[disinfo ed.'s note: this original essay was first published by disinformation on May 14, 2001. Some links and contact information may have changed.]
A worldwide epidemic is raging. The cause is a poisonous chemical sweetener, aspartame (marketed as NutraSweet, Equal, Spoonful), the most controversial food additive ever approved. In reality it is a drug which interacts with other drugs and changes brain chemistry.
H.J. Roberts, M.D., describes interactions with drugs such as Coumadin, Dilantin, Inderal, methyldopa or Aldomet, insulin, and lidocaine in Aspartame (NutraSweet): Is It Safe? 
From the paper Effects of Aspartame on the Brain: Neurologic Effects of Aspartame? by Richard J. Wurtman and Timothy J. Maher: “Compounds that do affect physiological systems are classified as drugs by the Food and Drug Administration (FDA) and are subject to considerably more demanding regulatory procedures than food constituents. However, and perhaps paradoxically because food additives must be shown to be physiologically inert in order to win initial FDA approval, once they have obtained this approval they are thereafter exempted from the requirement (imposed on all drugs) that their safety continue to be monitored.… Read the rest