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. These drugs contain both cetirizine and the decongestant pseudoephedrine.
Pseudoephedrine is a stimulant and can make certain health conditions worse. Your doctor may tell you that cetirizine-D is not for you if you have any of these conditions:. Cetirizine is an OTC drug that can relieve mild to moderate allergy symptoms. Like any drug, especially OTC medication, you should understand all of the considerations before you start taking it.
Talk to your doctor about any questions you have about your symptoms and any other conditions you may have.
Your doctor may recommend a different antihistamine or a combination drug of cetirizine and another product that may require a prescription.
Learn more about the ways you can treat a stuffy nose, or nasal congestion, at home, including tips on decongestants, humidifiers, and steam remedies. Allegra Allergy and Claritin are over-the-counter allergy medications. While they both treat allergy symptoms, they're not identical medications.
Allergic rhinitis, or hay fever, is your body's response to specific allergens. It causes uncomfortable symptoms like sneezing and itchy eyes. Zyrtec and Claritin are similar over-the-counter allergy medicines. Your choice may come down to a subtle difference. Taking cetirizine might make these side effects worse. There might be a problem taking some herbal remedies and supplements alongside cetirizine, especially ones that cause sleepiness, a dry mouth, or make it difficult to pee.
Tell your doctor or pharmacist if you're taking any other medicines, including herbal medicines, vitamins or supplements. Cetirizine is a type of medicine called an antihistamine. When you come into contact with something you're allergic to, such as pollen, animal hair or fur, your body produces a chemical called histamine.
Usually histamine is a useful substance, but in an allergic reaction it causes unpleasant symptoms including itchy, watery eyes, a running or blocked nose, sneezing and skin rashes.
For example, if you have a reaction to an insect bite, you may only need to take cetirizine for a day or two. You may need to take cetirizine for longer if you're taking it to prevent symptoms — for example, to stop hay fever when the pollen count is high. Talk to your doctor or pharmacist if you're unsure how long you need to take cetirizine for. However it's best to take cetirizine only for as long as you need to. 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. The objective of the law is to eliminate the use of pseudoephedrine in the illegal production of meth.
By law, products containing pseudoephedrine must now be sold behind the counter and through online retailers who must meet certain requirements. Note that products containing pseudoephedrine remain available without a prescription in most states. Other items like kitchen teaspoons, droppers or measuring devices that come with other medicines may not be accurate. There is no difference.
Both products contain 10mg of cetirizine in the same citrus flavor and can be taken by both adults and children 6 years and older. Allergies affect more than 50 million people in the United States alone. People with allergies can experience lots of symptoms, including sneezing, runny nose, stuffy nose nasal congestion , or itchy, watery eyes. If you only develop upper respiratory symptoms at certain times of the year often spring or fall , you probably have seasonal allergic rhinitis, or outdoor allergies.
These allergies can be triggered by trees, grass and weed pollens, or outdoor mold. Learn more about outdoor allergies. Common triggers include animal dander tiny skin flakes or saliva from animals , indoor mold and dust mites. Learn more about indoor allergies.
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