Definition of ergonovine
: an alkaloid C19H23N3O2 derived from ergot and used especially in the form of its maleate as an oxytocic
Medical Definition of ergonovine
: an alkaloid that is derived from ergot, has similar pharmacological action but reduced toxicity and a greater capacity to induce muscular contractions of the uterus, and is used especially in the form of its maleate C19H23N3O2·C4H4O4 to prevent or treat postpartum bleeding
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