The invention is directed to the use of flibanserin or a pharmacologically acceptable derivative thereof, for the preparation of a medical composition for the treatment of Sexual Disorder in females whereby the medication of a patient is selected to achieve a significant change (with administration of a therapeutically effective amount of flibanserin) starting from a baseline (without administration of flibanserin), the significant change being achieved within at least one primary criteria for efficacy and optionally within at least one secondary criteria of efficacy.