87233-62-3CCOCCn1c(N2CCCN(C)CC2)nc2ccccc21.O=C(O)/C=C/C(=O)O.O=C(O)/C=C/C(=O)OFWLKKPKZQYVAFR-LVEZLNDCSA-NEmedastine Difumarate is the difumarate salt form of emedastine, a second generation, selective histamine H1 receptor antagonist with anti-allergic activity. Emedastine reversibly and competitively blocks histamine by binding to H1 receptors, thus blocking its downstream activity. As a result, this agent interferes with mediator release from mast cells either by inhibiting calcium ion influx across mast cell/basophil plasma membrane or by inhibiting intracellular calcium ion release within the cells. In addition, emedastine may also inhibit the late-phase allergic reaction mediated through leukotrienes or prostaglandins, or by producing an anti-platelet activating factor effect. Upon ocular administration, emedastine causes a dose-dependent inhibition of histamine-stimulated vascular permeability in the conjunctiva. Emedastine does not affect adrenergic, dopamine, or serotonin receptors.
87233-62-3DTXSID2046911CHEMBL2103739FDA approved drugs -> Active ingredient
EMA approved medicines: Human medicine
FDA approved drugs -> Active ingredient
White or yellowish powder
안전 정보는 참고용이며, 공급업체의 물질안전보건자료(SDS), 관련 법규 및 전문가 평가를 대체하지 않습니다.
Warning
H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 2 reports by companies from 1 notifications to the ECHA C&L Inventory.
Drugs that selectively bind to but do not activate histamine H1 receptors, thereby blocking the actions of endogenous histamine. Included here are the classical antihistaminics that antagonize or prevent the action of histamine mainly in immediate hypersensitivity. They act in the bronchi, capillaries, and some other smooth muscles, and are used to prevent or allay motion sickness, seasonal rhinitis, and allergic dermatitis and to induce somnolence. The effects of blocking central nervous system H1 receptors are not as well understood.
Agents that are used to treat allergic reactions. Most of these drugs act by preventing the release of inflammatory mediators or inhibiting the actions of released mediators on their target cells. (From AMA Drug Evaluations Annual, 1994, p475)
개요Emedastine difumarate, a potent H1-receptor antagonist, was launched in Japan for the treatment of allergic rhinitis and urticaria. Emedastine exerts its antiallergic effect via inhibition of substance P-induced histamine release. It has been demonstrated both in vitro and in vivo that this effect is mediated by the inhibition of Ca2+release from extracellular stores and of Ca2+ influx into mast cells. In a clinical trial with bronchial asthma, emedastine improved asthmatic symptoms in 55.3% of patients.
용도Antihistaminic, H1-receptor; asthma prophylactic; anti-allergic.
정의ChEBI: The fumaric acid salt of emedastine containing two molecules of fumaric acid for each molecule of emedastine. A relatively selective histamine H1 antagonist, it is used for allergic rhinitis, urticaria, and pruritic skin disorders, and in eyedrops for the symptomatic relief of allergic conjuntivitis.
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