<unk>  is a bisphosphonate that is FDA approved for the treatment of heterotopic ossification and paget's disease.   Common adverse reactions include gastritis, leg cramp, and headache.
Etidronic acid
Pamidronic acid
Zoledronic acid
Allopurinol 
Tiludronate
Etidronate
Risedronate
Alendronate