Theophylline is a bronchodilator used to treat symptoms of asthma, chronic bronchitis, and emphysema. It works in the airways by relaxing muscles and opening air passages. Theophylline is available in extended-release forms for long-term management of ongoing lung diseases.

Theophylline FAQ


What is Theophylline used for?

Theophylline is used to treat symptoms of asthma, chronic bronchitis, and emphysema by relaxing muscles in the airways and increasing air flow to the lungs.

How should I take Theophylline?

Follow the dosage and administration instructions provided by your doctor. Do not crush or chew extended-release tablets; swallow them whole.

What are the possible side effects of Theophylline?

Common side effects may include nausea, headache, vomiting, and trouble sleeping. Seek medical attention if you experience serious side effects such as rapid or irregular heartbeats.

Can I take other medications with Theophylline?

Inform your doctor about all other medications you are taking, especially cimetidine, disulfiram, or fluvoxamine, as they may interact with Theophylline.

Is Theophylline safe during pregnancy?

It is important to consult with your doctor if you are pregnant or planning to become pregnant before using Theophylline or any other medications.

What should I do if I miss a dose of Theophylline?

Take the missed dose as soon as you remember. Do not take extra medicine to make up for a missed dose.

Can I drink alcohol while taking Theophylline?

Limit alcoholic beverages while using Theophylline, as alcohol may increase the risk of certain side effects such as nausea and dizziness.

How long does it take for Theophylline to work?

Theophylline may start to improve breathing within 15-30 minutes after taking a dose, with the maximum effect occurring within 1-2 hours.

Is Theophylline a steroid?

No, Theophylline is not a steroid. It belongs to a class of drugs called methylxanthines, which work by relaxing the muscles in the airways and improving breathing.

What should I discuss with my doctor before taking Theophylline?

Inform your doctor about your medical history, especially if you have heart problems, liver disease, or a history of seizures.

Can Theophylline be given to children?

The use of Theophylline in children should be carefully monitored and directed by a healthcare professional.

Is it safe to drive while using Theophylline?

It is important to be cautious when driving or operating machinery until you know how Theophylline affects you, as it may cause dizziness.

How should Theophylline tablets be stored?

Store Theophylline at room temperature, away from light and moisture. Keep it out of reach of children and pets.

What should I do in case of Theophylline overdose?

Seek emergency medical attention or call the Poison Help line if you suspect an overdose or experience severe symptoms such as vomiting, confusion, or seizures.

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Information provided by Maryam Abdullahi-Mahdi. Reviewed by Prof. Vijay Sangar