My Child's Pediatrician Prescribed Azithral Xl Liquid 200 For My

My child's pediatrician prescribed Azithral xl liquid 200 for my 10+ years son to be given twice daily. By mistake I misread it and gave her 5 ml thrice daily. Once in the morning once in the day and once in the night for the past yesterdat . he seems to be fine with no side effects and behaving normally Do I need to consult doctor.....his weight is 39.35kg