What will be the effect of overdose on excedrin (apap/asa/caffeine)?

LIver failure, death: Acetaminophen (found in tylenol, (acetaminophen) excedrine, and many over-the-counter and prescription medications) is safe in standard doses, but highly dangerous when overdosed. Liver failure severe enough to require liver transplant to continue to live can occur, as can death. No prescription or over-the-counter medicine should ever be taken above prescribed/labeled limits.

Organ damage: Either your kidneys or liver can become permanently damaged. Follow the directions on the bottle to prevent serious complications.

Death: An overdose would be quite dangerous and possibly lead to damage to both your liver and kidneys. Please do not exceed the manufacturer recommendations when taking over-the-counter medications.