Answer
Yes, taking Namuscla (mexiletine hydrochloride) with warfarin is contraindicated because potential interactions with substrates of other common enzymes and transporters have not yet been assessed and warfarin has a narrow therapeutic window.
Sources for this answer
- Namuscla 167 mg hard capsulesLupin Healthcare (UK) Ltd · emc · SmPC §4.5 Interaction with other medicinal products · Version 3Document updated
Sources checked