Tag: allopurinol theophylline

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Medication Guides
Theophylline Clearance: How Common Medications Can Cause Dangerous Buildup

Theophylline has a narrow therapeutic range, and common medications like cimetidine, fluvoxamine, and allopurinol can drastically reduce its clearance, leading to dangerous toxicity. Learn which drugs to avoid and how to stay safe.

Gideon Seamark Dec, 9 2025 13
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