It was so interesting to read all the comments about Relcast. I'm in turmoil as to whether or not to start treatment after reading so many negative comments about side effects on other sites, but I feel better after reading more positive experiences here. I have been taking Prolia shots for 2 years, but my rheumatology group has begun switching their patients from Prolia to Reclast or Evenity because Prolia has to be taken twice a year forever whereas Reclast (recommended in my case) is only one injection a year for 3 years. I know it should be a "no brainer" for me to switch, but I never had any side effects from Prolia & my dexascan has shown an improvement even though I've only had 4 injections. Reclast is an "unknown" for me. Also, I'm a very petite (4'10") 81 year old and I was wondering whether the infusion dose is the same for everyone or adjusted to size of the person and whether that is something to take into consideration when thinking about the side effects?