How many times a day can you take Zyrtec. What is the recommended dosage of cetirizine for adults and children. Are there any precautions when using Zyrtec. How does cetirizine work to relieve allergy symptoms.

Understanding Zyrtec (Cetirizine) and Its Uses

Zyrtec, also known by its generic name cetirizine, is a popular over-the-counter antihistamine medication used to relieve allergy symptoms. It belongs to a class of drugs called second-generation antihistamines, which are known for causing less drowsiness compared to older antihistamines.

Cetirizine is effective in treating various allergic conditions, including:

• Hay fever
• Allergic conjunctivitis (red, itchy eyes)
• Eczema
• Hives (urticaria)
• Reactions to insect bites and stings
• Some food allergies

The medication works by blocking the action of histamine, a substance produced by the body during an allergic reaction. By doing so, it helps alleviate symptoms such as sneezing, runny nose, itchy eyes, and skin rashes.

Zyrtec Dosage Guidelines for Adults

For adults under 65 years of age, the recommended dosage of Zyrtec is typically 10 mg once daily. This can be taken in the form of one 10 mg tablet, two 5 mg tablets, or 10 mL of liquid Zyrtec. It’s important not to exceed this dosage within a 24-hour period unless directed by a healthcare professional.

Adults aged 65 and over should consult with their doctor before taking Zyrtec, as they may require a lower dosage due to potential age-related changes in metabolism and kidney function.

Can you take Zyrtec more than once a day?

Generally, Zyrtec is designed to be taken once daily. Its long-lasting effects typically provide 24-hour relief from allergy symptoms. Taking more than the recommended dose or taking it more frequently than once a day is not advised and may increase the risk of side effects without providing additional benefits.

Zyrtec Dosage for Children

The appropriate Zyrtec dosage for children depends on their age and the severity of their symptoms. Here’s a breakdown of the recommended dosages:

• Children under 2 years: Consult a doctor before administering Zyrtec
• Children 2 to under 6 years: 2.5 mL once daily, which can be increased to a maximum of 5 mL once daily or 2.5 mL every 12 hours if needed
• Children 6 years and older: 5 mL or 10 mL once daily, depending on symptom severity

It’s crucial not to exceed the maximum recommended dose for each age group within a 24-hour period. Always consult with a pediatrician before giving Zyrtec to young children, especially those under 2 years of age.

Special Considerations and Precautions

While Zyrtec is generally safe for most people, there are certain groups who should exercise caution or seek medical advice before using this medication:

• Adults 65 years and over: Should consult a doctor for appropriate dosing
• Individuals with liver or kidney disease: Should seek medical advice before use
• Pregnant or breastfeeding women: Should consult their healthcare provider
• People with a history of allergies to antihistamines: Should avoid Zyrtec

Additionally, some Zyrtec products, particularly capsules, may contain soya oil. Individuals with peanut or soya allergies should avoid these formulations and opt for alternative forms of the medication.

Different Forms of Zyrtec and Their Usage

Zyrtec comes in various forms to suit different preferences and needs:

• Tablets: Standard 10 mg tablets for adults and children 6 years and older
• Liquid: Suitable for children and adults who have difficulty swallowing tablets
• Chewable tablets: Available in 5 mg and 10 mg strengths, ideal for those who prefer not to swallow whole tablets
• Capsules: 10 mg capsules for adults and children 12 years and older

Each form has specific dosing instructions, but generally, they all adhere to the principle of not exceeding 10 mg per day for most adults and children over 6 years old.

Potential Side Effects of Zyrtec

While Zyrtec is considered a non-drowsy antihistamine, some individuals may still experience drowsiness or other side effects. Common side effects include:

• Headaches
• Dry mouth
• Nausea
• Dizziness
• Diarrhea
• Fatigue

These side effects are typically mild and often improve as the body adjusts to the medication. However, if side effects persist or worsen, it’s advisable to consult a healthcare professional.

Can Zyrtec cause drowsiness?

Although Zyrtec is marketed as a non-drowsy antihistamine, some users may still experience drowsiness. The likelihood of experiencing this side effect can vary from person to person. If you find that Zyrtec makes you drowsy, it’s best to take it in the evening or before bedtime.

