"hello i started taking this medicine combination phentermine 37.5/ topamax 50mg every morning on 5/13/2017 and i weighed 348lb and now its been one month and i am weighing in at 332lb. i have not had any cravings for sweets or any heavy meals. my appetite has been decreased i eat one or two protein filled snacks and a light meal with some carbs. although i really don&#039;t have the taste for carbs. i feel very thirsty i drink nothing but water all day. for exercise, i walk 30 minutes 3 to 5 days a week. really nothing big on the exercise side. i felt really tired at first and didn&#039;t  do too much. i hope to be able to lose 100 pounds more so that i can be more active and my goal is to run in a marathon race by next year."