Acid by Jeff Lovell

Rick Howell, living in the shadow of two women who have the power to change reality, must risk his life to stop the genocidal exploits of a desperate lunatic who wants to acquire their powers. The discovery of a mind controlling drug opens a pathway to frightening mental abilities for Rachel Farrell, who can move backward and forward in time at will, while Donna Riske, Rachel's best friend, can control the thoughts of others. The battle of Good versus evil spreads from a chemistry lab at the University of Illinois as desperate characters in search of power and wealth travel the globe pursuing the Time Shifting secret drug. Good destroys evil, but not before greed, maniacal mayhem and a perfect crime put to rest the mind controlling drug.