<prompt> Which of the following statement is true concerning GalactorrheaSerum prolactin PRL is above 20 ngmlPituitary adenoma worsens the prognosisAssociated with menstrual disturbances infertilityAll of the above  <response>: Ans. D. All of the aboveA number of drugs are known to cause galactorrhea, example: Methyldopa, reserpine, amphetamine, metoclopramide, phenothiazine, tricyclic antidepressant, butyrophenones, and Isoncx. 