Specific Drugs That Interfere With Theophylline

Theophylline Interactions Explained

The following sections explain in detail the potentially negative interactions that can occur when theophylline is combined with any of the drugs listed above.
 
Alcohol
Drinking alcohol can increase the level of theophylline in your blood, which can cause dangerous side effects. It is best to avoid alcohol while taking theophylline.
 
Allopurinol (Aloprim, Zyloprim)
Taking theophylline with allopurinol can increase the level of theophylline in your blood, which can cause dangerous side effects. If you are taking these drugs together, your healthcare provider should monitor the level of theophylline in your blood and adjust your theophylline dosage as necessary.
 
Certain Antibiotics
Taking theophylline with certain antibiotics can increase the level of theophylline in your blood, which can cause dangerous side effects. If you are taking these drugs together, your healthcare provider should monitor the level of theophylline in your blood and adjust your theophylline dosage as necessary.
 
Certain Benzodiazepines
You may require higher doses of certain benzodiazepines while taking theophylline. If you stop taking theophylline, your previous dose of a benzodiazepine may be too high, causing excessive drowsiness or breathing problems.
 
Certain Seizure Medications
Taking theophylline with certain seizure medications can decrease the level of theophylline in your blood, perhaps making it less effective. In some cases, theophylline can affect the level of seizure medication in your blood. If you are taking these drugs together, your healthcare provider may need to adjust your dosages of theophylline or seizure medication.
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Theophylline Drug Information

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