Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
318.073161265
InChI
InChI=1S/C16H19BrN2/c1-19(2)12-10-15(16-5-3-4-11-18-16)13-6-8-14(17)9-7-13/h3-9,11,15H,10,12H2,1-2H3/t15-/m0/s1
InChI Key
InChIKey=ZDIGNSYAACHWNL-HNNXBMFYSA-N
IUPAC Name
[(3S)-3-(4-bromophenyl)-3-(pyridin-2-yl)propyl]dimethylamine
Traditional IUPAC Name
dexbrompheniramine
SMILES
CN(C)CC[C@@H](C1=CC=C(Br)C=C1)C1=CC=CC=N1
pKa (Strongest Basic)
9.48
Refractivity
83.67 m3·mol-1
Dược Lực Học :
In allergic reactions an allergen interacts with and cross-links surface IgE antibodies on mast cells and basophils. Once the mast cell-antibody-antigen complex is formed, a complex series of events occurs that eventually leads to cell-degranulation and the release of histamine (and other chemical mediators) from the mast cell or basophil. Once released, histamine can react with local or widespread tissues through histamine receptors. Histamine, acting on H1-receptors, produces pruritis, vasodilatation, hypotension, flushing, headache, tachycardia, and bronchoconstriction. Histamine also increases vascular permeability and potentiates pain. Dexbrompheniramine is a histamine H1 antagonist (or more correctly, an inverse histamine agonist) of the alkylamine class. It provides effective, temporary relief of sneezing, watery and itchy eyes, and runny nose due to hay fever and other upper respiratory allergies.
Cơ Chế Tác Dụng :
Dexbrompheniramine maleate is an antihistamine used to treat allergic conditions such as hay fever or urticaria.
Dexbrompheniramine competitively binds to the histamine H1-receptor. It competes with histamine for the normal H1-receptor sites on effector cells of the gastrointestinal tract, blood vessels and respiratory tract. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine.
Dược Động Học :
▧ Absorption :
Antihistamines are well absorbed from the gastrointestinal tract after oral administration.
▧ Metabolism :
Hepatic (cytochrome P-450 system), some renal.
▧ Half Life :
25 hours
Độc Tính :
Signs of an overdose include fast or irregular heartbeat, mental or mood changes, tightness in the chest, and unusual tiredness or weakness.
Chỉ Định :
For treatment and relief of symptoms of allergies, hay fever, and colds
Tương Tác Thuốc :
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Donepezil
Possible antagonism of action
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Galantamine
Possible antagonism of action
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Tacrine
The therapeutic effects of the central acetylcholinesterase inhibitor, Tacrine, and/or the anticholinergic, Dexbrompheniramine, may be reduced due to antagonism. The interaction may be beneficial when the anticholinergic action is a side effect. Monitor for decreased efficacy of both agents.
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Trimethobenzamide
Trimethobenzamide and Dexbrompheniramine, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Monitor for enhanced anticholinergic effects.
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Triprolidine
Triprolidine and Dexbrompheniramine, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Additive CNS depressant effects may also occur. Monitor for enhanced anticholinergic and CNS depressant effects.
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Trospium
Trospium and Dexbrompheniramine, two anticholinergics, may cause additive anticholinergic effects and enhanced adverse/toxic effects. Monitor for enhanced anticholinergic effects.
Dữ Kiện Thương Mại
Giá thị trường
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Giá bán buôn : USD >0.82
Đơn vị tính : tablet