Interactions with Other Medications and Substances

Zyrtec may interact with certain medications and substances, potentially affecting its efficacy or increasing the risk of side effects. It’s important to be aware of these potential interactions:

• Alcohol: Can increase drowsiness and dizziness
• Central nervous system depressants: May enhance sedative effects
• Theophylline: May increase the risk of side effects from theophylline
• Ritonavir: May increase cetirizine levels in the body

Always inform your healthcare provider about all medications, supplements, and herbal products you’re taking before starting Zyrtec.

Long-term Use of Zyrtec

Zyrtec is generally considered safe for long-term use in most adults and children. However, it’s always best to use the lowest effective dose for the shortest duration necessary to control symptoms.

Is it safe to take Zyrtec daily?

For many people with chronic allergies, taking Zyrtec daily can be safe and effective when used as directed. However, if you find yourself needing to use Zyrtec daily for an extended period, it’s advisable to consult with your healthcare provider. They can assess your specific situation and determine if continued daily use is appropriate or if alternative treatments should be considered.

In some cases, your doctor might recommend periodic breaks from the medication to assess whether your allergy symptoms have improved or changed over time. This approach, sometimes called a “drug holiday,” can help prevent unnecessary long-term use and allow your body to reset.

Alternatives to Zyrtec

While Zyrtec is effective for many people, it’s not the only option available for allergy relief. Other antihistamines and allergy treatments include:

• Loratadine (Claritin): Another non-drowsy antihistamine
• Fexofenadine (Allegra): Known for its long-lasting effects
• Diphenhydramine (Benadryl): An older antihistamine that may cause more drowsiness
• Nasal corticosteroids: Such as fluticasone (Flonase) or mometasone (Nasonex)
• Leukotriene modifiers: Like montelukast (Singulair)

The choice of allergy medication depends on individual factors such as the type and severity of allergies, personal response to different medications, and potential side effects. It’s always best to consult with a healthcare professional to determine the most suitable treatment for your specific needs.

Can you switch between different antihistamines?

It is generally safe to switch between different second-generation antihistamines like Zyrtec, Claritin, and Allegra. However, it’s advisable to wait 24 hours after your last dose of one antihistamine before starting another. This allows time for the previous medication to clear from your system, reducing the risk of side effects or interactions.

If you’re considering switching antihistamines, it’s a good idea to consult with your healthcare provider or pharmacist. They can provide guidance on the best approach based on your individual health history and specific allergy symptoms.

Managing Allergies Beyond Medication

While antihistamines like Zyrtec can be highly effective in managing allergy symptoms, there are additional steps you can take to reduce your exposure to allergens and improve your overall quality of life:

1. Identify and avoid triggers: Keep a diary to track when your symptoms occur and what might be causing them.
2. Use air filters: High-efficiency particulate air (HEPA) filters can help remove allergens from indoor air.
3. Keep windows closed: During high pollen seasons, keep windows closed and use air conditioning if possible.
4. Wash bedding regularly: Use hot water to kill dust mites and remove allergens.
5. Vacuum frequently: Use a vacuum with a HEPA filter to reduce allergens in carpets and upholstery.
6. Consider immunotherapy: For severe or persistent allergies, talk to an allergist about allergy shots or sublingual immunotherapy.

By combining these strategies with appropriate medication use, many people find significant relief from their allergy symptoms and an improved quality of life.

When to Seek Medical Advice

While Zyrtec is generally safe and effective for most people, there are situations where it’s important to consult a healthcare professional:

• If your allergy symptoms are severe or do not improve with over-the-counter treatments
• If you experience unusual or severe side effects from taking Zyrtec
• If you have chronic health conditions or are taking other medications
• If you’re pregnant or breastfeeding
• If you’re considering giving Zyrtec to a child under 2 years old
• If you need to use Zyrtec daily for an extended period

A healthcare provider can assess your individual situation, consider any potential risks or interactions, and recommend the most appropriate treatment plan for your allergy symptoms.

Are there any signs of an allergic reaction to Zyrtec itself?

While rare, it is possible to have an allergic reaction to Zyrtec. Signs of a serious allergic reaction may include:

• Rash or hives
• Itching or swelling, especially of the face, tongue, or throat
• Severe dizziness
• Trouble breathing

If you experience any of these symptoms after taking Zyrtec, seek immediate medical attention. It’s important to note that these reactions are uncommon, and most people tolerate Zyrtec well.

