15 tablets everyday is abnormal. Ideally it should not be taken more than every 4 hourly basis. Overdosage with paracetamol
(usually around 10-12gm/day) can cause severe liver damage. The most important thing is to stop taking so many pills immediately. Does he have any complaints as of now? If he has any nausea
, abdominal pain
- take him to a doctor immediately.