In my opinion yes, aborted 6 head a couple years back, had two doses of Estrumate and did the rest with Lute. They were all 30-60 days the two that were Estrumated aborted the four that were Luted all had happy healthy babies a month after they were put out to pasture. Take it for what its worth but I'll never use anything but Estrumate again, even if it costs a little bit more.bwg1995 said:Any advantage to useing Estrumate over Lutalyse?