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Ketasma Tablet

Ketotifen (1mg)
Genuine
Authenticity Assured
Prescription
required
Ketasma Tablet is a prescription medicine used to prevent asthma symptoms and allergic eye conditions. It helps reduce asthma attacks by lowering lung inflammation and relieves eye allergies by reducing itching, redness, and irritation.

Written By Dr. Swati Mishra, BDS,
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS,
Last updated on 23 Jan 2026 | 10:15 AM (IST)
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Ketasma Tablet
Ketasma Tablet
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₹77.3

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₹1200
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by Sun Pharmaceutical Industries Ltd
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Asthafen Tablet
Asthafen Tablet
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General Information

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Product introduction

Ketasma Tablet can be taken with or without food. Take it in the exact dose and duration as advised by your doctor. The dose and how often you take it depend on what you are taking it for. Your doctor will decide how much you need to improve your symptoms. Take it for as long as it is prescribed to you.


The most common side effects of this medicine include weight gain, respiratory infections, and rash. Let your doctor know if you experience these symptoms; however, they are usually temporary. Do not drive, use machinery, or do any activity that requires attention, as medicine may cause dizziness. Consult your doctor if your condition does not improve or if the side effects bother you.


Before taking this medicine, tell your doctor if you have epilepsy or diabetes. Your doctor should also know about all other medicines you are taking, as many of these may make this medicine less effective or change the way it works. This medicine is usually not safe to take during pregnancy and breastfeeding; ask the doctor if required.

Uses of Ketasma Tablet

Benefits of Ketasma Tablet

Asthma
Ketasma Tablet helps manage asthma symptoms by supporting long-term control. It reduces the sensitivity to allergens and minimizes asthma flare-ups. This helps the individual breathe more easily and experience fewer asthma attacks. When used as instructed by the doctor, it improves physical activity and reduces the need for emergency medications, making daily life more comfortable and less restricted.
Allergic eye disease
Ketasma Tablet helps relieve itchy, red, and irritated eyes caused by allergies. It also supports overall eye comfort when exposed to allergens like dust or pollen. When used correctly, it helps the individual to go about daily activities without constant discomfort, improving overall quality of life.

Side effects of Ketasma Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Ketasma
  • Respiratory tract infection
  • Rash
  • Weight gain

How to use Ketasma Tablet

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. Ketasma Tablet may be taken with or without food.

How Ketasma Tablet works

Ketasma Tablet works by blocking the release of certain chemical messengers (histamine, leukotrienes) that may cause inflammation, spasms of muscles of the airways, and other symptoms of asthma and eye allergies.

All substitutes for Ketasma Tablet

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

  • Ketasma Tablet can cause drowsiness or dizziness in some individuals. Avoid driving or operating heavy machinery until you know how it affects you.
  • Long-term use of Ketasma Tablet may lead to increased appetite and weight gain, so maintain a balanced diet and active lifestyle.
  • Ketasma Tablet stabilizes mast cells, reducing eye itching, redness, and irritation caused by allergies. However, it does not treat infections, so avoid using it for bacterial or viral eye issues.

Safety advice

Alcohol

Alcohol

UNSAFE
Do not drink alcohol while you are taking this medicine. Ketasma Tablet may cause excessive drowsiness when taken with alcohol.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
The safety of Ketasma Tablet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Ketasma Tablet may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.
Driving

Driving

UNSAFE
Ketasma Tablet may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Kidney

Kidney

CONSULT YOUR DOCTOR
There is limited data available on the use of Ketasma Tablet in patients with kidney disease. Please consult your doctor.
Liver

Liver

CONSULT YOUR DOCTOR
There is limited data available on the use of Ketasma Tablet in patients with liver disease.

Interaction with drugs

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

Tramadol (Injection Route)

Do not drive or do anything requiring concentration or alertness until you know how the medicines affect you.
Moderate

Tramadol (Oral Route)

Do not drive or do anything requiring concentration or alertness until you know how the medicines affect you.
Moderate

Morphine (Oral Route)

Do not drive or do anything requiring concentration or alertness until you know how the medicines affect you.
Moderate

Codeine (Oral Route)

Do not drive or do anything requiring concentration or alertness until you know how the medicines affect you.
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.

Frequently asked questions

Ketasma Tablet is used alongside other medications to help prevent mild asthma symptoms in children aged above 5 years caused by allergies. It is not for emergency asthma attacks and won't work during sudden shortness of breath. It may also be used to manage symptoms of allergic conjunctivitis.
The serious but rare side effects of Ketasma Tablet include seizures (fits), liver problems (yellowing of skin or eyes, dark urine), bladder issues (painful urination, frequent night urination), and severe skin reactions like rashes or blistering. You should seek medical help immediately if these occur.
The exact time Ketasma Tablet takes to show results is not known and is also based on the condition you are being treated for. For short-term relief such as itching, sneezing, etc., Ketasma Tablet may start working within hours. However, for full preventive effects, such as for asthma or chronic allergies, it can take a few weeks to months of consistent use.
Yes, sedation or drowsiness is common, especially when first starting treatment that may cause sleepiness. Avoid driving or operating heavy machinery until you know how it affects you.
Ketasma Tablet is safe for long-term use under medical supervision, especially for chronic allergies or asthma prevention.
You can stop using Ketasma Tablet if prescribed for short-term allergies associated with nasal cavity or eyes. But if Ketasma Tablet is used for asthma or chronic allergies, symptoms may return on stopping abruptly. Consult your doctor before stopping.

Fact Box

Chemical Class

Cycloheptathiophenes

Habit Forming

No

Therapeutic Class

RESPIRATORY

Action Class

Mast Cell Stabilizers
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User feedback

Once A Day
63%
Twice A Day
33%
Thrice A Day
3%
Others
51%
Asthma
47%
Conjunctivitis
2%
Average
48%
Excellent
41%
Poor
11%
No Side Effect
60%
Sleep disturbance
15%
Hyperactivity
10%
Allergic reaction
5%
Weight gain
5%
With food
75%
With or without food
19%
Empty stomach
6%
Average
51%
Expensive
38%
Not Expensive
11%
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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: Sun Pharmaceutical Industries Ltd
Address: Plot no 107/108,Namli block , Ranipool, East Sikkim 737135 || Khasra No. 1335-1340,Near EPIP- I, Vill - Bhatoli Kalan ,Baddi, Solan, Himachal Pradesh, 173205

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Ketasma Tablet. 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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