That is good to hear Al that glucosamine shouldn't be a problem. I have a bad knee and was taking glucosamine and chondroitin before valve replacement. I have been afraid to start taking it again - when I look for interactions this is about all I could find:
http://www.drtheo.com/interactions.html
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To date, no person allergic to sulfur drugs has had a serious reaction with the elemental sulfur in the supplements. Elemental sulfur is a required nutrient in the body and is found in every cell. Furthermore, virtually all foods we eat contain sulfur.
Coumadin (warfarin sodium) - Glucosamine and chondroitin do not appear to effect blood clotting. Many people use these supplements despite taking the "blood thinner" Coumadin.
There is a concern about unpure chondroitin products that contain a cousin of chondroitin called dermatan sulfate. Dermatan sulfate (sometimes erroneously called chondroitin B) can prolong bleeding time. For some odd reason, some products ... claim to contain chondroitin B on the label. If this truly is dermatan sulfate, I'd make sure to steer clear of this brand.
I believe the concern with prolonged bleeding is not well justified with the recommended brands.
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. Chondroitin sulfate B (dermatan sulfate) has anticoagulant properties. Chondroitin sulfate is a component of the antithrombotic danaparoid sodium
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I guess I'll try taking it once again - my knee could use it.