"i&#039;m a 24 year old single mother, and diet and exercise was never in my vocabulary. however, i am the heaviest i have ever been. (weighed less when i was 9 months pregnant). i have taken phentermine 37.5mg once before and i had no idea what to expect. i know that this is not a magic pill, but more of a booster. i&#039;ve lost 25 pounds within a month, worked out, ate less and consumed more water and cut out sodas and fast food. was able to wear smaller clothes and the confidence came back. i&#039;m back on it again starting yesterday 7/17/14, and hope i get the same results as last time. my side effects were dry mouth, feeling a little more irritated, heart was going fast, the feeling to constantly move. smoked constantly. good luck everyone"