Definition: Sphenovomerine is a hormone that plays a role in the development and maintenance of sexual desire. It is also known as vasopressin, which is produced by the pituitary gland to regulate the release of hormones such as adrenaline and noradrenaline. The exact mechanism by which sphenovomerine affects sexual behavior is not fully understood, but it has been associated with changes in the hypothalamic-pituitary-adrenal (HPA) axis and its response