potential interaction between warfarin and glucosamine-chondroitin supplements (Cosamin DS, etc)

There's some concern about a potential interaction between warfarin and glucosamine-chondroitin supplements (Cosamin DS, etc).

Lots of people take glucosamine and chondroitin for osteoarthritis.

Chondroitin is a small component of a heparinoid...and MIGHT have weak anticoagulant activity.

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