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Item# LC004465

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  • Prolactin
  • Item Catalog Number: LC004465

Prolactin is secreted by the pituitary gland. There are only two major functions of prolactin: to induce milk production and to develop nerve cells. Higher levels of prolactin have been associated with tumors involving the lungs, the pituitary gland, and the kidneys.

Prolactin is sometimes used by doctors to evaluate sexual dysfunction of unknown cause in both men and women. It seems higher levels of prolactin may disrupt normal orgasms.

Drugs, supplements, and certain diseases may disrupt normal prolactin blood levels. These include hypothyroidism, antidepressants, estrogen, pain killers, diuretics, and arginine.

Fasting is not required for this test. Take all medications as prescribed.

Special Note:
Any type of contraceptives that contain hormones will invalidate hormone results.


The laboratory services are for informational purposes only. It is not the intention of National Diagnostics, Inc and Life Extension to provide specific medical advice but rather to provide users with information to better understand their health. Specific medical advice including diagnosis and treatment will not be provided. Always seek the advice of a trained health professional for medical advice, diagnosis or treatment.

Both the physician and the testing laboratory are independent contractors with whom National Diagnostics, Inc makes arrangements for your blood tests. Neither National Diagnostics, Inc or Life Extension will be liable for any acts or omissions of the physician, the testing laboratory, or their agents or employees.