1996 Volume 35 Issue 2 Pages 119-122
Nephrogenic diabetes insipidus (NDI) occurred in a 43-year-old woman who had received lobenzarit disodium for the treatment of rheumatoid arthritis (RA). Her urine output was initially 3 ι/day and urine osmolarity was 203 mOsm/ι. Based on a sodium chloride loading test and a vasopressin loading test, she was diagnosed as having lobenzarit-induced NDI. Seven days after the cessation of the use of lobenzarit disodium, polydipsia and polyuria disappeared, and the vasopressin test showed a normal response. These findings suggest that lobenzarit induces a reversible form of NDI as a side effect. The reports of lobenzarit-induced NDI in Japan during the past seven years are also reviewed.
(Internal Medicine 35: 119-122, 1996)