How much weight can you lose taking phentermine?
Effective for weight loss
The average weight loss when taking phentermine is 3% of your initial body weight after 3 months and 5–7% after 6 months. Some people report even more weight loss than this ( 5 , 6 , 9 , 10 ).
How quickly does phentermine work?
Phentermine starts to work very quickly after taking an initial dose. Phentermine medication gets absorbed through your gastrointestinal tract. It will reach its peak concentrations in your blood after three to 4.4 hours. You should start feeling the effects in around four hours.
How much weight should you lose in a week on phentermine?
Depending on your lifestyle and the changes you make once you start, it’s possible to lose several pounds the first week as your body sheds water weight. That being said, the recommended weekly rate of weight loss is one to two pounds.