Hi,
Someone I know...used to (past tense) experiment with a lot of OTC thermogenic products (xenadrine, stacker 2 etc) and even some ephederine products like lipodrene, xlean..in their high school years.
1. Once you stop taking those products does your metabolism slow down or PERMEANTLY (sp?) change...
2. same w/ phentermine. a doctor presreibed it to me when my bmi was 25...will stop taking it make permament changes to my body?
ps I will go try to find some info on how metabolism functions,