Longevity is one of the reasons why some say the Phentermine best diet pill title is deserved. This is something that was first used as early as 1959. Though it has had some ups and down and has been pulled from the market in some forms, it was never the Phentermine part of any drug that was found to be dangerous or ineffective. It was once part of the very successful and highly prescribed diet pill Fen-Phen. Once it was found that this drug caused heart valve disease, it was discontinued and deemed that the problems with the drug outweigh any good that may come of taking it. However, the Phentermine part of the drug was not the problem and is still considered safe to this day.

One of the main reasons why some people consider Phentermine the best diet pill of all time is because it works. Phentermine is a powerful appetite suppressant as well as a know metabolism and energy booster. It works by going to the brain to stimulate the hypothalamus part of the brain that is in part responsible for hunger signals. It triggers the hypothalamus to release a neurotransmitter that is called nor-epinephrine. This is something that travels through the body to tell the body that it is not hungry and that no food intake is needed. In a small way, fat burning and metabolism are boosted by Phentermine, however, it is mostly known as a very good appetite suppressant when given to a patient for weight loss.

As with any other drug, there are some side effects that are associated with Phentermine. Some find they have higher blood pressure, racing heart, nervousness, dry mouth, heartburn, confusion, dizziness, headache, nausea, irritability, restlessness, insomnia, fatigue, stomach pain, and hypertension. Phentermine can also have some addictive qualities. However, this drug is usually used in the short term to give an obese person a jump start on weight loss. In smaller doses taken for short periods of time, you can call Phentermine the best diet pill of all time because it works. As long as taken correctly, it does what it claims and is safe.