The triple combination may be safer because it contains lower doses of alprostadil. Since alprostadil must be injected, it's side effects include scarring and priapism, sustained painful erections. Impotence is associated with advancing age, heart disease, high blood pressure, diabetes, the taking of certain medications, depression, cigarette smoking, excessive alcohol drinking and spinal cord damage. If you suffer from impotence, check with your doctor to see if you can treat the cause. The most common cause of impotence is arteriosclerosis caused by eating too much fat, too little fiber, smoking, not exercising and having susceptible genes.
Arteriosclerosis is reversible with lifestyle changes.
If your testosterone is low, you can be treated with skin patches or injections. Urologists recommend surgical implants, but only after other treatments fail. I'm Dr. Gabe Mirkin on Fitness. This makes up 30 cc of sterile injectable fluid. Use 0.5 cc per injection.