According to the few research studies on Cabergoline, it doesn’t help everyone (maybe 2/3 at best) and amongst the people who report a benefit, the amount of time to benefit can vary widely, up to 10 months or so. It’s hard to know what’s really happening with this drug, but you can increase the dose; my urologist suggested I bump it up from 1 pill to 1 1/2. So far, about 3 months in, I can’t say clearly that I’ve benefited. One thing that seems to help though, and all of us know it, is abstinence, which somehow enhances the anticipation and sensitizes whatever brain circuitry involved. And don’t try to hard or expect that you will quickly regain your youth in this regard (I’m grateful to have a life at 78 and be pretty fit and healthy (excepting my untreated prostate cancer) and active. My libido is still there, just not the physiology the other neurobiology components of my younger days. In this regard I’ve learned that getting an erection good enough for penetration is controlled separately from keeping the erection. But that’s a subject for another day.