He's lucky it was just his liver. People who overdose or try to commit suicide with it are not in for a good time or quick death and after it's absorbed into your body it will cause a systemic shutdown of several organs like the kidneys and pancreas. Not just the liver, and there's absolutely no way to counteract this after that first 36 hours. You will die (you aren't getting all of the organs replaced) and it will take days before you succumb. No antidote or life support or anything can be done for you.
You'll feel fine the first day but may have some vomiting. By day 3 the jaundice and stomach pain sets in as the liver is first to show signs of the organs failure and it's no longer possible to counteract the drug. By the fourth day your organs start shutting down and you'll have much more pain and vomiting. All that can be done is get your affairs in order because you'll be dead and in pain while you wait around to die and regret your suicide.
I say suicide because it's almost always intentional. It usually takes 40 325mg pills to cause this, although the liver damage can be caused with 20+ pills in an adult, generally. If you think you've possibly overdosed get to the hospital quick and tell them what you've taken so they can start you on Acytylcystine. If you "feel fine" after the first day or so and think you're all good you may be wrong and when day Tyree rolls around and your feeling bad or jaundiced your liver is already wrecked and can't be fixed.
