If the patient is taking the following drugs, consult the doctor: Phosphate infusion, cardiac glycoside, thiazide diuretic, metabolites of vitamin D3 or vitamin D analogues, phenytoin, phenobarbital, primidone, rifampicin, isoniazid, orlistat, liquid paraffin, cholestyramine, glucocorticoid, multivitamin and mineral, calcitonin, etidronate, gallium nitrate, pamidronate, or plicamycin, calcium salt, conivaptan, aripiprazole, axitinib, saxagliptin, bile acid sequestrant, CYP3A4 inducer, deferasirox, mineral oil, orlistat, sevelamer, tocilizumab.