J Korean Diabetes Assoc.
1999 Dec;23(6):857-862.
A Case of Syndrome of Inappropriate Antidiuretic Hormone (SIADH) Associated with Amitriptyline in
a Patient with Diabetic Neuropathy
Abstract
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Amitriptyline is an effective drug for diabetic neuropathy, but rarely cause syndrome of inappropriate
antidiuretic hormone (SIADH) secondary to amitriptyline administration. We experienced a case of SIADH
associated with amitriptyline in a patient with diabetic neuropathy. A 64-year-old diabetic women was
admitted to the hospital because of severe general weakness and obtunded mentality. Medical history shows
that she was treated with amitriptyline for peripheral painful diabetic neuropathy in the past 5 years.
Her conditions were including severe hyponatremia, decreased serum osmolality, and elevated urine sodium
concentrations, which is consistent with SIADH. With discontinuation of amitriptyline, fluid restriction
and hypertonic saline administration, serum sodium level was normalized and general conditions improved. We
experienced SIADH that was associated with amitriptyline treatment for diabetic neuropathy, thus the current
report is to bring an awareness of hyponatremia in our medical community.