单项选择题

Some Sleep Drugs Do More than Make You Sleep
The United States Food and Drug Administration has ordered companies to place strong new warnings onthirteen drugs that treat sleep disorders. It also ordered the makers of the sleeping pills to provide informationfor patients explaining how to safely use the drugs. Last Wednesday, the FDA announced that some of these drugs can have unexpected and dangerouseffects. These include the risk of life-threatening allergic reactions. They also include rare incidents of strangebehavior. These include people cooking food, eating and even driving while asleep. The patients later had nomemory of doing these activities while asleep. Last year, a member of the United States Congress said he had a sleep-driving incident. Patrick Kennedy,a representative from Rhode Island, crashed his car into a security barrier near the building where lawmakersmeet. The accident happened in the middle of the night and no one was hurt. Mr.Kennedy said he had earlier taken a sleep medicine. He said he was also being treated with a stomach sickness drug that could causesleepiness. The FDA did not say in its announcement how many cases of sleep-driving it had documented. However,the New York Times reported last year about people who saidthey had strange sleep events after taking thedrug Ambien. Some reported sleep-driving and sleep-walking. Others said they found evidence after wakingin the morning that they had cooked food or eaten in their sleep. But they had no memory of carrying out theactivities. An FDA official says that these serious side effects of sleep disorder drugs appear to be rare. But, he alsosays there are probably more cases than are reported. He says the agency believes the risk of such behaviorscould be reduced if people take the drugs as directed and do not drink alcohol while taking the drugs. The Food and Drug Administration has advised drug companies to carry out studies to investigate the problem.

The risk of strange behaviors resulting from taking sleeping pills could be reduced it（）

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