Is osteoporosis medications bad for your kidneys? my mom has bad kidneys ty

In some cases yes: B"sd The most prescribed are the bisphosphonates- the ones taken by mouth are only little absorbed and are do not lead to kidney problems. Several are IV, with Reclast (zoledronic acid) or zoledrenic acid given usually over 30 minutes once a year. Kidney complications can occur. Most likely if the medication is pushed in fast or if there is already kidney disease or impaired function. Prolia - is kidney safe.