How long can I take Tylenol (acetaminophen) 3 for pain without liver damage? Have been on it for over a week am still in lots of pain. Would Tylenol (acetaminophen) 4 be better?

Safe if Prescribed. You do not have any risk of liver damage if you are taking as prescribed and are not abusing alcohol.Tylenol (acetaminophen) with codein is safe Follow up with your doctor about change in dose or another prescription for pain.