|"Are you a wizard or not?"
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This potion serves as an antidote to the drunkenness smaller creatures such as house-elves can get from over-consumption of Butterbeer. Dobby found an ample supply of this, along with an elf-sized bed, in the Room of Requirement when he went there seeking a place to hide Winky during her drunken binges.
- Harry Potter and the Order of the Phoenix (First appearance)