Where does aspirin come from?

[Tumbleweed]

Originally it came from the bark of the white willow, Salix alba. But now aspirin is prepared by chemical synthesis from salicylic acid, by acetylation with acetic anhydride.


www.aspirin-foundation.com/what/chemistry.html
www.treedictionary.com/DICT2003/shigo/TREECHEM.html

[barb]

I always knew it originated from the willow tree but I didn't know they made it synthetically now. I assumed that was one natural med that was still made using the original ingredients. You learn something new every day!