"Prolactin Releasing Hormone" (PRH) is a crucial substance produced in the hypothalamus, responsible for stimulating the release of prolactin from the anterior pituitary gland. Although PRH is commonly referred to by this term, there are several alternative synonyms that can be used interchangeably. One commonly used synonym is "Prolactin Releasing Factor", as it denotes the hormone's ability to induce prolactin secretion. Another synonymous term is "Prolactin Releasing Peptide", highlighting the peptide nature of the hormone. Additionally, "Prolactin Releasing Factor Hormone" is used to emphasize both the hormone's function and classification. All these synonyms effectively convey the essential role of PRH in regulating prolactin levels in the body.