Hector and Wenceslas drink brandy. Wine is served with dinner. Bette, Hector, Crevel and others drink at a dance. Wenceslas and others drink wine. We see people on the street who drink.
People drink at a financial lender's office.
Jenny drinks in several scenes. Crevel and others drink in a club. Although we don't explicitly see it, and neither bloody nor gory, we do hear a man urinating on the street. Crevel's scalp is bloody and Hector has a small, bloody bullet hole in his leg after a pistol duel. A person who's been shot has blood run from their mouth, and later we see the corpse in a morgue with a small bullet hole in the chest.