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Abstract
One hundred impotent men and 15 sexually active male volunteers served as the source for this study. Serum prolactin was estimated in all cases using radioimmunoassay technique. Cases with hyperprolac-tinemia were treated with bromocriptin for 3 months. Hyperprolactinemia was detected in three patients only (3%), with no findings of pituitary tumors. Treatment with bromocriptin markedly reduced the level of serum prolactin together with improvement of sexual libido and potency. The mere presence of 3 cases only with hyperprolactinemia among 100 impotent subjects suggested that hyperprolactinemia is not one of the main causes of impotence.