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Allercet 5mg/5ml Syrup

Cetirizine (5mg/5ml)
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Allercet 5mg/5ml Syrup is given to children to treat various symptoms such as watery eyes, runny nose, sneezing, and itching associated with allergic conditions like hay fever, urticaria (hives), conjunctivitis (red, itchy eye), and common cold.

Written By Dr. Swati Mishra, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 01 Jan 2026 | 09:03 PM (IST)
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General Information

The content is shown in English
Allercet 5mg/5ml Syrup image
Allercet 5mg/5ml Syrup image

Your child’s medicine at a glance

Give this medicine to your child orally with or without food in the dose, time, and way prescribed by your child’s doctor. It could either be prescribed alone or in combination with other medicines. The allergic symptoms may subside after your child has taken the initial few doses of Allercet 5mg/5ml Syrup. In case of serious allergic conditions, your child may have to continue taking the medicine for a week or two. If your child vomits within 30 minutes of taking this medicine, repeat the same dose after your child feels better. But, refrain from doing so if it is already time for the next dose.

Your child may experience mild side effects like nausea, vomiting, dry mouth, dizziness, sleepiness, and headache after taking this medicine. These symptoms are usually non-serious and disappear on their own. However, in case of prolonged or bothersome events, it would be best to consult your child’s doctor without any delay.

Inform your child’s doctor if your child is on any medicines or is allergic to any medicine, product, or food. Do inform the doctor if your child has or had any heart, liver, kidney problems or was born prematurely. Share any history regarding bowel obstruction, malnutrition, weight-related issues, and thyroid problems with the doctor. Knowledge of your child’s medical history will help avoid any complications in the treatment and guide your child’s doctor to plan your child’s overall treatment better.

Uses of Allercet 5mg/5ml Syrup in children

Benefits of Allercet 5mg/5ml Syrup for your child

Treatment of Allergic conditions
Allercet 5mg/5ml Syrup provides relief from symptoms such as blocked or runny nose, sneezing, and itchy or watery eyes. It can also give relief from allergic reactions after insect bites and symptoms of hives and eczema such as rash, swelling, itching, and irritation. This will improve the appearance of the skin. It rarely has any serious side effects and you may only need to take it on days you have symptoms. For individuals taking it to prevent getting symptoms one should use it regularly to get the most benefit.

Side effects of Allercet 5mg/5ml Syrup in children

Allercet 5mg/5ml Syrup does not pose serious side effects and is well-tolerated by children. In case the side effects do occur, they’re likely to subside once the body adapts to the medicine. Consult your child’s doctor if these side effects persist or bother your child. The most common side effects include-
Common side effects of Allercet
  • Muscle pain
  • Edema (swelling)
  • Fatigue
  • Nausea
  • Dryness in mouth
  • Headache
  • Sleepiness
  • Vomiting

How can I give Allercet 5mg/5ml Syrup to my child?

Take this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Measure it with a measuring cup and take it by mouth. Shake well before use. Allercet 5mg/5ml Syrup may be taken with or without food.

How Allercet Syrup works

Allercet 5mg/5ml Syrup belongs to a class of medicines called antihistamines. It blocks the natural chemical substance (histamine) produced in the body during an allergic state and subsides (lowers) your child’s immune system’s response to these conditions. As a result, the symptoms are relieved, and eventually, the condition is cured.

Quick tips

  • Try giving the medicines at the same time each day, to help you remember.
  • Your child may feel sleepy or dizzy after each dose of Allercet 5mg/5ml Syrup. If this happens, make your child sit or lie down and ask them to be careful while performing tasks that require mental focus.
  • Avoid giving Allercet 5mg/5ml Syrup with fatty meals and fruit juice as both can reduce the absorption of the medicine.
  • Dry mouth can occur as a side effect of taking Allercet 5mg/5ml Syrup. Taking sips of water may help.
  • Allercet 5mg/5ml Syrup can trigger constipation in your child. Give plenty of fluids and a fiber-rich diet to your child.
  • Allercet 5mg/5ml Syrup should be avoided in children who are less than 4 years of age as there is a risk of respiratory distress.
  • Your doctor has prescribed Allercet 5mg/5ml Syrup to help relieve allergy symptoms such as itching, swelling, and rashes.
  • It is okay to take Allercet 5mg/5ml Syrup with most other medications as it has few drug interactions.
  • Compared to other similar medications, Allercet 5mg/5ml Syrup is less likely to cause sleepiness.
  • Stop taking Allercet 5mg/5ml Syrup at least three days before taking an allergy test as it can affect the test results.

