My Endo Dr put me on Phentermine for wt loss. I have lost 10 lbs so far but the best thing is it helping my IBS-D. I have more normal dtools, my tummy is not constantly spastic ormaking constant hunger sounds. I have low blood pressures so it gets me moving more. I feel NORMAL. Im 63 yrs old. I hope he keeps me on it for a long time. Anyone else use it? I heard Gastros sometimes perscribe it also.