No, Alphacept-8 Tablet is not used to improve erection; it contains Silodosin and is mainly used to treat urine problems caused by Benign prostatic hyperplasia by relaxing the muscles of the prostate and bladder to improve urine flow, it does not help with erection and may sometimes cause side effects like reduced or abnormal ejaculation, so if you are facing erection problems it is best to consult a doctor for proper diagnosis and treatment.