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🏠›Warfarin›Interaction with Allopurinol

Warfarin + Allopurinol

Drug interaction

Moderate interaction

A moderate drug-drug interaction between Warfarin and Allopurinol is recorded in public interaction data. Severity reflects the source classification; it does not describe your individual risk. Do not start, stop, or change either medicine based on this page.

What “moderate” means

A moderate interaction can matter in some people. The combination is sometimes used, but usually with caution - monitoring, timing changes, or dose adjustments.

What to do

Mention this combination to your pharmacist or prescriber. Do not stop either medicine without advice.

Side effects reported for both

Warfarin and Allopurinol are each reported to cause the effects below. Taking them together can make these more likely or more pronounced - one of the ways a drug interaction matters.

FatigueDyspnoeaDiarrhoeaHeadacheNauseaAnaemiaDizzinessAsthenia

Compiled from public adverse-event reports; an overlap, not a confirmed causal mechanism.

The two medicines

Active ingredient

Warfarin

Vitamin K Antagonists

Uses, side effects, dosage →· 796 recorded interactions

Active ingredient

Allopurinol

Preparations Inhibiting Uric Acid Production

Uses, side effects, dosage →· 478 recorded interactions

Source

DDInter 2.0 (CC-BY 4.0, https://ddinter.scbdd.com)

This is not medical advice. Drugvu is an independent aggregator of public records.

Warfarin and Allopurinol: Moderate Interaction - Drugvu