The Future of Allergy Treatment

As research in the field of allergies and immunology continues to advance, new treatments and approaches are being developed. Some areas of ongoing research include:

• Targeted biologics: Medications that target specific components of the immune system involved in allergic reactions
• Improved immunotherapy: More effective and convenient methods of desensitizing the immune system to specific allergens
• Personalized medicine: Tailoring treatments based on an individual’s genetic profile and specific allergy triggers
• Novel drug delivery systems: Exploring new ways to administer antihistamines and other allergy medications for improved efficacy and reduced side effects

While these advancements are promising, it’s important to remember that current treatments like Zyrtec remain effective for many people. Always consult with healthcare professionals to stay informed about the latest treatment options and determine the best approach for your specific allergy needs.

How might future antihistamines differ from current options like Zyrtec?

Future antihistamines may offer several improvements over current options:

• Enhanced specificity: Targeting only the histamine receptors involved in allergic reactions, potentially reducing side effects
• Longer duration of action: Providing relief for extended periods, possibly requiring less frequent dosing
• Improved safety profile: Minimizing interactions with other medications and reducing the risk of drowsiness
• Combination therapies: Incorporating multiple mechanisms of action in a single medication for more comprehensive symptom relief

As research progresses, these advancements may lead to more effective and convenient allergy treatments, building upon the foundation established by medications like Zyrtec.

Zyrtec Dosing Charts for Adult & Children’s Cetirizine Products

Products ∕ ZYRTEC® Dosing Charts For Adult and Children’s Cetirizine HCl Products

Whether you need to know ZYRTEC® dosages for adults or children, check out our dosing charts and FAQs for the ZYRTEC® family of products, to find all the information you need.

When taking any medication, it’s important to take the recommended dosage. If you’re in doubt, follow the instructions on the product packaging or our dosage chart below.

Filter by:

Use only as directed.

Under 2
Ask a doctor

2 to under 6 years
2.5 mL once daily. If needed, dose can be increased to a maximum of 5mL once daily or 2.5 mL every 12 hours

Do not give more than 5 mL in 24 hours

6+ years
5 mL or 10 mL once daily depending on severity of symptoms.

Do not give more than 10 ml in 24 hours

Adults 65 years and over
5 mL once daily; do not take more than 5 mL in 24 hours.

Consumers with liver or kidney disease
Ask a doctor.

Use only as directed.

Under 2
Ask a doctor

6+ years
One 10 mg tablet once daily; do not give more than 10 mg tablet in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over
Ask a doctor.

Consumers with liver or kidney disease
Ask a doctor.

Use only as directed.

Under 2
Ask a doctor

2 to under 6 years
2.5 mL once daily. If needed, dose can be increased to a maximum of 5mL once daily or 2.5 mL every 12 hours

Do not give more than 5 mL in 24 hours

6+ years
5 mL or 10 mL once daily depending on severity of symptoms.

Do not give more than 10 ml in 24 hours

Adults 65 years and over
Chew and swallow 2 tablets (5 mg) once daily; do not take more than 2 tablets (5 mg) in 24 hours.

Consumers with liver or kidney disease
Ask a doctor.

Use only as directed.

Under 6 years
Ask a doctor.

6+ years
Chew and swallow 1 tablet (10 mg) once daily; do not give more than 1 tablet (10 mg) in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over
Ask a doctor.

Consumers with liver or kidney disease
Ask a doctor.

Use only as directed.

Children under 6 years of age
Ask a doctor

Adults under 65 and children 6 years and older
One 10 mg tablet once daily; do not take more than one 10 mg tablet in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over
Ask a doctor.

Consumers with liver or kidney disease
Ask a doctor.

Use only as directed.

Children under 6 years of age
Ask a doctor.

Adults under 65 and children 6 years and older
One 10 mg tablet once daily; do not take more than one 10 mg tablet in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over
Ask a doctor.

Consumers with liver or kidney disease
Ask a doctor.

Use only as directed.

Adults under 65 and children 12 years and older
One 10 mg capsule once daily; do not take more than one 10 mg capsule in 24 hours.

Adults 65 years and over
Ask a doctor.

Adults with liver or kidney disease
Ask a doctor.

Children under 12 years of age
Ask a doctor.

Use only as directed.

Adults and children 6 years and older
Chew and swallow 2 tablet (10 mg) once daily; do not take more than 1 tablet (10 mg) in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over
Ask a doctor.

Adults with liver or kidney disease
Ask a doctor.

Children under 6 years of age
Ask a doctor.

Cetirizine: antihistamine that relieves allergy symptoms

1. 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’s much less likely to make you feel sleepy than some other antihistamines.

