"update started 5-18-2015 @274lb ten days later i was at 261 lb. this was by exercising eating a lil better also taking water pills and a b12 shot. on 6-15 i was @ 257lb exercising slowed down my eating habits keep improving but i am trying to work out more.yes i do the b12 also i don&#039;t get too much of a rush of phentermine really (37.5 btw) i work at 4am so the b12 really helps. i have noticed though if i take the pill and forget to eat or don&#039;t wait 30mins i don&#039;t feel it as much. i do half pill first thing in the am and the other half around 1. so far i love this pill my weight is a constant struggle and this gives me hope . i am 25 f 5&#039;7 would love to read more ppls reviews coming to this blog is a big motivator for me.i pay $85 for this and $20 for the b-12"