The present disclosure describes compositions and methods for treating at least one symptom of an anxiety disorder in a human subject. The compositions and methods employ a therapeutically effective amount of a compound of formula I (Compound I) or formula II (Compound II, or a pharmaceutically acceptable salt, hydrate or solvate of Compound I or II.本揭示說明處置人類受試者之至少一種焦慮症症狀的組成物及方法。該組成物及方法係施用治療有效量的式I化合物(化合物I)或式II化合物(化合物II),或化合物I或II之藥學上可接接受的鹽、水合物或溶劑合物。