Amulet of the Drunkard

This amulet smells of old, ale-stained wood.
While wearing it, you can regain 4d4 + 4 hit
points when you drink a pint of beer, ale, mead,
or wine. Once the amulet has restored hit points,
it can't do so again until the next dawn.
"S'good...BURP...wansum?"