“…Syndrome of inappropriate antidiuretic hormone (SIADH) is a disorder in which inappropriate secretion of antidiuretic hormone (ADH) causes hyponatremia ( Yasir and Mechanic, 2022 ). It has been reported that some patients develop SIADH during platinum drug use ( Fujitsuka et al, 2022 ), with carboplatin reported to cause hyponatremia significantly less frequently than cisplatin ( Ezoe et al, 2018 ). There is no clear recommendation regarding measures that should be taken in cases of carboplatin-induced SIADH.…”