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药品详细

Thioridazine(硫利达嗪)

化学结构式图
中文名
硫利达嗪
英文名
Thioridazine
分子式
C21H26N2S2
化学名
10-[2-(1-methylpiperidin-2-yl)ethyl]-2-(methylsulfanyl)-10H-phenothiazine
分子量
Average: 370.575
Monoisotopic: 370.153740222
CAS号
50-52-2
ATC分类
N05A 未知
药物类型
small molecule
阶段
approved
商品名
同义名
基本介绍

A phenothiazine antipsychotic used in the management of psychoses, including schizophrenia, and in the control of severely disturbed or agitated behavior. It has little antiemetic activity. Thioridazine has a higher incidence of antimuscarinic effects, but a lower incidence of extrapyramidal symptoms, than chlorpromazine. (From Martindale, The Extra Pharmacopoeia, 30th ed, p618)

生产厂家
  • Actavis mid atlantic llc
  • Alpharma us pharmaceuticals division
  • Hi tech pharmacal co inc
  • Ivax pharmaceuticals inc
  • Mutual pharmaceutical co inc
  • Mylan pharmaceuticals inc
  • Novartis pharmaceuticals corp
  • Par pharmaceutical inc
  • Pharmaceutical assoc inc div beach products
  • Roxane laboratories inc
  • Sandoz inc
  • Superpharm corp
  • Teva pharmaceuticals usa
  • Teva pharmaceuticals usa inc
  • Watson laboratories inc
  • West ward pharmaceutical corp
  • Wockhardt eu operations (swiss) ag
封装厂家
参考
Synthesis Reference Not Available
General Reference Not Available
剂型
规格
化合物类型
Type small molecule
Classes
  • Phenothiazines
Substructures
  • Ethers
  • Phenothiazines
  • Aliphatic and Aryl Amines
  • Thiazines
  • Benzene and Derivatives
  • Heterocyclic compounds
  • Aromatic compounds
  • Anilines
  • Piperidines
适应症
药理
Indication For the treatment of schizophrenia and generalized anxiety disorder.
Pharmacodynamics Thioridazine is a trifluoro-methyl phenothiazine derivative intended for the management of schizophrenia and other psychotic disorders. Thioridazine has not been shown effective in the management of behaviorial complications in patients with mental retardation.
Mechanism of action Thioridazine blocks postsynaptic mesolimbic dopaminergic D1 and D2 receptors in the brain; blocks alpha-adrenergic effect, depresses the release of hypothalamic and hypophyseal hormones and is believed to depress the reticular activating system thus affecting basal metabolism, body temperature, wakefulness, vasomotor tone, and emesis.
Absorption 60%
Volume of distribution Not Available
Protein binding 95%
Metabolism
Hepatic
Route of elimination Not Available
Half life 21-25 hours
Clearance Not Available
Toxicity LD50=956-1034 mg/kg (Orally in rats); Agitation, blurred vision, coma, confusion, constipation, difficulty breathing, dilated or constricted pupils, diminished flow of urine, dry mouth, dry skin, excessively high or low body temperature, extremely low blood pressure, fluid in the lungs, heart abnormalities, inability to urinate, intestinal blockage, nasal congestion, restlessness, sedation, seizures, shock
Affected organisms
  • Humans and other mammals
Pathways Not Available
理化性质
Properties
State solid
Experimental Properties
Property Value Source
melting point 73 °C PhysProp
boiling point 230 °C at 2.00E-02 mm Hg PhysProp
water solubility 0.0336 mg/L Not Available
logP 5.90 HANSCH,C ET AL. (1995)
pKa 9.5 EL TAYAR,N ET AL. (1985)
Predicted Properties
Property Value Source
water solubility 8.55e-04 g/l ALOGPS
logP 5.93 ALOGPS
logP 5.47 ChemAxon
logS -5.6 ALOGPS
pKa (strongest basic) 8.93 ChemAxon
physiological charge 1 ChemAxon
hydrogen acceptor count 2 ChemAxon
hydrogen donor count 0 ChemAxon
polar surface area 6.48 ChemAxon
rotatable bond count 4 ChemAxon
refractivity 113.52 ChemAxon
polarizability 43.26 ChemAxon
药物相互作用
Drug Interaction
Abiraterone Abiraterone increases levels by affecting CYP2D6 metabolism. Interaction is significant so monitor closely.
