"i went to a weight loss clinic on 5/15/2015 and received a &quot;super slim shot&quot; and a prescription for 37.5 mg phentermine. i filled the prescription on saturday and started taking the pill on sunday, so this is day 3 on the pill. so far i have not been hungry at all, i still force myself to eat a greek yogurt in the morning, and snack on mixed nuts throughout the day, and eat protein for dinner, which i have to force because i am still not hungry by dinner, i may eat a chicken breast. i am 5&#039;3 and my starting weight on friday was 187, and i weighed myself last night just to see, and i was down to 183.8 so in just a few days i was down 3.2 lbs,, but i know weight will fluctuate so i am giving it time before i really consider anything lost."