IRCT20221127056624N2 IRCT 2023-05-10 Babol University of Medical Sciences The effect of tadalafil alone and tadalafil with tamsulosin in sexual dysfunction Comparison the effect of tadalafil 20 mg alone and tadalafil 5 mg with tamsulosin on erectile dysfunction in diabetic patients 2021-07-16 anticipated 154 Complete https://irct.ir/trial/67056 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The method of allocating the subjects after applying the inclusion and exclusion criteria will be random allocation in the block method. The randomization unit is an individual. The size of the blocks is 4 and in each block each intervention group will be repeated twice. Then using Excel 2016 software, a sequence of size 154 will be produced. Using this randomly generated list, the participants are assigned to one of the two study groups. In order to hide the list of random allocation, a special code will be assigned to each of the intervention groups, which only the main executor of the project (supervisor) will be aware of. 3 Erectile Dysfunction. Intervention 1: Intervention group: Tadalafil 20 mg tablets(Farabi, Iran), one tablet daily for 4 weeks. Patients were evaluated before treatment, 4, 8, and 12 weeks after treatment by International Prostate Symptom Score and International Index of Erectile Function. Q max is evaluated before treatment and after 12 weeks. Intervention 2: Control group: Treatment with tamsulosin 0.4 mg(Farabi, Iran) with tadalafil 5 mg(Aria, Iran) once a day for 4 weeks. Patients are evaluated before treatment, 4, 8 and 12 weeks after treatment by international score of prostate symptoms and international index of erectile function. Q max is evaluated before treatment and after 12 weeks. No - There is not a plan to make this available Justification or reason for not sharing IPD is .