Compare your weight-loss options
Prescription appetite suppressants like phentermine are one effective path. Many ThinFast MD patients also explore GLP-1 medications. Compare your options with our physician team:
- Semaglutide vs. phentermine
- GLP-1 semaglutide and tirzepatide (Zepbound/Mounjaro)
- Do I qualify for weight-loss medication?
- How much weight can you lose?
- Men’s weight loss and the weight-loss maintenance program
Frequently asked questions
Which appetite suppressants does ThinFast MD offer?
We offer prescription options including phentermine, phendimetrazine, diethylpropion, and metformin, selected by our physician based on your health profile.
Who should not take phentermine?
Phentermine is generally not appropriate for people with uncontrolled high blood pressure, heart disease, hyperthyroidism, or certain other conditions. A medical evaluation determines if it is safe for you.
How long can I take an appetite suppressant?
Phentermine is typically used short-term under physician direction. Your provider will recommend a duration and monitor your progress.
Are appetite suppressants used with other treatments?
Yes — they are used together with diet, exercise, and ongoing medical supervision, and may be part of a broader plan. Individual results vary.


