Tranya is an orange-colored beverage native to the First Federation, often served very cold. It is unknown whether tranya is alcoholic in nature, nor whether it has some other intoxicating effect on the inhabitants of the First Federation or on other species.
Curzon Dax was fond of tranya, and it was popular enough that Quark kept it in stock in his bar on Deep Space 9. Jadzia Dax and Morn were also fond of tranya. (DS9 novel: Facets, DS9 novel: The 34th Rule, DS9 - Prophecy and Change short story: "The Devil You Know", DS9 - Mission Gamma novels: Twilight, This Gray Spirit)