What happens when you take too many Tylenol?

If you take too many painkilling pills, or other medication, you could become very ill; in extreme cases your life might be threatened.

It depends on the type of medication, the amount taken, and over what period of time. A sudden large overdose needs immediate, urgent medical attention.

Taking any medication over a long period, or regularly taking more than the prescribed dose, can also be seriously harmful. Always follow a doctor's advice about long-term treatment: just because you can buy something without a prescription doesn't necessarily mean it's safe to keep on taking over long periods.