Drug interactions
Allopurinol + Theophylline
Severity: Moderate
Allopurinol and Theophylline: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
High-dose allopurinol can reduce theophylline clearance and raise serum levels, risking nausea, tachycardia, arrhythmias and seizures.
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Other interactions of Theophylline
Other interactions of Allopurinol
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