Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
325.179026995
InChI
InChI=1S/C19H23N3O2/c1-11(10-23)21-19(24)13-6-15-14-4-3-5-16-18(14)12(8-20-16)7-17(15)22(2)9-13/h3-6,8,11,13,17,20,23H,7,9-10H2,1-2H3,(H,21,24)/t11-,13+,17+/m0/s1
InChI Key
InChIKey=WVVSZNPYNCNODU-XTQGRXLLSA-N
IUPAC Name
(4R,7R)-N-[(2S)-1-hydroxypropan-2-yl]-6-methyl-6,11-diazatetracyclo[7.6.1.0^{2,7}.0^{12,16}]hexadeca-1(16),2,9,12,14-pentaene-4-carboxamide
Traditional IUPAC Name
ergonovine
SMILES
[H][C@@]12CC3=CNC4=CC=CC(=C34)C1=C[C@H](CN2C)C(=O)N[C@@H](C)CO
Độ hòa tan
2.68 mg/mL at 25 °C
pKa (strongest acidic)
15
pKa (Strongest Basic)
7.93
Refractivity
95.05 m3·mol-1
Dược Lực Học :
Ergonovine belongs to the group of medicines known as ergot alkaloids. These medicines are usually given to stop excessive bleeding that sometimes occurs after abortion or a baby is delivered. They work by causing the muscle of the uterus to contract.
Cơ Chế Tác Dụng :
An ergot alkaloid with uterine and vascular smooth muscle contractile properties. [PubChem]
Ergonovine directly stimulates the uterine muscle to increase force and frequency of contractions. With usual doses, these contractions precede periods of relaxation; with larger doses, basal uterine tone is elevated and these relaxation periods will be decreased. Contraction of the uterine wall around bleeding vessels at the placental site produces hemostasis. Ergonovine also induces cervical contractions. The sensitivity of the uterus to the oxytocic effect is much greater toward the end of pregnancy. The oxytocic actions of ergonovine are greater than its vascular effects. Ergonovine, like other ergot alkaloids, produces arterial vasoconstriction by stimulation of alpha-adrenergic and serotonin receptors and inhibition of endothelial-derived relaxation factor release. It is a less potent vasoconstrictor than ergotamine. As a diagnostic aid (coronary vasospasm), ergonovine causes vasoconstriction of coronary arteries.
Dược Động Học :
▧ Absorption :
Absorption is rapid and complete after oral or intramuscular administration.
▧ Metabolism :
Hepatic.
▧ Route of Elimination :
Thought to be eliminated by non-renal mechanisms (i.e. hepatic metabolism, excretion in feces)
▧ Half Life :
t1/2 α=10 minutes; t1/2 β=2 hours
Độc Tính :
The principal symptoms of overdose are convulsions and gangrene. Other symptoms include bradycardia, confusion, diarrhoea, dizziness, dyspnoea, drowsiness, fast and/or weak pulse, miosis, hypercoagulability, loss of consciousness, nausea and vomiting, numbness and coldness of the extremities, pain in the chest, peripheral vasoconstriction, respiratory depression, rise or fall in blood pressure, severe cramping of the uterus, tachycardia, tingling, and unusual thirst.
Chỉ Định :
Used to treat postpartum haemorrhage and postabortion haemorrhage in patients with uterine atony.
Tương Tác Thuốc :
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Acebutolol
Ischemia with risk of gangrene
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Almotriptan
Possible severe and prolonged vasoconstriction
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Atenolol
Ischmeia with risk of gangrene
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Bisoprolol
Ischemia with risk of gangrene
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Carvedilol
Ischemia with risk of gangrene
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Delavirdine
The antiretroviral agent may increase the ergot derivative toxicity
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Desvenlafaxine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Efalizumab
The antiretroviral agent may increase the ergot derivative
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Eletriptan
Possible severe and prolonged vasoconstriction
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Epinephrine
Possible marked increase of arterial pressure
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Erythromycin
Possible ergotism and severe ischemia with this combination
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Esmolol
Ischemia with risk of gangrene
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Frovatriptan
Possible severe and prolonged vasoconstriction
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Isosorbide Dinitrate
Possible antagonism of action
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Isosorbide Mononitrate
Possible antagonism of action
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Labetalol
Ischemia with risk of gangrene
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Metoprolol
Ischemia with risk of gangrene
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Nadolol
Ischemia with risk of gangrene
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Naratriptan
Possible severe and prolonged vasocontriction
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Nitroglycerin
Possible antagonism of action
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Oxprenolol
Ischemia with risk of gangrene
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Pentaerythritol Tetranitrate
Possible antagonism of action
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Phenylephrine
Possible marked increase of arterial pressure
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Pindolol
Ischemia with risk of gangrene
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Propranolol
Ischemia with risk of gangrene
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Telithromycin
Telithromycin may reduce clearance of Ergonovine. Consider alternate therapy or monitor for changes in the therapeutic/adverse effects of Ergonivine if Telithromycin is initiated, discontinued or dose changed.
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Timolol
Ischemia with risk of gangrene
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Tipranavir
Tipranavir, co-administered with Ritonavir, may increase the plasma concentration of Ergonovine. Concomitant therapy is contraindicated.
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Tramadol
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Tranylcypromine
Increased risk of serotonin syndrome. Use caution during concomitant therapy and monitor for symptoms of serotonin syndrome.
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Trazodone
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Trimipramine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Venlafaxine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Voriconazole
Voriconazole, a strong CYP3A4 inhibitor, may increase the serum concentration of ergonovine by decreasing its metabolism. Concomitant therapy is contraindicated.
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Zolmitriptan
Concomitant use of the serotonin 5-HT1D receptor agonist, zolmitriptan, and the ergot derivative, ergonovine, may result in additive vasoconstrictive effects. Concomitant use within 24 hours is contraindicated.
Liều Lượng & Cách Dùng :
Solution - Intramuscular - 0.2 mg/ml
Solution - Intramuscular - 0.25 mg/ml
Tablet - Oral - 0.2 mg