Do you know anyone who has attempted suicide by ibuprofen overdose?

My 18 year-old nephew is currently in intensive care after taking a bottle of 120 ibuprofen + a combination of other unknown pills. It was five hours before he received medical attention, so his body had already absorbed much of the drug. He is not in a coma at this time, but isn’t coherent either. Does anyone know what to expect? How long until he is out of the danger zone? Sorry, this is all of the information I have, so I know your answers will have to be broad. Thanks in advance.