How long can I take phentermine for?

Phentermine is a potentially habit-forming prescription medication and should only be taken for three months at a time. This recommendation is based on original drug trials in which participants were monitored over a three-month period. However, in some US states, doctors are able to prescribe phentermine for longer periods, or to prescribe it several times within a certain period with month-long breaks between each period.

To learn more about how to take phentermine, visit the phentermine ultimate guide.