Phentermine
Phentermine is a type of drug that is used for weight loss purposes and is an appetite suppressant. Looking at Phentermine from a scientific perspective it is both an amphetamine as well as a phenethylamine and it is typically reserved for people who are very overweight and who are at risk of serious health problems because of their weight as opposed to those who simply want to lose five to ten pounds simply to look better. Phentermine most often requires a prescription from a doctor but it is possible to purchase Phentermine without a prescription online and also to find cheap Phentermine through an online drugstore. Whether this is a safe route to take however is debatable in the medical community. Phentermine as a diet pill is sold either as an immediate-release formula (which is called Adipex) or else as a slow-release formula by the name of Ionamin or Duromine. The slow-release formulas are most commonly sold in both Australia and New Zealand.

The FDA first approved Phentermine in the year 1959 to be used as diet pills for suppressing the appetite. A form of Phentermine called Phentermine hydrochloride became readily available in the early 1970s. Phentermine can also be found in its generic form and this is the type that can most easily be purchased cheaply without a prescription over the Internet. Very few clinical studies have been done on Phentermine, with the most recent having been undertaken in 1990.

Phentermine works with the neurotransmitters of the brain to stimulate those known as catecholamines. These neurotransmitters include dopamine, adrenalin (or epinephrine), and noradrenaline (or norepinephrine). The neurotransmitters send out a “fight or flight” type of response to the rest of the body, which immediately puts the desire to eat on hold. To put it another way, Phentermine works because the brain never receives the message of hunger and therefore the body never gets the opportunity to eat or overeat.

Even if Phentermine is available online whether it be the Phentermine 37 5mg or otherwise it is not recommended that you buy it because it is an amphetamine that while well tolerated by most individuals, can still cause its share of side effects. For example Phentermine diet pills can cause an increase in heart rate, high blood pressure, heart palpitations, restlessness and insomnia. For weight loss it is recommended that Phentermine be taken on a short-term basis because if taken long-term this drug can cause a person to develop a psychological addiction to it.