Compositions and methods for the prophylaxis and treatment of dysmenorrhea, endometriosis, and pre-term labor, using histidine

The present invention relates to methods and compositions for preventing or treating conditions or disorders of the female reproductive system by administering an effective dosage of histidine alone or in combination with other therapeutic agents. The invention relates also to novel physical compositions and delivery devices for administering histidine effectively to a female subject in need of either prophylaxis or treatment of certain disorders of the reproductive system.