Open Question: Will My Friend Live Or Die? Overdose Question.?

My friend of 21 mg of Tylenol PM 500 last Thursday, it did not go to the hospital because of his stubbornness. He was not really to eat, he also developed some insomnia. Now, he began in his left lower abdominal pain in an area of strange and in the area complained about the center, as well as a slight tenderness. He will see doctors this weekend .. he would be all right? I am very worried. I've been looking for all the information, I can gather on the Internet. Anyone who has any similar experience?