Amiodarone Increased risk of cardiotoxicity and arrhythmias
Amitriptyline Increased risk of cardiotoxicity and arrhythmias
Amphetamine Decreased anorexic effect, may increase psychotic symptoms
Artemether Additive QTc-prolongation may occur. Concomitant therapy is contraindicated.
Asenapine Thioridazine is a CYP2D6 substrate in which concomitant therapy with asenapine will increase serum levels of thioridazine. Consider alternative therapy.
Astemizole Increased risk of cardiotoxicity and arrhythmias
Atomoxetine The CYP2D6 inhibitor could increase the effect and toxicity of atomoxetine
Benzphetamine Antipsychotics may diminish the stimulatory effect of Amphetamines. Monitor effectiveness of amphetamine therapy when altering concurrent antipsychotic therapy as antipsychotic agents may impair the stimulatory effect of amphetamines.
Bretylium Increased risk of cardiotoxicity and arrhythmias
Bromocriptine The phenothiazine decreases the effect of bromocriptine
Bupropion Bupropion may increase the effect and toxicity of thioridazine.
Chloroquine Increased risk of cardiotoxicity and arrhythmias
Chlorpromazine Increased risk of cardiotoxicity and arrhythmias
Cisapride Increased risk of cardiotoxicity and arrhythmias
Crizotinib Concurrent use with drugs that prolong QTc interval is contraindicated.
Dexfenfluramine Decreased anorexic effect, may increase psychotic symptoms
Dextroamphetamine Decreased anorexic effect, may increase psychotic symptoms
Diethylpropion Decreased anorexic effect, may increase psychotic symptoms
Diltiazem Increased risk of cardiotoxicity and arrhythmias
Diphenhydramine Increased risk of cardiotoxicity and arrhythmias
Disopyramide Increased risk of cardiotoxicity and arrhythmias
Dofetilide Increased risk of cardiotoxicity and arrhythmias
Donepezil Possible antagonism of action
Doxepin Increased risk of cardiotoxicity and arrhythmias
Duloxetine Increased risk of cardiotoxicity and arrhythmias
Erythromycin Increased risk of cardiotoxicity and arrhythmias
Fenfluramine Decreased anorexic effect, may increase psychotic symptoms
Flecainide Increased risk of cardiotoxicity and arrhythmias
Fluoxetine Increased risk of cardiotoxicity and arrhythmias
Fluvoxamine Increased risk of cardiotoxicity and arrhythmias
Galantamine Possible antagonism of action
Gatifloxacin Increased risk of cardiotoxicity and arrhythmias
Grepafloxacin Increased risk of cardiotoxicity and arrhythmias
Guanethidine Thioridazine may decrease the effect of guanethidine.
Halofantrine Increased risk of cardiotoxicity and arrhythmias
Haloperidol Increased risk of cardiotoxicity and arrhythmias
Imipramine Increased risk of cardiotoxicity and arrhythmias
Josamycin Increased risk of cardiotoxicity and arrhythmias
Levofloxacin Increased risk of cardiotoxicity and arrhythmias
Lorcaserin Avoid combination.The combination is likely to reduce the metabolism of Thioridazine.
Lumefantrine Additive QTc-prolongation may occur. Concomitant therapy should be avoided.
Maprotiline Increased risk of cardiotoxicity and arrhythmias
Mazindol Decreased anorexic effect, may increase psychotic symptoms
Methamphetamine Decreased anorexic effect, may increase psychotic symptoms
Metrizamide Increased risk of convulsions
Mirabegron Mirabegron is a moderate CYP2D6 inhibitor and may cause an increase in exposure of CYP2D6 substrates. Monitor concomitant therapy closely.