Cetirizine is available on prescription, but you can also buy it from pharmacies and supermarkets.

It comes as tablets, capsules and as a liquid that you swallow.

2. Key facts

• 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.

3. Who can and cannot take cetirizine

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 – some brands of cetirizine capsules (but not tablets) contain 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

4.

How and when to take cetirizine

If you or your child have been prescribed cetirizine, follow your doctor’s instructions about how and when to take it. If it is from a pharmacy or shop, follow the instructions that come with the packet.

Dosage and strength

Cetirizine comes as tablets and capsules (10mg) and as a liquid medicine (labelled either 5mg/5ml or 1mg/1ml).

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 2.5mg, twice a day.
• 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. Swallow them whole. Do not chew them.

Cetirizine liquid may be easier for children to take than tablets. The liquid medicine will come with a plastic syringe or spoon to give the right dose. If you do not have a syringe or spoon, ask your pharmacist for one. Do not use a kitchen teaspoon as it will not measure out the right amount.

When to take it

You may only need to take cetirizine on a day you have symptoms – for example, if you have been in contact with something that has triggered your allergy, like animal hair.

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?

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.

Do not take 2 doses to make up for a forgotten dose.

If you forget to give a dose to a child who is taking cetirizine twice a day, you can give the missed dose if it’s within 4 hours of when they should have had it.

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.

If you often forget doses, it may help to set an alarm to remind you. You could also ask your pharmacist for advice on other ways to help you remember to take your medicine.

What if I take too much?

Cetirizine is generally very safe. Taking more than the usual dose is unlikely to harm you or your child.

If you take an extra dose, you might get some of the common side effects. If this happens or you’re concerned, contact your doctor.

5. Side effects

Like all medicines, cetirizine can cause side effects, although not everyone gets them.

Common side effects

The most common side effect of cetirizine is feeling sleepy and tired. This happens in more than 1 in 10 people. Talk to your doctor or pharmacist if this side effect bothers you or does not go away.

Other common side effects of cetirizine happen in more than 1 in 100 people.

Talk to your doctor or pharmacist if these side effects bother you or do not go away:

• headaches
• dry mouth
• feeling sick (nausea)
• feeling dizzy
• diarrhoea
• sore throat
• sneezing or blocked and runny nose

Children are more likely to get diarrhoea, sneezing or a blocked and runny nose than adults.

Serious side effects

It’s rare to have a serious side effect with cetirizine.

Call your doctor straight away if you have bruising or bleeding that’s more than normal.

Serious allergic reaction

In rare cases, it’s possible to have a serious allergic reaction (anaphylaxis) to cetirizine.

Immediate action required: Call 999 now if:

• your lips, mouth, throat or tongue suddenly become swollen
• you’re breathing very fast or struggling to breathe (you may become very wheezy or feel like you’re choking or gasping for air)
• your throat feels tight or you’re struggling to swallow
• your skin, tongue or lips turn blue, grey or pale (if you have black or brown skin, this may be easier to see on the palms of your hands or soles of your feet)
• you suddenly become very confused, drowsy or dizzy
• someone faints and cannot be woken up
• a child is limp, floppy or not responding like they normally do (their head may fall to the side, backwards or forwards, or they may find it difficult to lift their head or focus on your face)

You or the person who’s unwell may also have a rash that’s swollen, raised, itchy, blistered or peeling.

These can be signs of a serious allergic reaction and may need immediate treatment in hospital.

These are not all the side effects of cetirizine. For a full list, see the leaflet inside your medicines packet.

Information:

You can report any suspected side effect using the Yellow Card safety scheme.

Visit Yellow Card for further information.

6. How to cope with side effects of cetirizine

What to do about:

• feeling sleepy and tired – try a different non-drowsy antihistamine. If this does not help, talk to your doctor.
• 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.
• dry mouth – chew sugar-free gum or suck sugar-free sweets.
• feeling sick (nausea) – try taking your tablets with food. It may also help if you stick to simple meals and avoid rich or spicy food.
• feeling dizzy – if cetirizine makes you feel dizzy when you stand up, try getting up very slowly or stay sitting down until you feel better. If you begin to feel dizzy, lie down so that you do not faint, then sit until you feel better. Do not drive, cycle or use tools or machines if you feel dizzy or a bit shaky.
• 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.
• sore throat – if you’re 16 and over, you can try gargling with an aspirin solution (1 soluble aspirin tablet dissolved in half a glass of water) or use a pain-relieving mouthwash such as Oraldene. If your symptoms last longer than a week, ask your pharmacist or doctor for advice. Children under 16 must not be given aspirin.
• sneezing or blocked and runny nose – try a different non-drowsy antihistamine. If this does not help, talk to your doctor.

