Slim with Phentermine
Phentermine is an appetite-suppressant which, like many others, is a constitutional isomer of methamphetamine. The drug acts with the neural system and central nervous system to block the hunger signals to the brain and decrease the appetite.
Phentermine works primarily by encouraging the release of neurotransmitters like dopamine and adrenalin, which take precendence over other brain signals. Adrenalin, in particular, triggers the 'fight or flight' response which blocks the hunger message before it reaches the brain and alerts the individual to their desire for food.
As it close relation to methamphetamine indicates, phentermine does carry a risk of chemical dependency and, as such, is not recommended for long-term use.
Phentermine was approved by the FDA for public use in 1959, and has not been clinically tested since. It is now for sale under a variety of brand names and sold by a number of different pharmaceutical companies, including Adipex-P and Phentermine.
In 1990, chemists created a compound of phentermine and fenfluramine (or dexfenfluramine) and released the drug under the name of Fen-Phen. A report released two years later listed the findings that the drug appeared to be more effective for weight loss than dieting, exercise and any other weight loss drug. It later transpired that 24 users of the drug had contracted heart valve disease, and further research put this figure at 30% of users. The drug was withdrawn from the market.
Phentermine in its pure form has retained the approval of the FDA and is considered completely safe.