Sunday, November 10, 2013

An overview of short-term FDA approved weight loss drug

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 An overview of short-term FDA approved weight loss drug


Although there is a plethora of weight loss drugs on the market, however they are generally classified as either prescription or nonprescription based . Drugs weight loss prescription, also called ethical drugs are drugs that have been approved by the FDA and can only be purchased with the approval of a physician.

Similarly, different FDA approved drugs prescription weight loss can be classified into two groups based on their specific usage duration - ie being either short or long term. This article takes a look at the current FDA-approved drugs to short-term weight loss and coincidentally , they all happen to be the appetite suppressing drugs .

Appetite suppressing drugs work either by decreasing appetite or increasing the feeling of satiety. They usually work on the basic idea of ​​control of the hypothalamus - the central control of appetite brain - increasing one or more brain chemicals that modulate mood and appetite.

The appetite suppressant approved drugs belong to a group of drugs called phenethylamines - roughly similar to amphetamines. Amphetamines are just a group of powerful stimulant drugs that act on the central nervous system that normally causes increased heart rate, blood pressure and energy levels . Although phenethylamines are chemically similar to amphetamines, but they have significantly reduced side effects associated with amphetamines impact .

The appetite suppressing drugs approved by the FDA affect the central nervous system through several different active ingredients and mechanisms of modulation. These appetite suppressant medications can be divided into three main groups of assets following principles:

Phentermine
These are probably the loss drugs most widely used short-term prescription based weight today. Phentermine appetite suppressant based were first approved in 1959 specifically to be used for short-term treatment of obesity, usually no more than six months.

The main active ingredient in Phentermine hydrochloride Phentermine stimulates a group of neurotransmitters known as catecholamines including adrenaline ( also known as adrenaline) , norepinephrine and dopamine. Phentermine hydrochloride affects the central nervous system causing a "fight or flight " state in the body.

This condition is generally believed to cause the brain does not receive the hunger signals from the stomach could be sent because of its focus on how to meet the immediate need and more serious for energy caused by the "fight or flight " signals.

In addition to the above effect , Phentermine , it also intends to increase the level of leptin - the removal of the hunger hormone that normally creates a feeling of fullness in the body. In addition, Phentermine is thought to inhibit the function of the neurotransmitter called neuropeptide Y, which is supposed to reduce the levels of physical activity , encourage fat storage and increase appetite .

Therefore, based phentermine appetite suppressing drugs have the combined capacity of making a person feel full , thus inhibiting hunger , reduce body fat storage , and increasing energy levels. < ---------

However, some side effects have Phentermines degrees which include constipation , dry mouth, various insomnia, blurred vision , irritability and withdrawal symptoms and dependence.

Phentermine hydrochloride is marketed under many brand names such as Adipex -P, Fastin , Ionamin , Pro- Fast , Teramine , Oby -Trim , Anoxine -AM Phentrol , Obestin -30 and Zantryl among others.

Phendimetrazine
Phendimetrazine is a phenylalkylamine sympathomimetic amine that belongs to the phenethylamine group of drugs and has been approved by the FDA in 1976. It works by stimulating the central nervous system , but in a way stronger than Phentermine .

Phendimetrazine is available both as an immediate release ( scheduled) of the capsule is taken two or three times per day in the form of extended-release tablet that can be taken once a day . Although it is known to provide users with sustained energy levels throughout the day, however it lacks the appetite suppressing ability of Phentermine .

However, people with high blood pressure , glaucoma , heart disease, arteriosclerosis, and it is strongly advised not to take Phendimetrazine . Some of the side effects of using Phendimetrazine include constipation , dizziness, headache , insomnia, dry mouth and Phentermines as they can easily become addictive .

Phendimetrazine is sold under various brand names, including Adipost , Bontril , Plegine , Prelu -2, and X - Trozine .

diethylpropion
Diethylpropion hydrochloride based drugs to suppress appetite have been approved by the FDA in 1959, but are not really as popular as others. Diethylpropion is usually prescribed for short-term use of the order of a few weeks as part of a general system of weight loss.

Diethylpropion stimulates the central nervous system , causing an increase in heart rate and blood pressure , while suppressing appetite. However, the exact mechanism Diethylpropion stimulates the central nervous system , leading to the suppression of appetite is not yet fully understood. Some of the side effects associated with the use Diethylpropion include irritability , headache , dizziness , insomnia, dry mouth and constipation.

Diethylpropion Tenuate is marketed under the brand and is available in both immediate-release tablets ( Tenuate ) and controlled-release tablets ( Tenuate Dospan ) .

However , it is important to understand that weight loss drugs containing prescription can not be approved for use in people who are considered overweight (with a BMI of 27 or more and having a condition related to the obese) or obese ( with a BMI of 30 or more and having a condition linked to obesity ) . Some of the conditions associated with obesity can include hypertension, type II diabetes , or hyperlipidemia - excessive levels of fats such as cholesterol and triglycerides in the blood.

Fortunately for those seeking immediate relief , Phen375 , which is also known as Phentemine375 is a new appetite for pharmaceutical quality clinically proven and effective fat burner and hunger .

Phen375 is manufactured in FDA registered pharmaceutical companies in California and made ​​of high quality active ingredients such as Dimethylpentalyne , Trimethylxanthine , dehydroepiandrosterone (DHEA) and L- carnitine. The combination of these compounds in Phen375 is virtually non - prescription weight loss supplement most powerful available today.

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