Kast L 5mg/10mg Tablet
Prescription Required
View available alternative with same salt composition
Your child’s medicine at a glance
Kast L 5mg/10mg Tablet is a combination medicine used in the treatment of allergic symptoms such as runny nose, stuffy nose, sneezing, itching, swelling, watery eyes, and congestion or stuffiness. It also reduces inflammation in the airways and makes breathing easier.
Kast L 5mg/10mg Tablet is taken with or without food in a dose and duration as advised by the doctor. The dose you are given will depend on your condition and how you respond to the medicine. You should keep taking this medicine for as long as your doctor recommends. If you stop treatment too early, your symptoms may come back and your condition may worsen. Let your healthcare team know about all other medications you are taking, as some may affect, or be affected by, this medicine.
The most common side effects are nausea, diarrhea, vomiting, dryness in the mouth, headache, skin rash, flu-like symptoms, and fatigue. Most of these are temporary and usually resolve with time. Contact your doctor straight away if you are at all concerned about any of these side effects. This medicine may cause dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. Avoid drinking alcohol while taking this medicine, as it can worsen your sleepiness.
Never support self-medication or recommend your medicine to another person. It is beneficial to have plenty of fluids while taking this medication. Before you start taking this medicine, inform your doctor about pregnancy, breastfeeding, or if you have any liver or kidney issues. Additionally, let your doctor also know about all the other medicines you are taking to avoid potential interactions.
Uses of Kast L 5mg/10mg Tablet in children
- Treatment of Sneezing and runny nose due to allergies
- Treatment of Hay fever
Benefits of Kast L 5mg/10mg Tablet for your child
In Treatment of Sneezing and runny nose due to allergies
Kast L 5mg/10mg Tablet is a medicine that provides relief from symptoms such as a blocked or runny nose, sneezing, and itchy or watery eyes. This will make it easier for you to go about your daily activities. It rarely has any serious side effects, and you may only need to take it on days you have symptoms. If you are taking it to prevent getting symptoms, you should use it regularly to get the most benefit.
In Treatment of Hay fever
Hay fever, also called allergic rhinitis, causes cold-like signs and symptoms, such as a runny nose, itchy eyes, congestion, sneezing, and sinus pressure. The only difference is that in hay fever, these symptoms are not produced due to a virus but are simply allergic responses of our body to allergens (allergy-causing agents such as pollen). Kast L 5mg/10mg Tablet is used to provide relief from the symptoms of hay fever. It works by blocking the release of the chemical substance responsible for producing such allergy symptoms. Kast L 5mg/10mg Tablet is a safe medicine that helps treat hay fever and makes us feel at ease.
Side effects of Kast L 5mg/10mg Tablet in children
Kast L 5mg/10mg Tablet 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 Kast L
- Nausea
- Diarrhea
- Dryness in mouth
- Fatigue
- Headache
- Skin rash
- Sleepiness
- Vomiting
- Upper respiratory tract infection
- Sore throat
- Fever
- Abdominal pain
- Increased liver enzymes
How can I give Kast L 5mg/10mg Tablet to my child?
Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Kast L 5mg/10mg Tablet may be taken with or without food, but it is better to take it at a fixed time.
How Kast L Tablet works
Kast L 5mg/10mg Tablet is a combination of two medicines: Levocetirizine and Montelukast, which relieve sneezing and a runny nose due to allergies. Levocetirizine is an antihistamine that blocks a chemical messenger (histamine) responsible for runny nose, watery eyes, and sneezing. Montelukast is a leukotriene antagonist. It works by blocking another chemical messenger (leukotriene). This reduces inflammation (swelling) in the airways and nose, and improves symptoms.
Safety advice
Kidney
CAUTION
Kast L 5mg/10mg Tablet should be used with caution in patients with kidney disease. Dose adjustment of Kast L 5mg/10mg Tablet may be needed. Please consult your doctor.
Use of Kast L 5mg/10mg Tablet is not recommended in patients with severe kidney disease.
Use of Kast L 5mg/10mg Tablet is not recommended in patients with severe kidney disease.
Liver
CAUTION
Kast L 5mg/10mg Tablet should be used with caution in patients with severe liver disease. Dose adjustment of Kast L 5mg/10mg Tablet may be needed. Please consult your doctor.
Limited information is available on the use of Kast L 5mg/10mg Tablet in these patients. No dose adjustment is recommended in patients with mild to moderate liver disease.
