A mixed drink reputed to heighten pleasure, which Lwaxana Troi requests from DaiMon Tog while feigning affection for him aboard the Ferengi ship Krayton in Ménage à Troi.
The Arcturian Fizz is a cocktail mentioned in The Next Generation episode Ménage à Troi, set in 2366.
Kidnapped from Betazed by the infatuated Ferengi DaiMon Tog, Lwaxana Troi decides that the quickest way to help her daughter and Commander Riker escape is to play along. In Tog's quarters she pretends to warm to him, strokes his ears and asks whether he has ever tried an Arcturian Fizz, remarking that the drink has certain pleasure-enhancing qualities.
Her performance keeps Tog distracted long enough for Riker to break out of his cell and send a covert signal to the Enterprise. The drink's name points to Arcturus, home of the Arcturians glimpsed in Star Trek: The Motion Picture.