause side effects such as dangerous drowsiness, dry mouth, blurred vision, and overheating.
Tell your doctor about any unexpected side effects that you have while taking cetirizine. Also, discuss any ongoing or bothersome side effects. These side effects are usually not emergencies. Be cautious. Taking cetirizine is generally safe during pregnancy. If you have liver or kidney disease, ask your doctor about taking cetirizine. For example, avoid consuming alcoholic drinks while you take cetirizine. Doing so may be dangerous.
Mixing cetirizine with alcohol can cause drowsiness or make you less alert. If you take any type of tranquilizer, sedative, or sleep aid, make sure to mention this to your doctor before you use cetirizine. Mixing cetirizine with drugs that depress your central nervous system can increase sleepiness. It can also further affect your mental and nervous system functions. There is a possibility of a drug interaction between cetirizine and theophylline.
Theophylline Theo is a drug that some people with asthma and other lung problems take. In some instances when the two drugs were taken, it took longer for cetirizine to leave the body. However, the interaction may be dose-related. It has only been reported with daily theophylline doses of mg or more. Cetirizine-D and brand-name versions, such as Zyrtec-D, are combination drugs. If you take it regularly over a long period there's a very small chance of severe itching if you stop treatment suddenly.
If you've been taking cetirizine every day for a long time, talk to your doctor before stopping it. It's best not to drink alcohol while you're taking cetirizine as it can make you feel sleepy. Cetirizine is classed as a non-drowsy antihistamine, but it's still possible to feel sleepy after taking it. If this happens to you, do not drive a car, ride a bike, use tools or machinery until you do not feel tired anymore. It's an offence to drive a car if your ability to drive safely is affected.
It's your responsibility to decide if it's safe to drive. If you're in any doubt, do not drive. Talk to your doctor or pharmacist if you're unsure whether it's safe for you to drive while taking cetirizine. UK has more information on the law on drugs and driving. That's because it's less likely to make you feel sleepy than sedating antihistamines, such as Piriton chlorphenamine. Most people prefer to take a non-drowsy antihistamine instead of one that makes them drowsy.
An exception is when you want the medicine to make you sleepy — for example, if you have itchy skin that's keeping you awake. Other non-drowsy antihistamines, such as loratadine , desloratadine, fexofenadine and levocetirizine, seem to work just as well as cetirizine. But cetirizine seems to be more likely to make you feel sleepy than loratadine, desloratadine or fexofenadine. Yes, you can take cetirizine together with paracetamol or ibuprofen.
Sometimes doctors recommend that people with a severe, itchy skin rash take 2 different antihistamines together for a few days. As well as taking a non-drowsy antihistamine during the day such as cetirizine or loratadine , your doctor may advise that you take a drowsy antihistamine at night time if the itching is making it difficult to sleep.
Yes, it's fine to take cetirizine together with some other hay fever treatments — for example, steroid nasal sprays such as beclometasone Beconase , Rhinocort Aqua and Flixonase Nasules or eye drops. Your doctor may prescribe a higher dose of cetirizine up to 4 times the usual dose for you or your child, for a severe, itchy skin rash or swelling under the skin angioedema.
Taking high doses of cetirizine is not suitable for everyone though. Speak to your doctor if you think cetirizine is not working for you. There's no evidence to suggest that taking certirizine will reduce fertility in either men or women. Speak to a pharmacist or your doctor before taking it if you're trying to get pregnant. Cetirizine does not affect any type of contraception, including the combined pill and emergency contraception. However, if cetirizine makes you vomit or have severe diarrhoea for more than 24 hours, your contraceptive pills may not protect you from pregnancy.
Check the pill packet to find out what to do. Read more about what to do if you're on the pill and you're being sick or have diarrhoea. It'll help if you do not spend too much time outside if the pollen count is high. Page last reviewed: 15 October Next review due: 15 October Cetirizine - Brand names: Benadryl Allergy, Piriteze Allergy, Zirtek Allergy On this page About cetirizine Key facts Who can and cannot take cetirizine How and when to take cetirizine Side effects How to cope with side effects of cetirizine Pregnancy and breastfeeding Cautions with other medicines Common questions about cetirizine.
About cetirizine Cetirizine is an antihistamine medicine that helps the symptoms of allergies. It's used to treat: hay fever conjunctivitis red, itchy eye eczema hives urticaria reactions to insect bites and stings some food allergies Cetirizine is known as a non-drowsy antihistamine. It comes as tablets, capsules and as a liquid that you swallow.
Help us improve our website Can you answer a quick question about your visit today? It's usual to take cetirizine once a day. Children aged under 12 take it twice a day. Cetirizine is classed as a non-drowsy antihistamine, but some people still find it makes them feel quite sleepy.
Common side effects include headaches, dry mouth, feeling sick, dizziness and diarrhoea. Some brands of cetirizine come as capsules. These may contain soya oil. Do not take cetirizine capsules if you are allergic to peanuts or soya. Some Benadryl products do not contain cetirizine, but a different antihistamine such as acrivastine. Most adults can take cetirizine. Children Children aged 1 and over can take cetirizine liquid if prescribed by their doctor.
Children aged 2 and over can take cetirizine liquid bought from pharmacies or prescribed by their doctor. Children aged 6 and over can take cetirizine tablets and liquid that you buy from pharmacies and supermarkets. Children aged 12 and over can take cetirizine capsules, tablets and liquid that you buy from pharmacies and supermarkets. Who may not be able to take cetirizine Cetirizine is not suitable for some people.
To make sure it's safe for you, tell your doctor or pharmacist if you: have ever had an allergic reaction to cetirizine or any other medicine have an allergy to food additives have an allergy to peanuts or soya have kidney failure have epilepsy or another health problem that puts you at risk of having seizures or fits have a condition that means you have difficulty peeing 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.
The usual dose for adults is 10mg once a day. Doses are usually lower for people with kidney problems. Children For children between 6 to 11 years of age, the usual dose is 5mg, twice a day. Try to leave 10 to 12 hours between doses. So, one first thing in the morning, and one before bedtime. For children between 2 to 5 years of age, the dose is 2. For children between 1 to 2 years of age, your doctor will use their weight or age to work out the right dose. How to take it You can take cetirizine with or without food, but always take the tablets or capsules with a drink of water, milk or squash.
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