Limited information is available on the use of Kast L 5mg/10mg Tablet in these patients. No dose adjustment is recommended in patients with mild to moderate liver disease.
What if I forget to give Kast L 5mg/10mg Tablet to my child?
If you miss a dose of Kast L 5mg/10mg Tablet, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.
All substitutes
For informational purposes only. Consult a doctor before taking any medicines.
Kast L 5mg/10mg Tablet
₹10.3/Tablet
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Quick tips
- You have been prescribed Kast L 5mg/10mg Tablet to help relieve symptoms of allergy, such as a runny nose, sneezing, watery eyes, and cough.
- Be cautious while driving or doing anything that requires concentration, as Kast L 5mg/10mg Tablet can cause dizziness and sleepiness.
- Do not drink alcohol while taking Kast L 5mg/10mg Tablet as it may cause increased sleepiness.
- Dry mouth may occur as a side effect. Frequent mouth rinses, good oral hygiene, increased water intake, and sugarless candy may help.
- Stop taking Kast L 5mg/10mg Tablet at least three days before taking an allergy test as it can affect the test results.
Fact Box
Habit Forming
No
Therapeutic Class
RESPIRATORY
Patient concerns
FAQs
What is Kast L 5mg/10mg Tablet?
Kast L 5mg/10mg Tablet is a combination of two medicines: Montelukast and Levocetirizine. Levocetirizine is an antiallergic which helps to relieve allergy symptoms like a runny nose, sneezing, watery eyes, and cough. It works by lowering chemicals in the body that cause allergy symptoms. Montelukast works by blocking another chemical messenger (leukotriene) and reducing inflammation (swelling) in the airways and nose. This further helps to relieve the symptoms.
Can the use of Kast L 5mg/10mg Tablet cause drowsiness or sleepiness?
Yes, the most common side effect of Kast L 5mg/10mg Tablet is sleepiness. Do not drive, operate heavy machinery, or engage in other activities that need your full attention unless your doctor says that you may do so. Do not drink alcohol or take other central nervous system depressants, such as cough and cold medicines. Also, avoid taking certain pain relief medicines and medicines that help you sleep, as they can lead to severe drowsiness or worsen it, causing falls or accidents.
Can Kast L 5mg/10mg Tablet be stopped when allergy symptoms are relieved?
No, Kast L 5mg/10mg Tablet should be continued as advised by the doctor. If you experience any side effects of this medicine or the symptoms of allergy worsen, consult the doctor for re-evaluation.
Can the use of Kast L 5mg/10mg Tablet cause dry mouth?
Yes, the use of Kast L 5mg/10mg Tablet can cause dry mouth. If you experience dry mouth, drink plenty of water. Take regular sips during the day and keep some water by your bed at night. You may use lip balm if your lips are also dry.
Can I drink alcohol while taking Kast L 5mg/10mg Tablet?
No, do not take alcohol while taking Kast L 5mg/10mg Tablet. Drinking alcohol will increase the severity of drowsiness/sleepiness caused by Kast L 5mg/10mg Tablet.
Will Kast L 5mg/10mg Tablet be more effective if taken in higher doses?
No, taking a higher dose of this medicine than recommended will not make it more effective. Consuming higher than the recommended dose of Kast L 5mg/10mg Tablet can cause increased side effects. If the symptoms are getting severe, please consult the doctor for re-evaluation.
What are the instructions for the storage and disposal of Kast L 5mg/10mg Tablet?
Keep this medicine in the container or the pack it came in, tightly closed. Store it according to the instructions mentioned on the pack or label. Dispose of the unused medicine. Make sure it is not consumed by pets, children, or other people.
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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.References
- CiplaMed: Montelukast sodium + Levocetirizine dihydrochloride [Prescribing Information]. 2023. [Accessed 24 Oct. 2025]. (online) Available from:
- Adsule SM, Misra D. Long term treatment with montelukast and levocetirizine combination in persistent allergic rhinitis: review of recent evidence. J Indian Med Assoc. 2010;108(6):381-382. [Accessed 16 Apr. 2020]. (online) Available from:
Marketer details
Name: Zencure Sciences Pvt Ltd
Address: A.0. 118, Ward No. 3, Ballabgarh, Faridabad (H.R.)
Country of origin: India
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₹103
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MRP₹114.38 10% OFF
10.0 tablets in 1 strip
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Available alternative with same salt composition
Montecip LC Tablet
strip of 10 tablets
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₹145
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Levocetirizine (5mg) + Montelukast (10mg)