Important Aspects About Phentermine

What is Phentermine?

Phentermine is a drug which belongs to amphetamine group. Some other drugs which belongs to amphetamine group are methamphetamine, dextroamphetamine etc. The amphetamine group of drugs belongs to CNS (central nervous system) stimulant adrenergic drugs (the drugs which have similar action as that of adrenalin, noradrenalin etc.).

Phentermine and other such type of drugs are commonly used as appetite suppressants and for this appetite suppressant property Phentermine has gained its popularity as weight loss product. In most of the countries of the world Phentermine is approved (including USFDA) as an appetite suppressant to reduce weight in obese individuals. Phentermine and other related drugs can cause short term improvement in stamina and used by some athletes for enhancing performance illegally, that is why Phentermine is tested in dope tests in sports events.

Some trade names of Phentermine preparations:

Phentermine is available in many trade names like Phentremene, Adiphene, Adipex P, Phenterol, Phentrex, Obenix, Supremin, Phentromin etc. The trade name may differ in different countries.

How Phentermine acts?

The appetite suppressant action of Phentermine is exerted by inhibiting the hypothalamic feeing center. The inhibition is mainly as a result of release of noradrenalin which is a neurotransmitter (chemical messenger) in brain and signals to inhibit the hypothalamic feeding center. Phentermine also have action outside central nervous system in the peripheral areas where it releases adrenaline which cause breakdown of fat cells in the adipose tissues. But the main mechanism of weight reduction of Phentermine is appetite suppressant by inhibiting hypothalamic feeding center.

How to use Phentermine for weight loss?

Phentermine, if used for weight loss by obese individuals, should be used for short term up to 3 months maximum. Phentermine should be used along with general non drug measures for weight loss like regular physical exercise, consumption of high fiber diets liberally and restriction of total calorie consumption daily for successful weight loss. Ideally if Phentermine is used for 3 months also it should be interrupted a few times in this 3 months course, e.g. give a break of up to one week after taking Phentermine for about a month. The interruption can help in reducing side effects to a large extent.

What side effects should be kept in mind while taking Phentermine?

Phentermine like any other anti obesity and weight loss drugs although relatively safe drug but it can cause many side effects. Some of the side effects are common and some are relatively less common. Some of the side effects are mild but some side effects of Phentermine can be potentially serious. Common side effects of Phentermine are nausea, vomiting, unpleasant taste in mouth and dryness of mouth, diarrhea, headache, dizziness, fatigue, libido may be less, acidity, pain in stomach, insomnia etc. Psychiatric side effects like psychosis, euphoria, nervousness, confusion, irritability etc. are also common.

Less common side effects of Phentermine are fever, weakness, fluctuating blood pressure, loss of consciousness, convulsions, hand tremors etc. Some less common psychiatric side effects of Phentermine are hallucination, aggressiveness, restlessness, panic etc. Severe diarrhea and severe vomiting can also occur as side effects of Phentermine, but are less common.
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