I Am Living With An Alcoholic Who Takes Prescription Drugs

I am living with an alcoholic who takes prescription drugs - he seems to be fine during the day, but when he takes his evening drugs including lorazepam I have found him after falling and hurting himself. He was with out the lorazepam for 1 day, and appeared to be normal in the evening when I got home. Tonight I found him on the floor again and had hit his upper arm and leaving a slight blood trail on the floor from his break in the skin. I believe it is his combination of alcohol use as well at the lorazepam. I have lived with him for 21 years and the last 10 have been the worst, although he comes back and does better.