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(单词翻译:双击或拖选)
Washington
15 June 2007
With obesity1 an epidemic2 practically worldwide, drug companies have been in a race to find a diet pill that can be sold without a prescription3. Glaxo Smith Klein won that race with a new drug called Alli. But, as VOA's Carol Pearson reports, it is no magic pill. Alli requires a commitment to a change in eating habits.
Americans alone spend more than a $1 billion a year on weight loss products. Imagine if the tens of millions of people worldwide had easy access to a diet pill.
"The market is so enormous and there are so many overweight people desperate for solutions," says Professor Kelly Brownell is director of Yale University's Center for Eating and Weight Disorders4.
Alli is a non-prescription version of Xenical, a more potent5, prescription-only weight loss drug. Both drugs are brand names for orlistat. They work by blocking fat in the digestive track. The manufacturer admits Alli is not a magic pill, and users need to make a commitment to lifestyle change.
"The typical pattern for people on weight loss drugs is to go into it with a lot of enthusiasm," says Professor Brownell. "Many people don't lose as much as they like. They get discouraged and go off the drug."
Glaxo Smith Klein advises people to use Alli in combination with a low-fat diet and exercise. But there are some side effects. The pill can cause gas, painful stomach cramps6 and diarrhea.
While the U.S. Food and Drug Administration approved Alli, the FDA's health advisory7 panel rejected another weight-loss drug - rimonabant - because studies show it increases the risk of suicidal thoughts in some patients. Rimonabant's manufacturer suggested that physicians screen patients before they prescribe this drug. Rimonabant is available in Europe under the brand name Acomplia.
Experts say while weight-loss drugs can be helpful, they miss the larger point, which is more emphasis on preventing obesity in the first place.
1 obesity | |
n.肥胖,肥大 | |
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2 epidemic | |
n.流行病;盛行;adj.流行性的,流传极广的 | |
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3 prescription | |
n.处方,开药;指示,规定 | |
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4 disorders | |
n.混乱( disorder的名词复数 );凌乱;骚乱;(身心、机能)失调 | |
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5 potent | |
adj.强有力的,有权势的;有效力的 | |
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6 cramps | |
n. 抽筋, 腹部绞痛, 铁箍 adj. 狭窄的, 难解的 v. 使...抽筋, 以铁箍扣紧, 束缚 | |
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7 advisory | |
adj.劝告的,忠告的,顾问的,提供咨询 | |
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