Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
298.150369404
InChI
InChI=1S/C18H22N2S/c1-14(12-19(2)3)13-20-15-8-4-6-10-17(15)21-18-11-7-5-9-16(18)20/h4-11,14H,12-13H2,1-3H3
InChI Key
InChIKey=ZZHLYYDVIOPZBE-UHFFFAOYSA-N
IUPAC Name
dimethyl[2-methyl-3-(10H-phenothiazin-10-yl)propyl]amine
Traditional IUPAC Name
trimeprazine
SMILES
CC(CN(C)C)CN1C2=CC=CC=C2SC2=CC=CC=C12
Độ sôi
150-175 °C at 3.00E-01 mm Hg
pKa (Strongest Basic)
9.42
Refractivity
93.37 m3·mol-1
Dược Lực Học :
Trimeprazine (also known as Alimemazine) is a tricyclic antihistamine, similar in structure to the phenothiazine antipsychotics, but differing in the ring-substitution and chain characteristics. Trimeprazine is in the same class of drugs as chlorpromazine (Thorazine) and trifluoperazine (Stelazine); however, unlike the other drugs in this class, trimeprazine is not used clinically as an anti-psychotic. It acts as an anti-histamine, a sedative, and an anti-emetic (anti-nausea). Trimeprazine is used principally as an anti-emetic, to prevent motion sickness or as an anti-histamine in combination with other medications in cough and cold preparations. Tricyclic antihistamines are also structurally-related to the tricyclic antidepressants, explaining the antihistaminergic adverse effects of these two drug classes and also the poor tolerability profile of tricyclic H1-antihistamines.
Cơ Chế Tác Dụng :
A phenothiazine derivative that is used as an antipruritic. [PubChem]
Trimeprazine competes with free histamine for binding at HA-receptor sites. This antagonizes the effects of histamine on HA-receptors, leading to a reduction of the negative symptoms brought on by histamine HA-receptor binding.
Dược Động Học :
▧ Absorption :
Well absorbed in the digestive tract.
▧ Metabolism :
Hepatic
Độc Tính :
Symptoms of overdose clumsiness or unsteadiness, seizures, severe drowsiness, flushing or redness of face, hallucinations, muscle spasms (especially of neck and back), restlessness, shortness of breath, shuffling walk, tic-like (jerky) movements of head and face, trembling and shaking of hands, and insomnia.
Chỉ Định :
Used to prevent and relieve allergic conditions which cause pruritus (itching) and urticaria (some allergic skin reactions).
Tương Tác Thuốc :
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Bromocriptine
The phenothiazine decreases the effect of bromocriptine
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Cisapride
Increased risk of cardiotoxicity and arrhythmias
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Dexfenfluramine
Decreased anorexic effect, may increase psychotic symptoms
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Diethylpropion
Decreased anorexic effect, may increase psychotic symptoms
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Donepezil
Possible antagonism of action
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Fenfluramine
Decreased anorexic effect, may increase psychotic symptoms
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Galantamine
Possible antagonism of action
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Guanethidine
Trimeprazine may decrease the effect of guanethidine.
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Mazindol
Decreased anorexic effect, may increase psychotic symptoms
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Phentermine
Decreased anorexic effect, may increase psychotic symptoms
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Phenylpropanolamine
Decreased anorexic effect, may increase psychotic symptoms
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Pramlintide
The anticholinergic effects of Trimeprazine may be enhanced by Pramlintide. Additive effects of reduced GI motility may occur. Pramlintide slows gastic emptying and should not be used with drugs that alter GI motility (e.g. anticholinergics). Consider alternative treatments or use caution during concomitant therapy.
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Tacrine
The therapeutic effects of the central acetylcholinesterase inhibitor, Tacrine, and/or the anticholinergic, Trimeprazine, 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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Terfenadine
Increased risk of cardiotoxicity and arrhythmias
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Trimethobenzamide
Trimethobenzamide and Trimeprazine, 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 Trimeprazine, 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 Trimeprazine, two anticholinergics, may cause additive anticholinergic effects and enhanced adverse/toxic effects. Monitor for enhanced anticholinergic effects.
Liều Lượng & Cách Dùng :
Tablet - Oral
Dữ Kiện Thương Mại
Giá thị trường
-
Giá bán buôn : USD >0.3
Đơn vị tính : tablet
-
Giá bán buôn : USD >0.37
Đơn vị tính : tablet
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-
Sản phẩm biệt dược : Vallergan