A drug called theophylline is used to treat breathing disorders like asthma. It is a bronchodilator that eases breathing by relaxing the muscles surrounding the airways. There are three different oral dosage forms of theophylline: tablets, liquids, and injectable solutions. Users of Welzo should read this article for informational purposes to better understand theophylline.

Health Benefits

Asthma and other breathing disorders can be effectively treated with theophylline.Theophylline was discovered to enhance lung function and lessen the frequency of asthma attacks in one study.In addition to these conditions, theophylline may be useful in the treatment of emphysema, bronchitis, and COPD.

Side Effects and Precautions

Theophylline's most frequent side effects are headache, nausea, vomiting, diarrhea, and trouble sleeping.More severe side effects of theophylline can include irregular heartbeat and seizures.Call your doctor right away and stop taking the medication if you experience any of these side effects.

Dosage and Administration

Theophylline dosage recommendations are based on your age, weight, and medical history. 100–200 mg per day, divided into two doses, is the typical starting dose. Depending on how well you respond to the medication, the dose might be increased or decreased.

To avoid stomach upset, theophylline should be taken with food or milk. Before each dose, thoroughly shake the bottle if you're taking an oral liquid.


If you take any other medications, herbs, or vitamins, theophylline may interact with them.Tell your doctor about all of your prescription and over-the-counter medications, as well as any vitamins or herbal supplements you may be taking.

Mechanism of Action

To facilitate breathing, theophylline relaxes the muscles surrounding the airways.It works on the smooth muscle in the lungs as a bronchodilator.Additionally, theophylline has anti-inflammatory properties and can aid in lowering mucus production.


Theophylline is quickly absorbed from the digestive system and reaches its peak levels in 1-2 hours.Theophylline has a half-life of 3-6 hours.The kidneys are the main organs through which theophylline is excreted.