Interaction With Quinine

Hello. I am a care worker and one of my clients is a mid 50s gentleman with ms. I recently went through all his medication to look for risks, and noticed he's been taking zinc and magnesium with it. We moved the minerals to an other part of the day, so that should be ok, but now it turns out he's on quinine. The same doctor prescribed both. I know quinine can potentiate warfarin, but he's already on both, his gp knows this and the warfarin clinic is aware as well. What would you do? He wants to stopp taking the quinine, but i'm not so sure. He has his INR tested every second week atm.

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If they are monitoring him, then there is likely no need to make any change, as his Warfarin dosage has already been adjusted accordingly and is adjusted as needed.

That's really the point of checking the INR regularly, so any changes can be made and unless an interaction is very dangerous, most doctors will just prescribe a medication and then make changes as needed.

If he's concerned, there's no harm in his speaking to his doctor about it, to allay his fears.

Are there any other questions I can help with?

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