Phentermine FAQs

Return to all FAQs

General Phentermine Questions

What are the active ingredients in phentermine diet pills?

Views: 9842 | 1274 out of 2924 people thought this was a useful answer


The active ingredient in phentermine diet pills is phentermine hydrochloride, or phentermine HCl.

Phentermine HCl is a central nervous system stimulant that tricks your brain into thinking it’s in “fight or flight”. Through this mechanism, phentermine suppresses appetite and boosts energy.

To learn more about phentermine, click here.