The other thing you might try, is to go with different needles. My first 3 months on Trimix worked fine with the 5/16 inch needle. But then it quit working, even if I would inject on both sides, which is not recommended.
I then switched to 29 gauge, 1/2 inch needles and now it works every time with .20 ML. Both Caverject and Edex prepared syringes are shipped with 1/2 inch needles.
I guess that I was too thick or had too much tissue for the 5/16 inch needle.
Age 60, PSA 2007 4.1, PSA 2008 10.0
Diagnosed April 2008, Biopsy: 6 of 12 cores positive, Gleason 4 + 5 = 9
CT and Bone Scan negative, Open surgery at Shawnee Mission Medical Center May 21, 2008
Right side nerves spared, Radical prostatectomy and lymph node dissection
Cather removed on June 3rd, totally dry on July 9th, pT2c, lymph nodes negative
PSA Sept 28, 2008 0.00, PSA Jan 22, 2009 0.00, PSA June 29, 2009 0.00
ED Status- Currently using Trimix, Levitra daily for increased blood flow.
Noctural Erections have completely returned on a nightly basis, same hardness as before.