In medichal scholl a psychiatry told us that the if you take say 200cps of valium and drink all the booze you can to CTB you will most likelly wake 3 days later with a headeache. Suicide by modern pills is bull propagated by lazy screenrighting in movies and series. Oh, it hapenned all the time in the beggining of the 20th century but those were barbiturates. When they discovered benzodiazepines, the took the barbiturates out of market exactly because of the very small chance of OD on benzos.