[Nephrogenous diabetes insipidus caused by amphotericin B]

A patient on systemic amphotericin B therapy developed polyuria with low osmolarity of the urine probably due to nephrogenic diabetes insipidus. This rarely reported side effect of amphotericin B appears not to necessitate discontinuation of the treatment provided adequate fluid intake can be guaranteed. The diabetes insipidus is reversible in 2-6 months after cessation of the treatment: in our patient the polyuria and the low urine osmolarity disappeared within a few days.