You and your doctor need to carefully evaluate the potential benefits of taking a drug and weigh them against the possible long-term risks.

你和你的医生需小心评估服用药物带来的好处和衡量它们可能造成的长期风险。

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Obesity has been a difficult field for drug companies because the side effects of any drug need to be minimal because of potential long-term use by otherwise healthy patients.

治疗肥胖症的药物的对医药公司来说是个难题，因为这些药物会被肥胖者或者健康的人长期服用，因此其副作用应该足够小。

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They said doctors and patients should consider a variety of factors while individually considering longer-term use of the drug.

他们认为医生和病人应该对各种因素都考虑周全而不仅仅考虑长期服用该类药品的风险。

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In fact, over the long term, drug use among young people now is far lower than it was in the late 1970s.

WHITEHOUSE: Largest Survey of Youth Drug Use Released Today

But the nearest-term potential for the drug will be in patients who have a rare genetic disease in which both copies of a gene that controls getting cholesterol out of the body are defective.

FORBES: Magazine Article

But over the long term, drug companies aren't likely to want to wade into fighting infectious disease without major government incentives, like patent extensions on completely unrelated drugs.

FORBES: Can Vaccines Make Money?