DLX: duloxetine; : number of affected patients; NA: not available; PLB: placebo; QD: once daily; TEAE: treatment-emergent adverse event.
aInsomnia was not analyzed as a TEAE in study 4; insomnia was reported as an adverse events in 1 patient receiving placebo, 2 patients receiving duloxetine 40 mg QD, and 1 patient receiving duloxetine 60 mg QD in study 4; insomnia was reported as adverse drug reaction in 1 patient receiving duloxetine 40 mg QD in study 4.