IRCT20150420021869N4 IRCT 2021-08-06 Bagheiat-allah University of Medical Sciences the effect of synbiotic on seminal fluid Efficacy of Synbiotic (FamiLact) as an Adjuvant Therapy in Improvement of Semen Parameters of Patients Undergoing Varicocelectomy: A Randomized Double-Blinded Controlled Trial 2021-08-23 anticipated 84 Complete https://irct.ir/trial/57785 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: In this study, patients are randomly assigned to control and intervention groups In individual units by random allocation software. In this way, the number of each patient is given to the software and the patient group (case or control) is specified, Blinding description: This is a double-blinded study in which participants and evaluators of the outcome are blind. In such a way the participant by random allocation software is randomly assigned to the case or control group. Then, if he is in the case group, he will receive the drug, and if he is in the control group, he will receive a completely similar placebo. The participants don't know that they are receiving medication or the placebo and the outcome assessors do not know the group of participants too and record their findings based on patient numbers. 3 infertility. Intervention 1: Intervention group: In this group, patients receive one Familact capsule containing 500 mg of synbiotics made by Zist takhmir Pharmaceutical Company for 6 months. Intervention 2: Control group: In this group, patients receive one capsule per day similar to the intervention group without the effective substance for 6 months. 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 no more information