It also has proven efficacy in preventing erectile dysfunction in risk-group populations. By facilitating restoration of and increasing sexual performance (potency), IMPAZA® helps maintain erectile capacity regardless of the time of drug administration. It relieves autonomic nervous system disturbances in andropause men (loss of muscle strength, easy fatigability, reduced physical activity, low libido, etc.). IMPAZA® is effective in age-related decline of sexual performance in men with hypertension, angina pectoris, or diabetes mellitus for whom no other erectile dysfunction treatments are acceptable. It helps to maintain sexual function under situations of stress and overexertion.