My friend takes 14 advil (ibuprofen) pms at once to sleep. (he says under 14 is ineffective) what effects could this have on his health? could this be lethal?

Advil (ibuprofen) PM overdose: Dangerous overdose and you should call the poison control center and have your friend see a physician immediately. Kidney and liver failure are two of the dangerous consequences. This is an overdose of both ibuprofen and diphenhydramine. Poison control center: 1-800-222-1222 https://www.nlm.nih.gov/medlineplus/ency/article/002636.htm https://www.nlm.nih.gov/medlineplus/ency/article/002655.htm