define:

dr. jekyl sndrome, type 1
 bad reaction/irritable as a result of dextromethorphan

dr. jekyl syndrome, type 2 (CAYAS)
 impulse (possibly controllable) to call and yell at someone. desire
 to controll or yell at people, frustration with people not doing what
 one is saying/wanting. similar to juvenille temper tantrum. stiffness
 of jaw. irritable. fuming. seeing red.
 possible irritants include having many things one wants to do, but
 having difficulty scheduling them. too much stimuly. temporary in-
 ability to back burner or table items.