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Unicontin-E 600 Tablet CR

Theophylline (600mg)

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Unicontin-E 600 Tablet CR 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 25 Nov 2025 | 03:05 PM (IST)

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General Information

Contains

Theophylline (600mg)

Marketer

Modi Mundi Pharma Pvt Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Unicontin-E 600 Tablet CR can be taken with the food in the evening. 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 Unicontin-E Tablet CR

Benefits of Unicontin-E Tablet CR

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. Unicontin-E 600 Tablet CR 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. Unicontin-E 600 Tablet CR 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 Unicontin-E Tablet CR

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 Unicontin-E

Vomiting
Headache
Nausea
Upset stomach
Insomnia (difficulty in sleeping)

How to use Unicontin-E Tablet CR

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. Unicontin-E 600 Tablet CR may be taken with or without food.

How Unicontin-E Tablet CR works

Unicontin-E 600 Tablet CR is a bronchodilator. It works by relaxing the muscles of the airways and widens airways. This makes breathing easier.

Quick tips

You have been prescribed Unicontin-E 600 Tablet CR 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.
You have been prescribed Unicontin-E 600 Tablet CR 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

UNSAFE

It is unsafe to consume alcohol with Unicontin-E 600 Tablet CR

Pregnancy

CONSULT YOUR DOCTOR

The safety of Unicontin-E 600 Tablet CR 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

SAFE IF PRESCRIBED

Available human data suggest that the drug does not pass into breast milk in clinically significant amounts and is unlikely to harm the infant.
Avoiding breastfeeding for 2-4 hours after Unicontin-E 600 Tablet CR can further decrease the exposure of medicine to the baby.

Driving

SAFE

Unicontin-E 600 Tablet CR does not usually affect your ability to drive.

Kidney

SAFE IF PRESCRIBED

Unicontin-E 600 Tablet CR is safe to use in patients with kidney disease. No dose adjustment is recommended.

Liver

CAUTION

Unicontin-E 600 Tablet CR should be used with caution in patients with liver disease. Dose adjustment may be needed.

Interaction with drugs

Taking Unicontin-E 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

How quickly does Unicontin-E 600 Tablet CR work?

Unicontin-E 600 Tablet CR starts acting quickly and you may notice improvement in symptoms within about half an hour of taking it. However, the medicine may take a little longer about 4-8 hours to show full effect. Consult your doctor if there is no considerable improvement in your symptoms.

What foods to avoid while taking Unicontin-E 600 Tablet CR?

While on Unicontin-E 600 Tablet CR you should avoid foods rich in caffeine like tea, cocoa, coffee, and chocolate. These foods can increase side effects associated with Unicontin-E 600 Tablet CR. In addition to that, you should avoid alcohol and tobacco while on Unicontin-E 600 Tablet CR. Discuss with your doctor if you are not sure or have any concerns regarding food restriction.

How should Unicontin-E 600 Tablet CR be taken?

Take the medicine exactly as prescribed by your doctor. Usually, it is prescribed to be taken twice a day. Do not crush or chew the tablets. The capsules can be taken whole or opened and the contents mixed with soft food and swallowed without chewing.

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; 2023. [Accessed 07 Aug. 2023]. (online) Available from:

User feedback

Patients taking Unicontin-E 600 Tablet CR

Once A Day

80%

Alternate Day

20%

What are you using Unicontin-E Tablet CR for?

Asthma

56%

Chronic obstructive pulmonary disease (COPD)

22%

Others

22%

How much was the improvement?

Excellent

47%

Average

33%

Poor

20%

What were the side-effects while using Unicontin-E 600 Tablet CR?

No Side Effect

60%

Restlessness

20%

Gastric irritation

20%

How do you take Unicontin-E Tablet CR?

With food

75%

With or without food

25%

Please rate Unicontin-E 600 Tablet CR on price

Not Expensive

44%

Average

33%

Expensive

22%

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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: Modi Mundi Pharma Pvt Ltd
Address: 1400, Modi Tower, 98, Nehru Place, New Delhi, India - 110019

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Unicontin-E 600 Tablet CR. 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

Lab tests offered by us

Why we need a prescription?

Unicontin-E 600 Tablet CR

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General Information

Contains

Marketer

Storage

Product introduction

Uses of Unicontin-E Tablet CR

Benefits of Unicontin-E Tablet CR

Side effects of Unicontin-E Tablet CR

How to use Unicontin-E Tablet CR

How Unicontin-E Tablet CR 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

How quickly does Unicontin-E 600 Tablet CR work?

What foods to avoid while taking Unicontin-E 600 Tablet CR?

How should Unicontin-E 600 Tablet CR be taken?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Absolute Eosinophil Count

Complete Blood Count

References

User feedback

Patients taking Unicontin-E 600 Tablet CR

What are you using Unicontin-E Tablet CR for?

How much was the improvement?

What were the side-effects while using Unicontin-E 600 Tablet CR?

How do you take Unicontin-E Tablet CR?

Please rate Unicontin-E 600 Tablet CR on price

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

In case of any issues, contact us

Lab tests offered by us

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