Information about Theophylline

Theophylline Uses

Theophylline is used in the treatment and prevention of chronic obstructive pulmonary disease.

How Theophylline works

Theophylline is a bronchodilator. It works by relaxing the muscles of the airways and widens airways. This makes breathing easier.

Common side effects of Theophylline

Nausea, Vomiting, Headache, Insomnia (difficulty in sleeping)
Written By
PhD (Pharmacology), PGDPRA
Reviewed By
MD (Pharmacology), MBBS
Last updated
13 Jun 2023 | 11:29 AM (UTC)

We provide you with authentic, trustworthy and revelant information

Want to know more

Available Medicine for Theophylline

Unicontin-EModi Mundi Pharma Pvt Ltd
260 to ₹3402 variant(s)
UnirespAlgen Healthcare Limited
37 to ₹582 variant(s)
Theoresp PlusLife Medicare & Biotech Pvt Ltd
55 to ₹632 variant(s)
TheobidCipla Ltd
10 to ₹162 variant(s)
OD PhyllinSun Pharmaceutical Industries Ltd
7 to ₹102 variant(s)
FlythamaRyon Pharma
151 variant(s)
TheofilIntra Labs India Pvt Ltd
491 variant(s)
TheostanSun Pharmaceutical Industries Ltd
131 variant(s)
TheodayCipla Ltd
27 to ₹402 variant(s)
TheopedCipla Ltd
151 variant(s)

Expert advice for Theophylline

  • You have been prescribed Theophylline 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.

Frequently asked questions for Theophylline


Q. How quickly does Theophylline work?

Theophylline 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.

Q. What foods to avoid while taking Theophylline?

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

Q. How should Theophylline be taken?

Take the medicine exactly as prescribed by your doctor. Usually, it is prescribed to be taken twice a day. Take the tablets with a full glass of water at least 1 hour before or 2 hours after a meal. 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.

Q. Is Theophylline a steroid?

No, Theophylline is not a steroid. It is a methylxanthine drug which relaxes smooth muscles around the airways of the lungs. It belongs to bronchodilator group of medicines. It relaxes the air passages in the lungs making it easier to breathe.

Q. Does Theophylline cause tachycardia?

Yes, Theophylline may cause increased or rapid heart rate (tachycardia). It may also cause irregular heart beat, palpitations, and low blood pressure. Immediately contact the doctor if you experience any of these symptoms. It is important to inform your doctor if you are a heart patient, as regular check on heart rate and blood pressure may be advised.

Q. Is Theophylline a stimulant?

Yes, Theophylline is a central nervous system stimulant. During treatment with Theophylline, the patient may experience headache, irritability, and sleeplessness, or inability to fall asleep (insomnia), lightheadedness, and dizziness. Discuss with your doctor if you notice any of these symptoms.


Orders Delivered
Get the link to download App

All products displayed on Tata 1mg are procured from verified and licensed pharmacies. All labs listed on the platform are accredited


Tata 1mg uses Secure Sockets Layer (SSL) 128-bit encryption and is Payment Card Industry Data Security Standard (PCI DSS) compliant


Find affordable medicine substitutes, save up to 50% on health products, up to 80% off on lab tests and free doctor consultations.

LegitScript approved
India's only LegitScript and ISO/ IEC 27001:2022 certified online healthcare platform

Know more about Tata 1mgdownArrow

Access medical and health information

Tata 1mg provides you with medical information which is curated, written and verified by experts, accurate and trustworthy. Our experts create high-quality content about medicines, diseases, lab investigations, Over-The-Counter (OTC) health products, Ayurvedic herbs/ingredients, and alternative remedies.

Order medicines online

Get free medicine home delivery in over 1800 cities across India. You can also order Ayurvedic, Homeopathic and other Over-The-Counter (OTC) health products. Your safety is our top priority. All products displayed on Tata 1mg are procured from verified and licensed pharmacies.

Book lab tests

Book any lab tests and preventive health packages from certified labs and get tested from the comfort of your home. Enjoy free home sample collection, view reports online and consult a doctor online for free.

Consult a doctor online

Got a health query? Consult doctors online from the comfort of your home for free. Chat privately with our registered medical specialists to connect directly with verified doctors. Your privacy is guaranteed.