Translations:Metformin/55/en

The biguanide class of antidiabetic medications, which also includes the withdrawn agents phenformin and buformin, originates from the French lilac or goat's rue (Galega officinalis), a plant used in folk medicine for several centuries. G. officinalis itself does not contain any of these medications, but isoamylene guanidine; phenformin, buformin, and metformin are chemically synthesized compounds composed of two guanidine molecules, and are more lipophilic than the plant-derived parent compound.