The testosterone recovery time varies widely with the individual and the longer you are on ADT (Lupron) generally the longer the recovery time. I am 78, have a Gleason score of 10 and have been on ADT for most of the past 9 years. If I were ever able to get off ADT it is unlikely that my T or stamina will ever recover. But I keep pushing. If you were on ADT for a year or more it is likely that it would take many months to rebound and possibly never get back to where you were. But keep at it and don’t get discouraged. You could be one of the lucky ones.