Indevus currently sells treatments for overactive bladder, prostate cancer and central precocious puberty.

Botox is now in mid- and late-stage trials as a treatment for overactive bladder.

Privately held Esprit sells an overactive bladder drug called Sanctura.

Drugs for overactive bladder had combined global sales last year approaching $2 billion.

Maxi-K channel openers or gene therapy may therefore provide therapeutic benefit for the overactive bladder.