(S)-5,5-Dioxo-9-((3,3,3-trifluoro-2-hydroxy-2-methylpropanoyl)amino)-4,10-dihydrothieno(3,2-C)(1)benzothiepin-10-one
KW-7158 is a tricyclic compound with a non-cholingergic mechanism of action for the treatment of "urinary urgency," "frequent urination" and "urinary incontinence" associated with bladder overactivity (involuntary abnormal contraction of the bladder). The therapeutic effects of KW-7158 in overactive bladder may be due to the activation of A-type K(+) channels which regulate afferent neuron excitability and firing properties in the dorsal root ganglion neurons.