Andy Dick may have overdosed on crack earlier this week … but, we’ve learned he actually drinks alcohol more often than he uses drugs — with vodka being his drink of choice.

Multiple sources who have known Andy for years tell TMZ … the comedian can easily drink more than a fifth of vodka a day … taking swigs basically from the time he wakes up until the time he eventually hits the hay.

We’re told he never has to pay for his alcohol … because enablers around him will always provide it to him — making it easy for the troubled comedian to get hammered.

We broke the story … sharing video of Andy slumped over on the street earlier this week while bystanders administered Narcan — a medication used to reverse the effects of an opioid overdose — to the passed out star. Paramedics responded to the scene … but Andy wasn’t taken to the hospital.