The invention relates to the field of medicine and pharmacology, specifically, to novel pharmaceutical compositions for intranasal administration comprising pentapeptide Thr-Lys-Pro-Arg-Pro or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable excipient. The compositions are highly effective and safe, and may be used to treat and/or prevent female sexual dysfunction, HSDD, FSAD, or FSIAD. The present invention also relates to a method of treating female sexual dysfunction, which includes administering the pharmaceutical composition according to the invention to a patient.