Safety advice

Kidney

Kidney

CAUTION
Allercet 5mg/5ml Syrup should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Liver

Liver

SAFE IF PRESCRIBED
Allercet 5mg/5ml Syrup is safe to use in patients with liver disease. No dose adjustment is recommended.
However, dose adjustments are required in severe liver disease. Consult your doctor before giving Allercet 5mg/5ml Syrup to your child in case of severe liver disease.

Interaction with drugs

Taking Allercet with any of the following medicines can modify the effect of either of them and cause some undesirable side effects
Moderate

Thalidomide (Oral Route)

If concurrent use is essential, watch out for symptoms of Thalidomide side effects such as drowsiness, excessive sedation, tiredness, dizziness or slurred speech and consult your doctor if you experience them. It is advised to avoid driving or undertaking other tasks requiring skill and alertness.
Moderate

Dalteparin (Injection Route)

Your doctor may frequently monitor your blood clotting time. Cetirizine may reduce the efficacy of Dalteparin.

Frequently asked questions

No, although this medicine causes drowsiness as a side effect, it should not be given to induce sleep in children. Consult your child’s doctor if your child has trouble sleeping as it could be due to some other underlying condition.
Allercet 5mg/5ml Syrup can sometimes interact with other medicines or substances. Tell your doctor about any other medicines your child is taking before starting Allercet 5mg/5ml Syrup. Also, check with your child’s doctor before giving any medicine to your child.
Allercet 5mg/5ml Syrup should be given strictly as prescribed by your child’s doctor. The dose of the medicine is calculated according to your child’s body weight and age. Do not increase or decrease the dose on your own as it may cause unwanted effects and can worsen your child’s condition.
Although Allercet 5mg/5ml Syrup is relatively safe to use in children yet an excessive amount may cause some serious side effects such as seizures, hallucinations, rapid heart rate, irritability, slow breathing, and coma.
Store Allercet 5mg/5ml Syrup at room temperature, in a dry place, away from direct heat and light. Keep all medicines out of the reach and sight of children to avoid any accidental intake.
Always consult your child’s doctor at every step in case of any confusion. However, immediate assistance may be required if your child develops serious side effects. These may include allergic reactions (such as facial swelling, trouble breathing), signs of liver problem (such as dark-colored urine, yellow eyes or skin), excessive sleepiness, rapid heartbeat, hallucinations, feeling confused or hyperactive, trouble passing urine, irritability, and vision changes.
Yes, Allercet 5mg/5ml Syrup can make you feel tired, sleepy, and weak.
Allercet 5mg/5ml Syrup is an anti-allergic medication, not a steroid. It relieves the symptoms of allergy. It is used to relieve runny nose, sneezing and redness, itching, and watering of the eyes caused by hay fever or seasonal allergies. It also relieves similar symptoms caused due to allergies to substances, such as dust mites, animal dander, and mold. It is also used to treat symptoms of hives, including itching and rash.
You will notice an improvement within an hour of taking Allercet 5mg/5ml Syrup. However, it may take a little longer to notice the full benefits.
Sometimes the doctor may advise you to take two different antihistamines together if you are being treated for a severe itchy rash. If you are taking Allercet 5mg/5ml Syrup during the daytime, your doctor may prescribe another antihistamine for the night which causes sleepiness, especially if the itch makes it difficult for you to sleep. Do not take two antihistamines together unless recommended by your doctor.
The duration for which the medicine needs to be taken depends on the problem being treated. If you are taking it for an insect bite, you may need it for a day or two. Similarly, if you are taking it to prevent symptoms of chronic allergic rhinitis (inflammation of the nose) or chronic urticaria, you may need to take Allercet 5mg/5ml Syrup for a longer time. Talk to your doctor if you are unsure about the duration of using Allercet 5mg/5ml Syrup.
Allercet 5mg/5ml Syrup is safe if used as prescribed by your doctor. Moreover, it is unlikely to harm you if you take it for a long time. But, it is best to take Allercet 5mg/5ml Syrup for only as long as you need it.

Fact Box

Chemical Class

Diphenylmethanes

Habit Forming

No

Therapeutic Class

RESPIRATORY

Action Class

Second-Generation H1 Antihistamines
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User feedback

Twice A Day
49%
Once A Day
49%
Thrice A Day
3%
Allergic conditions
100%
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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Micro Labs Ltd
Address: 27, RACE COURSE ROAD, BANGALORE-560 001, INDIA || Plot no 37 (CA) 147-151 , 279-281 ,Ground Mezzanine , 1st & 2nd Floor K.I.A.D.B JIgani Bomasandra , Link Road, Bangalore - 562106, India || Mamring Namthang Road, Namchi-737132, Sikkim

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Allercet 5mg/5ml Syrup. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India
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