TAMSEAL-F TAB .  T amsulosin and Finasteride, which relieves the symptoms of benign prostatic hyperplasia. Tamsulosin is an alpha-blocker. It works by relaxing the muscle around the bladder exit and prostate gland so as to allow easy passage of urine. Finasteride is a 5-alpha-reductase inhibitor which helps in shrinking the prostate gland by decreasing the level of the hormone which helps the prostate gland grow.