7. Pregnancy and breastfeeding

Cetirizine can be used in pregnancy. There is no good evidence that it causes harm to the baby. However, other antihistamines such as loratadine may be recommended as there is more information about its use in pregnancy.

Cetirizine and breastfeeding

If your doctor or health visitor says your baby is healthy, you can take cetirizine while breastfeeding.

There is some information available which shows that only very small amounts get into breast milk. Cetirizine has been used for many years while breastfeeding without side effects in babies.

If your baby is not feeding as well as usual, seems unusually sleepy, or if you have any other concerns about your baby, talk to your doctor, pharmacist, health visitor or midwife.

Non-urgent advice: Tell your doctor if you’re:

• trying to get pregnant
• pregnant
• breastfeeding

Find out more about how cetirizine can affect you and your baby during pregnancy on the Best Use of Medicines in Pregnancy (BUMPS) website.

8. Cautions with other medicines

Some medicines can increase the chances of you having side effects with cetirizine.

Check with your pharmacist or doctor if you’re taking any medicine that makes you drowsy, gives you a dry mouth, or makes it difficult for you to pee. Taking cetirizine might make these side effects worse.

Mixing cetirizine with herbal remedies and supplements

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.

Important:
Medicine safety

Tell your doctor or pharmacist if you’re taking any other medicines, including herbal medicines, vitamins or supplements.

9. Common questions about cetirizine

How does cetirizine work?

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.

Cetirizine blocks the effects of histamine and reduces these symptoms.

When will I feel better?

You should start to feel better within an hour.

How long should I take cetirizine for?

It depends on why you’re taking cetirizine.

You may only need to take it for a short time or as a one-off dose.

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.

Is it safe to take cetirizine for a long time?

Cetirizine is unlikely to do you any harm if you take it for a long time.

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.

Can I drink alcohol with it?

It’s best not to drink alcohol while you’re taking cetirizine as it can make you feel sleepy.

Is there any food or drink I need to avoid?

You can eat and drink normally while taking cetirizine.

Can I drive or ride a bike with it?

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. GOV.UK has more information on the law on drugs and driving.

What’s the difference between cetirizine and other antihistamines?

Cetirizine is known as a non-drowsy antihistamine. 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.

What’s the difference between cetirizine and other non-drowsy antihistamines?

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.

Can I take it with painkillers?

Yes, you can take cetirizine together with paracetamol or ibuprofen.

Can I take 2 types of antihistamine in 1 day?

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.

Do not take 2 antihistamines together unless recommended by your doctor.

Can I take cetirizine with other hay fever treatments?

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.

Can I take cetirizine at higher doses than on the packet?

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.

Will it affect my fertility?

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.

Will it affect my contraception?

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.

Can lifestyle changes relieve hay fever?

It’ll help if you do not spend too much time outside if the pollen count is high.

Tips for when you’re outside

• Do not cut grass or walk on grass.
• Wear wraparound sunglasses to stop pollen getting into your eyes.
• Put Vaseline around your nostrils to help trap pollen.
• Shower and change your clothes after you have been outside to wash off pollen.

Tips for when you’re inside

• Keep windows and doors shut as much as possible.
• Vacuum regularly and dust with a damp cloth.
• Do not keep fresh flowers in the house.
• Do not smoke or be around smoke as it makes hay fever symptoms worse.

Dosage, analogues, active substance, for which it is prescribed

Date of publication: 25.08.2022 POSSIBLE SIDE EFFECTS. A SPECIALIST’S CONSULTATION IS REQUIRED.

• Zyrtec: what is it for
• Zyrtec: active ingredient
• Zyrtec: composition
• Zirtek: dosage
• Zirtek: drops for children
• Zirtek: analogues
• Zirtek or Zodak: which is better
• Zirtek or Cetrin: which is better
• Zirtek or Erius: which is better 9 0016
• Summary
• Ask an expert on the topic of the article

Allergic rhinitis is a disease accompanied by itching in the nasal cavity, endless watery discharge from the nose, paroxysmal sneezing and absolute nasal congestion. And such symptoms appear with the beginning of flowering plants. It’s all about the reaction of the body to irritating factors from the outside. In the case of allergic rhinitis, this is plant pollen.

