As far as I know aspartame isn't banned anywhere, but stevia is banned by the EU and a few Asian countries. This article is old, but gives the gist of the CDC opinion on apartame...that the public may be worried about something researchers aren't http://www.cdc.gov/mmwr/preview/mmwrhtml/00000426.htm My concern with stevia is that as far as I am aware it hasn't been tested as rigorously, as the supplemental loophole excludes items from full FDA testing (like vitamin A tablets at a pharmacy). In any event, plants aren't automatically safer than synthetics. Plant based materials are concentrated. Nicotine, heroin (opiates), and cocaine are all plant based too.
cocaine is safe ;) it keeps the bloodsugar levels perfect with no insulin in the system. haha.
now to why i was replying..
aspartame isn't banned..but isn't it suppose to fuse your spine or cause cancer or something? either way..i prefer natural indgrediants over chemicals even when it comes down to cold medicine.