A friend asks you for advice knowing you had taken this clas…

A friend asks you for advice knowing you had taken this class. He is at the mini-mart looking for a pain medicine to help with his headache. He overheard you studying and recalls you saying something about a drug that has been shown to form something called a reactive metabolite that might result in liver failure, especially if taken at high doses, and with alcohol. You tell him that the name of the medication is: