Laboratory director Elizabeth Pratt conceded that zolpidem is `` a very potent , fast-acting hypnotic , '' that begins to hamper cognitive ability and motor skills within 15-45 minutes . Kerry Kennedy , daughter of the late Sen. Robert F. Kennedy , was in an accident in 2012 . She suffered a broken leg and arm but is expected to make a full recovery. She is on trial on a misdemeanor charge of driving while intoxicated . Kennedy says she took what she thought was medicine but it could have been a sleep aid .
Kerry Kennedy , daughter of the late Sen. Robert F. Kennedy , was in an accident in 2012 . She suffered a broken leg and arm but is expected to make a full recovery. She is on trial on a misdemeanor charge of driving while intoxicated . Kennedy says she took what she thought was medicine but it could have been a sleep aid .