Consult a physician if co-administration w/ phosphate infusion, cardiac glycoside, thiazide diuretic, vit D
3 metabolites or vit D analogues, phenytoin, phenobarb, primidone, rifampicin, INH, orlistat, liqd paraffin, cholestyramine, glucocorticoid, multivit & mineral, calcitonin, etidronate, gallium nitrate, pamidronate, or plicamycin, Ca salt, conivaptan, aripiprazole, axitinib, saxagliptin, bile acid sequestrant, CYP3A4 inducer, deferasirox, mineral oil, sevelamer, tocilizumab.