During this period, people suffering from this disease are helped by antihistamines. One of them is Zyrtec. We asked pharmacist Kristina Khokhrina to tell us more about it, and this is what she told us: what it is used for, what is included in the composition of the product, in what dosage it is used and whether it is suitable for children. We also provided a small list of similar antihistamines and found differences between Zirtek and Zodak, Citrine and Erius.

All products Zyrtec

3 reviews

Zyrtec: what

Zyrtec is used for for allergies. The main indications for the use of Zirtek:

• allergic rhinitis
• allergic conjunctivitis
• symptoms of chronic urticaria

The drug acts on the skin one hour after ingestion. Maximum efficiency is achieved within 2-12 hours. The effect gradually decreases, but persists for a day.

Zyrtec: active ingredient

Zyrtec: composition

Zyrtec is available in two forms: drops and tablets. Let’s talk about the composition of both drugs. The active substance in both forms is the same, only the auxiliary components change, since they determine the form of the drug.

Zyrtec drops: glycerol, propylene glycol, sodium saccharinate, methylparabenzene, propylparabenzene, sodium acetate, glacial acetic acid, purified water.

Zyrtec tablets: microcrystalline cellulose, lactose monohydrate, colloidal silicon dioxide, magnesium stearate, hypromellose, titanium dioxide, macrogol.

Zyrtec: dosage

The dosage of Zyrtec is determined by the amount of active ingredient per 1 ml drops or 1 tablet. In both cases, cetirizine is contained in a dosage of 10 mg.

The drug is prescribed for adults and children from 6 months. For each age, a certain dose is established. The manufacturer recommends taking Zirtek in the evening, as the symptoms of allergic diseases are most pronounced at night. It is taken with or without food and can be taken with water as needed.

Adults are advised to take 20 drops or 1 tablet once a day, which corresponds to a dosage of the substance 10 mg. Reception Zirtek in drops can be single in the evening or divided into 2 doses. For example, 10 drops in the morning and evening.

Zyrtec side effects

Zyrtec may rarely cause the following side effects:

• general fatigue
• dizziness
• headache
• abdominal pain
• dry mouth
• nausea
• drowsiness

Children may additionally develop diarrhea. When taking medication, pay attention to your condition. If any changes appear, described or not described in the instructions, or if allergy symptoms increase, consult a doctor.

Zyrtec Drops for Children

Zyrtec should only be used in children aged 6 to 12 months on prescription and under the supervision of a physician. The drug is prescribed depending on age:

• 6 to 12 months: Take 5 drops (2.5 mg) once a day
• 1 to 6 years: Take 5 drops (2.5 mg) twice a day in the morning and evening, or 10 drops (5 mg) once a day in the evening
• 6 to 12 years: Take 20 drops (10 mg) once daily
• over 12 years old: take 20 drops (10 mg) once a day

Zyrtec may be used during pregnancy after consulting a physician only if the intended benefit to the mother outweighs the potential risk to the fetus. The same applies to use during lactation, since cetirizine passes into the mother’s breast milk.

Zyrtec: analogues

Zyrtec is one of the representatives of the group of antihistamines. Its analogues contain the same active ingredient: cetirizine:

• Cetirizine
• Zincette
• Zodak
• Cetrin
• Sensor
• Soloneks

Preparations with a different composition, for example, Erius, can also be analogues of Zirtek. Let’s compare Zodak with some of the remedies from this list.

Zyrtec or Zodak: which is better

The preparations have the same active substance, which defines them as antiallergic agents. Indications for use, dosage of the active substance, side effects and other characteristics of Zirtek and Zodak are the same.

The drugs are as similar as possible and even have the same forms of release: drops and tablets. The only difference is the manufacturers. Zyrtec is made in Switzerland, and Zodak is made in Russia, which is reflected in the price of the funds. Therefore, when choosing what is better to buy: Zodak or Zirtek, be guided by your preference, since the drugs are identical in terms of effectiveness.

Zyrtec or Cetrin: which is better

Similar to Zyrtec, Cetrin contains the same active ingredient in the same dosage of tofu. According to their characteristics, the preparations are identical, except that only Cetrin’s indications are slightly wider. It is additionally used for:

• itching allergic dermatoses: atopic dermatitis, etc.
• angioedema angioedema

Cetrin is available in tablet form only and is indicated for use in adults and children over 6 years of age, just like Zyrtec tablets. Manufacturers of drugs are also different, Citrine is produced in India. When choosing products, pay attention to the age of the patient and your preference in the manufacturer.

