I started Cialis (without the separate tubs ) as soon as my catheter was removed (11 days). At about the same time I also used a pump about every other day to get the blood flowing and to work on being able to maintain the pump induced erection. After about three months with stimulation was able to get an erection, but was unable to maintain it so I tried a "ring" with limited success. Finally, after my first PSA I asked the doctor if there was anything I could do to help maintain the erection. He said just use your hand and grip it at the base once I achieved an erection. It was a little strange, but I was able to achieve penetration in this way. Finally, at about 6 months it was like the switch was flipped and I was able to maintain without using the "death grip" and achieve intercourse. I seemed to level off again for a month or so until at almost exactly the one year anniversary where everything started working pretty much back to pre-surgery days. Practice makes perfect and if you have a willing partner all the better. I now can even occasionally get erections good enough with no Cialis. It was difficult at times to remain positive, but the less I worried about it the better it got. Best of luck to you.
Age:60 Diagnosed: Jan. 2012, Age 58
Original PSA Level 3.9 ......Gleason: 3+4
Biopsy results: 3 of 12 tested positive for cancer
Da Vinci Surgery 2/10/12
Negative Margins, cancer contained to prostate
Continent after 3 weeks
Sexual function fine with Cialis and sometimes without
PSA undetectable for over a year now.