Phentermine FAQs

"Phen-Pro" is the combination (cocktail) of Phentermine (the "Phen") and a low dosage of Prozac (the "Pro"). Any one of the following antidepressants: Zoloft, Celexa, Luvox, Trazadone or Effexor may be used in lieu of Prozac.

The use of the antidepressant in the Phen-Pro cocktail is unrelated to depression. The cocktail is necessary because the effects of Phentermine, when used alone, lessen over time. The Phen-Pro cocktail enables Phentermine to work better and for a longer period of time.

Phen-Pro is considered an "off-label" use, meaning that the FDA, who often voice concerns regarding the mixing/combining of medications, does not approve it. However, once the agency has approved a drug, doctors may prescribe it at will.

The combination of Phentermine and Prozac does not appear to cause the problems that resulted from the usage of Fen-Phen.