Dona Glucosamine

Has anyone ever used Dona Glucosamine Sulfate? I was wondering if anyone had any first-hand experience and if it helped their knees. Dona is apparently THE brand used in medical studies.

(Of course, I weigh anecdotal first-hand experience more than controlled scientific research mmm hmm)

TIA

I haven't heard any contraidications regarding methotrexate and glucosamine.

I have heard that you should take folic acid with methotrexate.

Found Dona Glucosamine at CreakyJoints.org. And, cheaper than everywhere else, too. Always a plus.