Hi Yes My 37 Year Old Son Was Given Morphine

Hi yes my 37 year old son was given morphine injection at the hospital for 3 days,now he is very sick,with black stool with blood in it,dizziness,weak all over,in alot of pain,dehydrated,severe vomitting,throws up blood ,what should he do,this has been 5 days now and not letting up any.