The present invention is directed to cyclic sulfonamide derivatives of formula I: or a pharmaceutically acceptable salt thereof, which are monoamine reuptake inhibitors, compositions containing these derivatives, and methods of their use for the prevention and treatment of conditions, including, inter alia, vasomotor symptoms, sexual dysfunction, gastrointestinal disorders and genitourinary disorder, depression disorders, endogenous behaviorial disorder, cognitive disorder, diabetic neuropathy, pain, and other diseases or disorders.