Goats rue is known as a potent galactagogue that is thought to actually build breast tissue.    From Wordnik.com.  [BellaOnline - The Voice of Women] Reference

The seeds are used in North America in dysentery and as a galactagogue, and the juice of the leaves as an emollient in diarrhoea and mild dysentery.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference