[harimau777]

My understanding is that part of the problem with mixing caffine with alcohol is that it can prevent someone from passing out; which is the body's defense mechanism against alcohol poisoning.

From that perspective I think that an argument could be made that restricting caffinated alcohol is regulating substances with known health risks.

Full disclosure: I like vodka Redbulls. So I'm not saying this like I'm someone who is moral panicking.

[TylerE]

No, the bodies defense against alcohol is vomiting. "Passing out" increases risk, namely that you vomit while asleep, and then choke on the vomit.

[doctorpangloss]

Four Lokos were indeed banned in Massachusetts.

[willy_k]

Four Loko had to take the caffeine out across the US years ago. Now it’s just 8 standard drinks in a tall boy for $4 - still very much a problem but no caffeine.

[kube-system]

The original caffeinated Four Loko formula was discontinued everywhere 16 years ago.