scottbeammeup,
Reclast is one of those drugs that some take with no side effects, many take and experience flu like effects for several days or a week, and some have extreme misery lasting a year or more.
If your bone loss is strictly testosterone loss, I'd suggest a stronger bone building medication Tymlos or Forteo. It your bone loss might be related to bone metastasis Reclast (zoledronate) would give you better protection. The injection is much easier, unless you have side effects.
Zoledronate is usually given to cancer patients. One advantage is that you can get it at a lower dose.
There is more buzz on Reclast on the osteoporosis support page where you'll find osteonecrosis and atypical femur fracture. https://connect.mayoclinic.org/search/?search=reclast+side+effects
There isn't any way to get Reclast out of your system. So you are pretty much trapped for a year. The few who are hospitalized are given IV steroids.