07 October 2008

Weight loss is a process to losing body weight, typically by losing fat. The weight loss can be achieved by consuming low-calorie diets and completely expending the consumed calories. There are different methods to achieve weight loss. It can be achieved by reducing the amount of food consumed, increasing physical activity or a combination of the two and also can be achieved by surgical methods or by eating some pills or drugs.

Weight Loss Pills or Drugs
Those pills are medication or drug that helps losing weight. The Weight loss pills may also termed as anti-obesity drugs, include all pharmacological treatments intended to reduce or control weight. This drugs can be prescribed or herbal drugs or chemicals that decrease appetite and/or increase physical activity, such as fenfluoramine, ephedra, nicotine or cocaine.
The weight loss drugs are medically prescribed only in cases of morbid obesity, where weight loss is life-saving.

The Mechanism
  • Suppression of the appetite.
  • Increase of the body's metabolism.
  • Interference with the body's ability to absorb specific nutrients in food.
Anorectics
  • It is substances that reduce the desire to eat.
  • Also known as Anorexigenics.
  • Primarily intended to suppress the appetite, but most of the drugs in this class also act as stimulants (dexedrine, e.g.), and patients have abused drugs “off label” to suppress appetite (e.g. digoxin).
Amphetamine
  • It is a synthetic drug used as an appetite suppressant.
  • Amphetamine and its derivatives (amphetamines) are part of a broader class of compounds called phenethylamines.
Fen-phen
  • An anorectic, was an anti-obesity medication, which consisted of two drugs : fenfluramine and phentermine. Fenfluramine (Pondimin).
  • Withdrawn from the U.S. market in 1997 after reports of heart valve disease and pulmonary hypertension.
  • Phentermine is still available in most countries, including the U.S. Internationally. Phentermine is a Schedule IV drug under the Convention on Psychotropic Substances
Ephedra
  • These plants occur in dry climates over a wide area mainly in the Northern Hemisphere, across southern Europe, north Africa, southwest and central Asia, southwestern North America, and, in the Southern Hemisphere, in South America south to Patagonia.
  • Also called Joint-pine, Jointfir, or Mormon-tea, ma huang (Chinese), sea purple
Cocaine
  • Cocaine is a crystalline tropane alkaloid that is obtained from the leaves of the coca plant.
  • It is a stimulant of the central nervous system and an appetite suppressant.
The Side Effects
The use of the weight loss medication can cause some serious side effects including :
  • Physical illness or disorders
  • Heart valve disease
  • Pulmonary hypertension
  • etc
Amphetamines side effects including :
  • Addiction
  • Tachycardia
  • Hypertension
  • Making prolonged unsupervised use dangerous
  • A loss of weight can also be the symptom of some mental or physical diseases or disorders, such as anorexia nervosa or the cachexia associated with cancer or AIDS

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