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Asma OD 400mg Tablet

Theophylline (400mg)

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Asma OD 400mg Tablet is used to treat and prevent symptoms of asthma and chronic obstructive pulmonary disorder (a lung disorder in which flow of air to the lung is blocked). It helps in relaxing the muscles of the air passages, thus widening it and making it easier to breathe.

Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Mekhala Chandra, MD, MBBS,
Last updated on 30 Oct 2026 | 12:46 PM (IST)

₹34.7 MRP ₹36.565% off

(Inclusive of applicable taxes)

Gurgaon

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General Information

Contains

Theophylline (400mg)

Marketer

Indosurge Biotech

Storage

Store below 30°C

The content is shown in English

Product introduction

Asma OD 400mg Tablet can usually be taken with or without food. Take it at the same time every day to get the most benefit. The dose and how often you take it depends 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 for you. Do not miss even a single dose, if in any case, you missed a dose, take it as soon as you remember it. It does not work immediately or prevent the already started breathing trouble, hence always carry your medical inhaler with you for an emergency.

The most common side effects of this medicine include vomiting, headache, nausea, stomach upset, and insomnia. If these bother you or appear serious, let your doctor know. There may be ways of reducing or preventing them. Generally, it is advised not to consume alcohol or do not smoke while on treatment. You must avoid high caffeinated products like coffee, tea, and dark chocolates as it enhances drug side effects.

Before taking this medicine, let your doctor if you have kidney or liver disease or if you have heart-related problems. 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. Inform your doctor if you are pregnant or breastfeeding before starting the treatment.

Uses of Asma Tablet

Benefits of Asma Tablet

Asthma
Asthma is a condition in which the airways of the lungs become inflamed and narrowed, leading to symptoms such as wheezing, breathlessness, chest tightness, and coughing. Asma OD 400mg Tablet works by relaxing the muscles around the airways and reducing airway narrowing, which improves airflow to the lungs. This helps in easing breathing, reducing asthma symptoms, and improving the patient’s ability to carry out daily activities with fewer breathing difficulties.

Chronic obstructive pulmonary disease (COPD)
Chronic obstructive pulmonary disease (COPD) is a long-term lung condition that causes persistent breathing problems due to airway obstruction and damage to the lungs. Patients often experience chronic cough, mucus buildup, and shortness of breath, which worsen over time. Asma OD 400mg Tablet helps by widening the airways and reducing inflammation, allowing better movement of air in and out of the lungs. This relieves breathlessness, decreases the frequency of flare-ups, and enhances overall lung function, improving quality of life in people living with COPD.

Side effects of Asma 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 Asma

Headache
Nausea

How to use Asma 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. Asma OD 400mg Tablet may be taken with or without food.

How Asma Tablet works

Asma OD 400mg Tablet helps relax the muscles around the airways, widening them and making it easier for air to flow into and out of the lungs. This helps relieve breathing difficulties.

Quick tips

You have been prescribed Asma OD 400mg Tablet for prevention and treatment of asthma and chronic obstructive pulmonary disease (COPD).
It should be taken at the same time each day, preferably in the evening after food.
It does not work right away and should not be used to relieve sudden breathing problems. Always keep a fast-acting (rescue) inhaler with you.
Your doctor may take regular blood test to monitor potassium level and the level of this medicine in your body.
Notify your doctor if you have ever been diagnosed with kidney, liver or heart disease, or if you have a smoking history. Your dose may need to be adjusted.
Do not discontinue use without consulting your doctor, even if you feel better.

Safety advice

Alcohol

CAUTION

Alcohol should be used with caution while taking Asma OD 400mg Tablet.

Pregnancy

UNSAFE

Asma OD 400mg Tablet is highly unsafe during pregnancy. It can cause serious harm to the unborn baby, including birth defects and pregnancy loss. Do not use this medicine if you are pregnant or planning to become pregnant.

Breast feeding

CAUTION

Asma OD 400mg Tablet should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from the body.
Avoiding breastfeeding for 2-4 hours after Asma OD 400mg Tablet can further decrease the exposure of medicine to the baby.

Driving

SAFE

Asma OD 400mg Tablet does not usually affect your ability to drive.

Kidney

CAUTION

Asma OD 400mg Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.

Liver

CAUTION

Asma OD 400mg Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Interaction with drugs

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

Life-threatening

Carvedilol (Oral Route)

Do not use Carvedilol with Theophylline in any form if you have asthma or breathing issues, as it may result in excessive breathlessness or coughing.

Life-threatening

Labetalol (Injection Route)

Do not use Labetalol with Theophylline in any form if you have asthma or breathing issues, as it may result in excessive breathlessness or coughing.

Life-threatening

Labetalol (Oral Route)

Do not use Labetalol with Theophylline in any form if you have asthma or breathing issues, as it may result in excessive breathlessness or coughing.

