Are you talking about an infusion with Prolia or Reclast? I have had 4 Prolia infusions(injections) over the past 2 yrs. I am on a Medicare Advantage Plan and the only way I could get it covered was to go to the infusion clinic and have it covered under Medicare PART B. It is very important if you have Medicare to specify PART B because it is covered differently. By doing this, my co-pay per injection was $200 however, I have a secondary insurance through my husband's work so the secondary picked up the co-pay.