article 1989 Danazol-induced hypercalcaemia in alphacalcidol-treated hypoparathyroidism Postgraduate medical journal ·doi:10.1136/pgmj.65.769.849 We report a case of idiopathic hypoparathyroidism, maintained on alphacalcidol who developed hypercalcaemia during treatment with danazol for endometriosis.