Metergoline (INNTooltip INN, BANTooltip British Approved Name), also known as methergoline and sold under the brand names Contralac (veterinary) and Liserdol (clinical), is a monoaminergic medication of the ergoline group which is used as a prolactin inhibitor in the treatment of hyperprolactinemia (high prolactin levels) and to suppress lactation.

[1][2][3] Metergoline is a ligand of various serotonin and dopamine receptors.

[4][5][6][7][8] Morning glory: Argyreia nervosa (Hawaiian Baby Woodrose), Ipomoea spp.

(Morning Glory, Tlitliltzin, Badoh Negro), Rivea corymbosa (Coaxihuitl, Ololiúqui)