Answer
Isolated INR increases have been reported after marketing with concurrent memantine hydrochloride and warfarin use; no causal relationship has been established, but close monitoring of prothrombin time or INR is advisable.
Sources for this answer
- Memantine Hydrochloride 10mg/ml Oral SolutionRosemont Pharmaceuticals Limited · emc · SmPC §4.5 Interaction with other medicinal products · Version 3Document updated
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