Wiktionary
neridronic acid
n. A bisphosphonate.
Wikipedia
Neridronic acid
Neridronic acid ( INN; the anion is called neridronate) is a bisphosphonate. In Italy it is used to treat Osteogenesis imperfecta and Paget's disease of bone.
A 2013 clinical trial suggests CRPS Type I ( Complex regional pain syndrome) responds to treatment with intravenous neridronate.