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Content Phentermine.. How does it work? Ellen1991 posted: I've
been wondering how specifically phentermine effects weight loss?
Does it only decrease the appetite or does it increase
metabolism as well? Would a person on phentermine eating 1000
calories a day lose more than a person not taking phentermine
eating 1000 calories a day with the same levels or exercise?
Just curious!  Take the Poll  Have you personally taken
phentermine? If so did it work well for you?   • Yes!   • Not so
much...   • Not at all! View Poll Results Pamela Peeke, MD, MPH,
FACP responded: Hi and thanks for your posting Ellen.
Phentermine is a derivative of amphetamine. It acts very much
like all amphetamines including appetite suppression. However,
this is short lived. As with all members of the amphetamine
family, resistance develops fairly quickly. Then you find
yourself needing more and more...and you get the point. The side
effects seriously impact upon many people's daily