"i&#039;m a 40 yr old male and started taking phentermine 4 days ago. i weighed 234 day before i started taking pill and exercising.  now, i weigh 226. i take one pill at 6am and 4pm. i&#039;ve exercised three times by walking on a treadmill for 30 minutes. i have been restless at night, super dry mouth but more motivated than ever before. i love food and beer... hate exercise.  now, food doesn&#039;t even look good, i only have desire for water and i can&#039;t wait to get up early and get on the treadmill. this sounds crazy but it&#039;s absolutely true!  41 to go."