"i took cantrave for five months under a physician monitored program.  after three months there were no noticeable effects of the drug.   i started to regain the weight for two months while on the drug.  i went off the drug and five months later i am back where i started and several hundred dollars out of pocket.  my physician told me it was good for long-term use, but that did not prove the case for me.  it was not effective after ninety days."