methylergonovine


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meth·yl·er·go·no·vine

 (mĕth′əl-ûr′gə-nō′vĭn)
n.
A semisynthetic ergot alkaloid, C20H25N3O2, that stimulates uterine contractions and is used in its maleate form to treat or prevent uterine bleeding after childbirth or abortion.