My Husband Has Lost His Appetite, Was Dealing With His

My husband has lost his appetite, was dealing with his dad, found out he had cancer on the 4th of jan lost him on the 21st, HE is a heavy drinker and on Embryl, allopurinol, hydroxidene(spelling sorry), his color is bad and he had had a few bloody (red) stools, his labs from his doctor show liver AST and the other one up and is BUN is now 5, He is only drinking beer and went through 4 bottles of Jack daniels from Saturday to Saturday. Any suggestions to get him to a doctor, says he is fine, but I don't think so. He gets up and goes to work every day but his drinking has increased.