Achondroplasia, also known as achondroplastic dwarfism, is related to achondroplasia, severe, with developmental delay and acanthosis nigricans and hypochondroplasia. An important gene associated with Achondroplasia is FGFR3 (Fibroblast Growth Factor Receptor 3), and among its related pathways/superpathways are ERK Signaling and Signal Transduction. The drugs Hormones and Hormone Antagonists have been mentioned in the context of this disorder. Affiliated tissues include bone and spinal cord, and related phenotypes are kyphosis and limb undergrowth