Keywords: α-مسدود کننده ها; Lower urinary tract symptoms; Combination therapy; 5α-Reductase inhibitors; α-Blockers; Phosphodiesterase-5-inhibitors; Antimuscarinics; SÃntomas del tracto urinario inferior; Terapia de combinación; Inhibidores de la 5α-reductasa; Bloqueadores alfa;