I just had another thought where it concerns survival of a CAH’ER stuck somewhere without meds or water and florinef is concerned.  Pretty much drinking their own urine would mean they should survive for much longer than if they didn’t also I’d say.  They pass excess cortisol, excess florinef and excess sodium out in the urine and this could be recycled for a while as well as some of the other nutrients that are passed away in the urine.