Trods nogle problemer i undersøgelserne, der hovedsagelig var relateret til det faktum, at mange patienter led af co- morbid depression, var CHMP af den opfattelse, at der er evidens til støtte for virkningen ved denne indikation; men langtidseffekten var ikke blevet tilstrækkeligt påvist.
The CHMP considered that despite some problems in the studies, mainly related to the fact that many patients suffered from co-morbid depression, there is evidence to support the efficacy in this indication, however the long-term efficacy has not been sufficiently demonstrated.