My roommate took 20 000 mg of Tylenol Thursday night was sick all of Thursday. it is now Sunday and he is okay.?

If your roommate ingested 20,000 mg of Tylenol (acetaminophen), this is a potentially dangerous overdose, as the maximum recommended dose is usually 4,000 mg per day for adults. Symptoms of overdose can include nausea, vomiting, confusion, and liver damage. Given that your roommate is feeling okay now, it's crucial that he still consults a healthcare professional to assess any potential long-term effects from the overdose. Always seek immediate medical attention in cases of suspected overdose.