I’m no doctor, but I think acetamenophen (Tylenol) is not something a person with compromised liver function needs to be ingesting.
“Use over-the-counter medications carefully. Liver cirrhosis makes it more difficult for your liver to remove drugs from your system. For this reason, ask your doctor before taking any medications, including nonprescription drugs. In general, avoid aspirin, ibuprofen (Advil, Motrin, others) and naproxen (Aleve, others). If you have liver damage, your doctor may recommend acetaminophen (Tylenol, others) in low doses for pain relief, though this drug carries some liver risks, too.”
http://www.mayoclinic.com/health/cirrhosis/DS00373/DSECTION=lifestyle%2Dand%2Dhome%2Dremedies