Life-threatening

Pindolol (Oral Route)

Do not use Pindolol with Theophylline in any form if you have asthma or breathing issues, as it may result in excessive breathlessness or coughing.

Life-threatening

Propranolol (Oral Route)

Do not use Propranolol with Theophylline in any form if you have asthma or breathing issues, as it may result in excessive breathlessness or coughing.

Frequently asked questions

What is Asma OD 400mg Tablet used for?

Asma OD 400mg Tablet is used to help manage breathing problems associated with asthma and chronic obstructive pulmonary disease (COPD). It relaxes the muscles around the airways, helping air move more easily in and out of the lungs.

Can Asma OD 400mg Tablet be used to treat sudden breathing difficulties?

No. Asma OD 400mg Tablet does not provide quick relief from a sudden asthma attack or severe breathing difficulty. Use your prescribed rescue inhaler or medicine for sudden symptoms and seek urgent medical help if breathing becomes severely difficult.

Can I drink tea or coffee while taking Asma OD 400mg Tablet?

Tea, coffee, chocolate, and other caffeine-containing products may increase side effects such as a fast heartbeat, restlessness, and difficulty sleeping. Avoid consuming large amounts of caffeine and ask your doctor if you need advice about your usual intake.

Does Asma OD 400mg Tablet require regular blood tests?

Yes. Your doctor may recommend blood tests to check the level of Asma OD 400mg Tablet in your blood and ensure that it remains within a safe range. The dose may need adjustment depending on the results and your response to treatment.

Can I smoke while taking Asma OD 400mg Tablet?

Smoking can change how quickly your body removes Asma OD 400mg Tablet, affecting its level in the blood. Inform your doctor if you smoke or plan to stop smoking, as your dose may need adjustment. Do not change the dose yourself.

Can I take other medicines with Asma OD 400mg Tablet?

Some medicines, including certain antibiotics and medicines used to treat seizures, can change the level of Asma OD 400mg Tablet in your blood. Tell your doctor about all medicines, supplements, and herbal products you take before starting a new medicine.

What precautions should I take before using Asma OD 400mg Tablet?

Inform your doctor if you have liver disease, heart problems, an irregular heartbeat, seizures, or a stomach ulcer. Also tell your doctor if you develop a persistent fever or a new illness during treatment, as your medicine levels may change.

Can I stop taking Asma OD 400mg Tablet once my breathing improves?

Do not stop taking Asma OD 400mg Tablet without consulting your doctor, even if you feel better. Your doctor will decide how long you need treatment and whether your dose should be changed.

Can Asma OD 400mg Tablet cause serious side effects if I take too much?

Yes. Taking too much Asma OD 400mg Tablet can cause repeated vomiting, a rapid or irregular heartbeat, severe restlessness, or seizures. Seek immediate medical attention if these symptoms occur or if you suspect an overdose.

Fact Box

Chemical Class

Xanthine derivative

Habit Forming

Therapeutic Class

RESPIRATORY

Action Class

Xanthine Derivatives- Respiratory

Related lab tests

Absolute Eosinophil Count

Complete Blood Count

References

Barnes PJ. Pulmonary Pharmacology. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 1040-44.
Boushey HA. Drugs Used in Asthma. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 345.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 1350-51.
Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-S198. [Accessed 01 Apr. 2019] (online) Available from:
Central Drugs Standard Control Organisation (CDSCO). [Accessed 01 Apr. 2019] (online) Available from:
Theophylline [Prescribing Information]. Wilson, NC: Rhodes Pharmaceuticals; Revised 2026. [Accessed 28 Oct 2026. (online) Available from: '

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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: Indosurge Biotech
Address: S.P.O.9/7, Agbotawala Building, Lamington Road, Mumbai

Vendor Details

Country of origin: India

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Respiratory

Bronchodilators

Asma OD 400mg Tablet

Asma OD 400mg Tablet

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General Information

Contains

Marketer

Storage

Product introduction

Uses of Asma Tablet

Benefits of Asma Tablet

Side effects of Asma Tablet

How to use Asma Tablet

How Asma Tablet works

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Carvedilol (Oral Route)

Labetalol (Injection Route)

Labetalol (Oral Route)

Pindolol (Oral Route)

Propranolol (Oral Route)

Frequently asked questions

What is Asma OD 400mg Tablet used for?

Can Asma OD 400mg Tablet be used to treat sudden breathing difficulties?

Can I drink tea or coffee while taking Asma OD 400mg Tablet?

Does Asma OD 400mg Tablet require regular blood tests?

Can I smoke while taking Asma OD 400mg Tablet?

Can I take other medicines with Asma OD 400mg Tablet?

What precautions should I take before using Asma OD 400mg Tablet?

Can I stop taking Asma OD 400mg Tablet once my breathing improves?

Can Asma OD 400mg Tablet cause serious side effects if I take too much?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Absolute Eosinophil Count

Complete Blood Count

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

Related/Popular tests