If you are experiencing pain or discomfort with Alprostadil (edex,caverject, prostaglandin) as many men do. you should investigate Bi-Mix or Tri-Mix. I have used Bi-mix successfully for over four years. Bi-Mix and tri-mix are mixed at a compounding pharmacy following your doctors Rx. Bi-mix is usually a 30/1 mix of papavarine and phentolomine. Tri-mix includes a small amount of of alprostadil too.
Many men have found bi-mix to be very helpful in regaining sexual function.