Review shows the insomnia drug Ambien may cause major improvements in patients with neurological conditions, including coma, stroke, and Parkinson's. Some vegetative patients improved to a minimally conscious state or even tried to speak to their loved ones for the first time in years.

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Review shows the insomnia drug Ambien may cause major improvements in patients with neurological conditions, including coma, stroke, and Parkinson's. Some vegetative patients improved to a minimally conscious state or even tried to speak to their loved ones for the first time in years.