With more than 50% of the adult population in the UK and the USA currently classed as overweight, medication might sound like a perfect answer and it's not difficult to understand why. Many people struggle for years to lose weight, trying diet after diet with little or no success. Unfortunately, there are no magic pills and very little if any evidence to show that weight loss medication brings about any lasting results. Most people who lose weight whilst taking a diet pill, put it all straight back on again afterwards. There is only one way you can lose weight realistically, and that is to consume fewer calories over a period of time, than your body uses up. Weight loss medication is designed to artificially bring about this negative calorie balance.

There are basically 3 main ways in which weight loss medication works. Stimulants boost your metabolism so that you burn up more calories. Appetite suppressants trick your brain into telling you that you are full so that you eat fewer calories. Absorption inhibitors prevent fat and other nutrients from being absorbed by the body so that they are expelled and fewer calories are retained.

It is a sad symptom of our society today that instead of doing what we know for sure works; i.e. a healthy diet and more exercise, many people still look for a lazy way to lose weight that can also be detrimental to their health. Diet pills carry a number of serious health implications particularly if you suffer from heart problems, high blood pressure and many other medical conditions. They can also produce a variety of unpleasant side effects. Compare that with the fact that there are no side effects associated with eating a healthy diet and increasing your level of activity. Evidence clearly shows that a natural option is far more likely to result in permanent weight loss and better health than an artificial one, and yet many people continue to look for a quick fix.

The following are a few of the more common weight loss medications available either over the counter or on prescription.

Adipex - works by suppressing your appetite suppressant.

Bontril - is also an appetite suppressant.

Didrex (benzphetamine hydrochloride) - works in a similar way to amphetamine or speed to boost your metabolism and decrease your appetite.

Ionamin or phentermine - is an appetite suppressant.

Phendimetrazine - boosts your metabolism.

Reductil (Meridia in the US) or Sibutramine - works by inhibiting the reuptake of seratonin and noradrenaline in the brain giving you a "feel good" effect and making you feel full earlier than you normally would.

Tenuate - is a metabolism booster; it increases heart rate and blood pressure and decreases your appetite.

Xenical - inhibits the absorption of fats into the body

Weight loss medication is usually only prescribed by a physician to overweight people who have a BMI (Body Mass Index) of 30 or more, or sometimes less than 30 where there are serious risks to your health by being overweight that outweigh the risk of taking medication. Your BMI can be described as a body/fat ratio calculated using your height and weight and is an internationally recognised measure of obesity. If your BMI is between 25 and 30 then you are classed as overweight, if it's 30 or over then you are considered obese.

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