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Bb Kast 4mg Tablet

Written By Dr. Syeda Aafia, MBA, BDS
Reviewed By Dr. Rajeev Sharma, MBA, MBBS
Last updated on 31 Mar 2026 | 02:31 PM (IST)
Bb Kast 4mg Tablet is used to prevent asthma attacks in children. It may also be used to ease breathing difficulties caused by strenuous physical activities. This medicine also helps treat symptoms of skin and seasonal allergies, such as a runny nose, sneezing, itching, swelling, congestion, and watery eyes.
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General Information

The content is shown in English
Bb Kast 4mg Tablet image
Bb Kast 4mg Tablet image

Your child’s medicine at a glance

Give Bb Kast 4mg Tablet to your child at a fixed time before or after food in the prescribed dose, time, and way. Your child may start to feel better after a few regular doses. However, you must still complete the treatment to ensure maximum benefit. Moreover, stopping the medicine abruptly may worsen your child’s condition.


Bb Kast 4mg Tablet may cause some minor and temporary side effects like fever, headache, abdominal pain, and diarrhea. Usually, these side effects subside once your child’s body adapts to the medicine. However, in case these effects persist or start bothering your child, consult your child’s doctor without any delay.


Let your child’s doctor know if your child is already taking any medicines. Also, narrate your child’s complete medical history, including any prior episodes of allergy, heart problems, blood disorders, vascular disorders, birth defects, airway obstruction, lung anomaly, skin disorder, liver impairment, and kidney malfunction. This information is critical for adjusting doses and planning your child's treatment.

Uses of Bb Kast 4mg Tablet in children

  • Asthma prevention
  • Exercise-induced asthma
  • Treatment of Sneezing and runny nose due to allergies
  • Nasal allergy symptoms

Benefits of Bb Kast 4mg Tablet for your child

Treatment of Sneezing and runny nose due to allergies
Bb Kast 4mg Tablet provides relief from symptoms such as 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.

Side effects of Bb Kast 4mg Tablet in children

Bb Kast 4mg 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 Bb Kast
  • Headache
  • Fever
  • Sore throat
  • Cough
  • Otitis media (infection of ear)
  • Sinus inflammation
  • Flu
  • Upper respiratory tract infection
  • Diarrhea
  • Abdominal pain

How can I give Bb Kast 4mg 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. Bb Kast 4mg Tablet may be taken with or without food.

How Bb Kast Tablet works

Bb Kast 4mg Tablet is a leukotriene antagonist that works by blocking a chemical messenger (leukotriene). This reduces inflammation (swelling) in the airways and nose and improves symptoms.

Quick tips

  • Make sure to keep all other rescue medicines handy for your child in case of any respiratory distress.
  • Never increase or decrease the dose of Bb Kast 4mg Tablet on your own, as it can harm your child.
  • Never combine Bb Kast 4mg Tablet with other cold and flu medicines, as that may cause some side effects.
  • If you are giving Bb Kast 4mg Tablet to your child for asthma or allergy, you need not give another dose to prevent exercise-induced breathing problems. In case of any confusion, consult your child’s doctor as soon as possible.
  • Practice self-care tips like abstaining your child from coming in contact with allergens. Encourage your child to wear a face mask and avoid dusty places. Give plenty of fluids to your child, as that helps in thinning and loosening the mucus in the lungs.

Safety advice

Kidney

Kidney

SAFE IF PRESCRIBED
Bb Kast 4mg Tablet is probably safe to use in patients with kidney disease. Limited data suggest dose adjustment may not be needed.
However, consult your child’s doctor in case of severe kidney disease.
Liver

Liver

SAFE IF PRESCRIBED
Bb Kast 4mg Tablet is safe to use in patients with liver disease. No dose adjustment is recommended.
However, consult your child’s doctor in case of severe liver disease.

Interaction with drugs

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

Mifepristone (Oral Route)

Watch out for symptoms of Montelukast side effects such as headache, diarrhea, abdominal pain or fever and consult your doctor if you experience them. Mifepristone may raise blood levels of Montelukast.
Moderate

Leflunomide (Oral Route)

Watch out for symptoms of Montelukast side effects such as headache, diarrhea, abdominal pain or fever and consult your doctor if you experience them. Leflunomide may raise blood levels of Montelukast.
Moderate

Repaglinide (Oral Route)

If concurrent use is essential, your doctor may monitor the blood sugar levels and may modify the dose as per the observation.
Moderate

Teriflunomide (Oral Route)

Watch out for symptoms of Montelukast side effects such as headache, diarrhea, abdominal pain or fever and consult your doctor if you experience them. Teriflunomide may raise blood levels of Montelukast.
Moderate

Clopidogrel (Oral Route)

watch out for symptoms such as abdominal pain, headaches or excessive involuntary movements and consult your doctor if you experience them. They may adjust the dose of Montelukast accordingly. Clopidogrel may raise blood levels of Montelukast.

Frequently asked questions

Do not give high-fat meals and fruit juices to your child along with Bb Kast 4mg Tablet as they may interfere with the absorption of this medicine.
Bb Kast 4mg Tablet can sometimes interact with other medicines or substances. Tell your doctor about any other medicines your child is taking before starting Bb Kast 4mg Tablet. Also, check with your child’s doctor before giving any medicine to your child.
No, adhere to the dose as prescribed by your child’s doctor. Do not increase or decrease the dose by yourself, as it can impact your child’s health. While increasing the dose may cause unwanted effects like sedation and depression, decreasing the dose or stopping it suddenly can result in a rebound reversal of all symptoms.
No, all symptoms may reappear on sudden withdrawal of Bb Kast 4mg Tablet, usually if taken for a long time. It is advised to stop this medicine gradually under the guidance of your child’s doctor.
Bb Kast 4mg Tablet should be stored at room temperature in a dry place, away from direct heat and light. Also, keep all medicines out of the reach and sight of children to avoid any accidental intake.

Fact Box

Chemical Class

1,3- diarylpropanoid derivative

Habit Forming

No

Therapeutic Class

RESPIRATORY

Action Class

Leukotriene Antagonists
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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: Beulah Biomedics Ltd
Address: Beulah Biomedics Limited, No. 1-8-813/80 SRT, Prakash Nagar Begumpet, Begumpet Prakash Nagar, Hyderabad-500016, Telangana, India

Vendor Details

Country of origin: India
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