text: what is sludd? what does sludd mean? i tried looking for it in my physiology text book, but can't find it anywhere. i think it has something to do with side effects of too much of a certain neurotransmitter.  i've heard the term used to reference side effects of a drug (aricept?).  this drug inhibits the activity of acetylcholinesterase.  this leads to a build-up of the neurotransmitter acetylcholine. side effects of this effect are as follows:  s- excess salivation.  l- something involving tear production (can't remember the word) u- excess urination, d- diarrhea.  the other d i'm not sure about.  check on that definition for the word.  good luck!