The Supreme Court announced that Justice Ruth Bader Ginsburg spent the night at Washington Hospital Center for observation after apparently experiencing a bad reaction to the combination of cold medication and a prescription sleeping aid Wednesday.

She had taken the medications before getting on a plane bound for London Wednesday evening. Once on the plane, she was extremely drowsy to the point of falling from her seat, the Court said. The 76-year-old justice was taken to the hospital, where she stayed overnight and was released Thursday morning, with doctors stating she is in stable health.