What is described is a method of preventing or treating heterotopic ossification, vascular calcification, and pathologic mineralization, comprising administering an drug, wherein the drug is an antagonist of the Hedgehog (Hh) pathway. For example the antagonist consists of arsenic trioxide, sodium arsenite, phenylarsine, GANT-58, GANT-61, zerumbone vismodegib (GDC- 0449,Genentech), bevacizumab, gemcitabine, nab-paclitaxel, FOLFIR, FOLFOX, RO4929097, cixutumumab, cisplatin, etoposide, LDAC, decit...