Primary Hyperparathyroidism, also known as familial primary hyperparathyroidism, is related to hyperparathyroidism, neonatal severe and hyperparathyroidism 2 with jaw tumors. An important gene associated with Primary Hyperparathyroidism is MEN1 (Menin 1), and among its related pathways/superpathways are Signal Transduction and G alpha (s) signalling events. The drugs Salmon calcitonin and Cinacalcet have been mentioned in the context of this disorder. Affiliated tissues include bone and kidney, and related phenotypes are homeostasis/metabolism and endocrine/exocrine gland