trimix,
you sure picked a screen name -
Interesting that many who have responded so far are GFMPH vets -
My uro/surgeon suggested an implant at less than a year out from surgery, but now two years out, he was probably right. The "trimix" drug, injected, works as advertised for most, but it is a real freak-out moment when the first night is prefaced with a needle.
The "vitamin V, L, & C" options don't do much for me (I am a "no nerves spared" case).
If you were considered "nerves spared", give them time for recovery. If not (like me). you might as well go ahead and experiment with the injections before you pull the trigger on an implant, just to understand the options.
There is a member of one of my support groups who has gone the implant road (the only individual I know locally), and is very happy with the results. He says it changed his post PCa life dramatically for the better, after finding that the shots were functional, but not practical.
I continue to consider it, but yet another surgery seems like yet another pain in the arse.