[Verapamil-induced hyperprolactinemia--a case report].

In many cases hyperprolactinemia can be caused by taking medications. Occasionally, verapamil-treated patients experience a slight asymptomatic increase in serum prolactin level. In this article we report the case of 42-year woman with manifest verapamil-induced hyperprolactinemia whose clinical symptoms suggested the occurrence of prolactinoma. A marked increase in prolactin levels and the preserved reactivity of this hormone in dynamic tests suggested that the patient exhibited "hypersensitivity" to verapamil. In the described state of the examined female detection of the disease, verapamil withdrawal and temporary bromocriptine administration have led to a full normalization of patient's clinical status.