Ergometrine

Japanese: エルゴメトリン(英語表記)ergometrine
Ergometrine
Also called ergonovine. Uterine contraction hemostatic agent. A type of alkaloid extracted from ergot, it has a strong uterine contraction effect. It acts directly on the smooth muscle of the uterus to cause rapid contraction, which is rhythmic and sustained. Unlike other ergot alkaloids, it does not have a sympathetic nerve blocking effect and is less toxic. It is mainly used after childbirth, when uterine tone is reduced. It contracts the uterus and also facilitates placental detachment and reduces bleeding. It can also be administered orally. Side effects such as nausea, vomiting, dizziness, and tinnitus may occur. Ergometrine maleate is a semi-synthetic derivative of ergometrine, which has a stronger uterine contraction effect than ergometrine and is used for the same purpose as ergometrine. It has almost no side effects.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
エルゴノビンともいう。子宮収縮止血剤。麦角から抽出されるアルカロイドの一種で,子宮収縮作用が強い。子宮平滑筋に直接作用してすみやかに収縮させるが,その収縮は律動的で,持続性がある。他の麦角アルカロイドと異なって交感神経遮断作用はなく,毒性も低い。おもに分娩後,子宮の緊張が低下した状態に用いられる。子宮を収縮させると同時に胎盤の剥離を容易にし,出血を減少させる作用もある。経口投与も可能である。悪心,吐き気,めまい,耳鳴りなどの副作用が起ることがある。マレイン酸エルゴメトリンはエルゴメトリンの半合成誘導体で,エルゴメトリンより強力な子宮収縮作用を有し,エルゴメトリンと同様の目的で使用される。副作用はほとんどない。

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