Galactagogue is a term used to describe a substance that promotes the production of breast milk in lactating women. Synonyms for this word include lactagogue, milk booster, milk stimulant, milk enhancer, and milk-producing agent. Other terms that have been used to describe these substances are mammary gland secretagogue and lactation-promoting agent. These terms are often used in the medical field, particularly in the study of human lactation and breastfeeding. Galactagogues can be found in various forms, including herbal supplements, pharmaceutical drugs, and natural foods. Some common galactagogues include fenugreek, fennel, alfalfa, blessed thistle, and goat's rue.