This is the case of benzodiazepine overdose. (You have not mentioned that wether it was accidental or sucidal!!!) The patient should be kept under medical observation for vital monitering and supportive treatment . Also, after recovery, If she had taken these medicines out of sucidial ideation or impulsivity, she should see a psychiatrist for psycological assesment and counselling. So as to help her to not repeat these suicidal attempt in future.