IRCT20100127003210N21 IRCT 2021-04-04 Shahid Beheshti University of Medical Sciences Evaluation and comparison between Diltiazem gel 2% and lubricating gel effects on female with sexual dysfunction Evaluation and comparison between Diltiazem gel 2% and lubricating gel effects on female with sexual dysfunction refer to psychosexual clinic 2021-04-13 anticipated 40 Complete https://irct.ir/trial/53602 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Simple Individual Randomization with the Card in Two Groups A and B, in this Way a Number of Cards are selected as the first Intervention Group and the same Number in the second Intervention Group, then by merging the Cards together one Card is drawn and its Allocation is recorded and the Card is returned to the other Cards after it has been removed. The Cards are then re-merged and another Card is withdrawn. The Process continues until a Random Sequence Sample Size is reached. 3 Lack or loss of sexual desire. Intervention 1: Intervention group:In people with a history of sexual dysfunction, the effect of diltiazem topical gel 2% on improving sexual function is investigated.Thus, before starting the study and also after using diltiazem gel 2% for 5 times in a period of 5 weeks, the FSFI questionnaire should be filled in by the person participating in the study and the score changes in this intervention are measured.This gel is used externally in the outer part of the vagina. Also, for better effect, it should be used one hour before intercourse. Intervention 2: Control group: In this study, lubricant gel is used to compare the effect of diltiazem gel 2% with placebo. The duration of the study period in this group is 5 weeks and the number of uses is 5 times. Before and at the end of the study, the FSFI questionnaire should be completed by individuals. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is not more data.