Zirtek or Erius: what is better

Zirtek and Erius are drugs for allergic manifestations. Their most important difference is the active substance.

Erius – contains desloratadine. It is produced in the form of tablets and syrup. The dosage of the active substance is 5 mg per 1 tablet and 0.5 mg per 1 ml of syrup. Erius is used by adults and children from 12 years old, and syrup can be given from 1 year old. The use of Erius does not adversely affect driving.

The method of administration depends on the age of the patient. Of course, manufacturers also differ: Erius is a Belgian drug.

Zyrtec – contains cetirizine. There are much more contraindications for use than Erius. Caution should be exercised when driving vehicles, as cetirizine causes drowsiness.

Thus, when choosing an antihistamine Erius or Zodak, pay attention to the list of contraindications and side effects. Especially if your activity is connected with increased concentration of attention.

All products Cetrin

20 reviews

All products Zodak

20 reviews

All products Erius

20 reviews

Summary

• Zirtek is an antihistamine that is used to eliminate allergic reactions in allergic rhinitis and conjunctivitis, as well as urticaria.
• The active substance of Zyrtec is cetirizine, and the auxiliary components depend on the form of release: drops or tablets.
• The dosage of Zyrtec is the same, for example, 1 tablet or 20 drops of the drug contains 10 mg of the active ingredient.
• Both forms of Zyrtec are suitable for children, tablets can be taken from 6 years and drops from 6 months.
• Zyrtec analogues include many products, some of them have different active ingredients.
• When comparing Zyrtec with Zodak, we found differences only in drug manufacturers. Cetrin is distinguished by the absence of a release form in the form of drops and also by the manufacturer. But Erius has the largest number of differences, which we described in the article.

Ask an expert about Article

Still have questions? Ask them in the comments below and our experts will answer you. There you can also share your experience with other readers of Megasovets.

Share the mega tip

Like this article? Tell mom, dad, grandma and aunt Galya from the third entrance

Copy link

Zirtek

Turn the phone vertically

Home
Recommendations
Medicine for the whole family
Proven drug
Drops
Pills
Diagnostics
Treatment
Causes of Allergy
Where can I buy?

Where can I buy?

We use cookies
To learn more

HAS CONTRAINDICATIONS. YOU NEED TO CONSULT A

TECHNICIAN

Recommended for: ¹

• perennial and seasonal
  allergic rhinitis
• allergic conjunctivitis
• chronic idiopathic
  urticaria

runny nose

lacrimation

redness
eye

itching

stuffiness
nose

sneezing

• Drops for children over 6 months*
• Sugar Free Zyrtec® Drops,
  Colors and Flavors,
  Zyrtec Tablets Free
  cornstarch ¹
• Original
  Allergy Latest Generation ^3.4

* Use in children from 6 to 12 months is possible only
by prescription and under strict medical
control

Original
drug ³

allergist and pediatrician’s choice 2020 ²

Validated in a large number of clinical trials

^{4 902 13}

Tablets and drops for
adults and children over 6 years old ¹

Drops

Pills

• For allergy symptoms for children over 6 months ^*
• Helps alleviate symptoms of allergic rhinitis and urticaria all day long ^{1. 6}
• Zyrtec® drops do not contain sugar, dyes or flavors, so Zyrtec® does not cause
  additional allergic reactions associated with these substances ^1.7
• “No. 1 in the appointment of Russian pediatricians and allergists in 2020” ²

Download manual

• For allergy symptoms for adults and children over 6 years old ¹
• Helps alleviate symptoms of allergic rhinitis and urticaria all day long ^1.6
• Zyrtec® tablets do not contain cornstarch, so Zyrtec® does not cause additional
  allergic reactions associated with this substance ^1.7
• Zyrtec® is approved for use during pregnancy with caution ^{* 1}
• “No. 1 according to the appointments of Russian allergists in 2020” ^*

^* According to the study PrIndexTM “Monitoring of doctors’ prescriptions” conducted by Ipsos Comcon LLC
in the spring of 2020 in large cities of Russia, of all medicines belonging to the category R06A
“Antihistamines for systemic use”, prescribed by allergists
outpatient clinics in large cities of Russia, Zyrtec® accounts for 11.