Hi Babette, welcome! Usually Prolia is reserved for those with severe osteoporosis and/or fractures, does this describe your situation?
This is the newest osteoporosis drug, and like all it has side effects. I've never taken it so I don't have any personal experience, but I can give you all the information on it from the manufacturer.
Here's the prescribing information on Prolia which includes the precautions, side effects, contraindications and who this drug is intended for. The link to the manufacturer is the first source at the end of the above article.
I would also check with your insurance company, if you decide to take it, to see if it's covered. Some insurances will insist you qualify for it with a t-score lower than -2.5 or if you're a high risk for fracture. As you know this is a twice yearly injection that is approximately 825.00 per injection.
Even though this is not a bisphosphonate, it has some of the same side effects, plus some different ones.
Please read the prescribing info and discuss this with your Dr. to see if this medication is right for you. Also, be sure to get calcium, D and weight bearing exercise in addition to any other treatment you may choose. Good luck!