Apparently in one of its last trials, Nebido demonstrated a rapid achievement of steady state testosterone levels, minimal excursions outside of the normal range, and an extremely high percentage of patients maintaining a normal testosterone range. It is extremely long-acting! Initial dose (IM injection) is followed by another dose 4 weeks later, and then injections every 10 WEEKS following that!!!! Can you imagine only having to inject every 10 weeks!?!?! How cool is that?!?!?! Hope it works as well as they're thinking it's going to!