This 2015 case series evaluated 49 men with testosterone-induced azoospermia or severe oligospermia who underwent combination therapy with human chorionic gonadotropin (HCG) and adjunctive agents such as clomiphene citrate, tamoxifen, anastrozole, or recombinant follicle-stimulating hormone. Administered HCG at 3,000 IU subcutaneously every other day, the study observed a 95.9% recovery
