Theo-Dur

Pronounced: THEE-a-door
Generic name: Theophylline
Other brand names: Quibron-T/SR, Slo-bid, T-Phyl, Theo-24, Theochron, Uni-Dur, Uniphyl

Why is Theo-Dur prescribed?

Theo-Dur, an oral bronchodilator medication, is given to treat symptoms of asthma, chronic bronchitis, and emphysema. The active ingredient of Theo-Dur, theophylline, is a chemical cousin of caffeine. It opens the airways by relaxing the smooth muscle that circles the tubes and blood vessels in the lungs.

Most important fact about Theo-Dur

Theo-Dur is a controlled-release medication. For an acute attack you should take an immediate-release medication instead of more Theo-Dur. If you develop status asthmaticus (a severe breathing difficulty that does not clear up with your usual medications), do not take extra Theo-Dur; instead, seek medical treatment immediately. Since even a little extra Theo-Dur may constitute an overdose, you should be treated in a place where close monitoring is possible.

Individual doses are determined by a person's response (a decrease in symptoms of asthma). In order to avoid overdosing or underdosing, your doctor will perform regular tests to determine the amount of Theo-Dur in your bloodstream.

You should not change from Theo-Dur to another brand without first consulting your doctor or pharmacist. Products manufactured by different companies may not be equally effective.

How should you take Theo-Dur?

Take Theo-Dur exactly as prescribed. Do not change the dose, the time you take it, or how often you take it without consulting your doctor.

This drug is available in two forms. The extended-release tablets should be swallowed whole, not crushed or chewed. The tablets of some brands, including Theo-Dur, are scored; if the doctor prescribes a partial dosage, these tablets should be broken only at the score. You may take the tablets with or without food. If you are taking them on a once-a-day basis, do not take the dose at night.

The other form, Theo-Dur Sprinkle sustained-action capsules, must be taken either 1 hour before or 2 hours after a meal. You may take the capsule whole or open it and empty the contents onto a spoonful of food that is soft but not hot. Without chewing, immediately swallow the spoonful of food and follow it with a glass of cool water or juice. Always take the complete contents of the capsule.