It often happens when people take the max dose of straight paracetamol, and then also take another drug that has paracetamol in it without knowing that (e.g. a

It often happens when people take the max dose of straight paracetamol, and then also take another drug that has paracetamol in it without knowing that (e.g. a codeine/paracetamol or ibuprofen/paracetamol combination).