Effects of Theophylline

Available by prescription only, theophylline (brand names include Uniphyl® and Theocron®, among others) is a drug that is effective for asthma, chronic obstructive pulmonary disease, and other conditions. The medication comes in the form of tablets, capsules, an injection, and an elixir.
During an asthma attack, the muscles around the airways tighten. This narrows the airways and makes it harder to breathe. One of the effects of theophylline is that it causes the muscles of the airway to relax, which opens up the airways and allows more air to get into and through the lungs. It also helps prevent allergic reactions and inflammation that can lead to asthma attacks.
Just like any other medication, theophylline can cause side effects. However, most people tolerate it well, and any problems that do occur are typically mild and easy to treat. Common side effects include insomnia, nausea, and headache.
(For more details on the effects of this drug, click Theophylline. Topics discussed in this article include safety precautions, whether theophylline is safe for children, generic availability, and more.)
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