Paroxetine Increased risk of cardiotoxicity and arrhythmias
Penicillin G Increased risk of cardiotoxicity and arrhythmias
Pentamidine Increased risk of cardiotoxicity and arrhythmias
Phendimetrazine Decreased anorexic effect, may increase psychotic symptoms
Phenmetrazine Decreased anorexic effect, may increase psychotic symptoms
Phentermine Decreased anorexic effect, may increase psychotic symptoms
Phenylpropanolamine Decreased anorexic effect, may increase psychotic symptoms
Pimozide Increased risk of cardiotoxicity and arrhythmias
Pindolol Increased risk of cardiotoxicity and arrhythmias
Procainamide Increased risk of cardiotoxicity and arrhythmias
Propafenone Increased risk of cardiotoxicity and arrhythmias.
Propranolol Increased risk of cardiotoxicity and arrhythmias
Quinidine Increased risk of cardiotoxicity and arrhythmias
Quinidine barbiturate Increased risk of cardiotoxicity and arrhythmias
Quinine Increased risk of cardiotoxicity and arrhythmias
Ranolazine Possible additive effect on QT prolongation
Rivastigmine Possible antagonism of action
Sertindole Increased risk of cardiotoxicity and arrhythmias
Sotalol Increased risk of cardiotoxicity and arrhythmias
Sparfloxacin Increased risk of cardiotoxicity and arrhythmias
Spiramycin Increased risk of cardiotoxicity and arrhythmias
Tacrine The therapeutic effects of the central acetylcholinesterase inhibitor (AChEI), Tacrine, and/or the anticholinergic/antipsychotic, Thioridazine, may be reduced due to antagonism. This interaction may be beneficial when the anticholinergic action is a side effect. AChEIs may also augment the central neurotoxic effect of antipsychotics. Monitor for extrapyramidal symptoms and decreased efficacy of both agents.
Tacrolimus May cause additive QTc-prolonging effects. Concomitant therapy is contraindicated.
Tamoxifen Thioridazine may decrease the therapeutic effect of Tamoxifen by decreasing the production of active metabolites. Consider alternate therapy.
Tamsulosin Thioridazine, a CYP2D6 inhibitor, may decrease the metabolism and clearance of Tamsulosin, a CYP2D6 substrate. Monitor for changes in therapeutic/adverse effects of Tamsulosin if Thioridazine is initiated, discontinued, or dose changed.
Telithromycin Telithromycin may increase the QTc-prolonging effect of Thioridazine. Concomitant therapy should be avoided.
Terbinafine Terbinafine may increase serum concentrations of Thioridazine. Concomitant therapy is contraindicated.
Terfenadine Increased risk of cardiotoxicity and arrhythmias
Tetrabenazine May cause dopamine deficiency. Monitor for Tetrabenazine adverse effects.
Thiothixene May cause additive QTc-prolonging effects. Concomitant therapy is contraindicated.
Ticlopidine Ticlopidine may decrease the metabolism of thioridazine. Concomitant therapy is contraindicated.
Toremifene May cause additive QTc-prolonging effects. Concomitant therapy is contraindicated.
Tramadol Thioridazine may decrease the effect of Tramadol by decreasing active metabolite production.
Tranylcypromine Tranylcypromine, a CYP2D6 inhibitor, may decrease the metabolism and clearance of Thioridazine. Concomitant therapy is contraindicated.
Trimethobenzamide Trimethobenzamide and Thioridazine, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Monitor for enhanced anticholinergic effects.
Trimipramine May cause additive QTc-prolonging effects. Concomitant therapy is contraindicated.
Triprolidine The antihistamine, Triprolidine, may increase the arrhythmogenic effect of the phenothiazine, Thioridazine. Monitor for symptoms of ventricular arrhythmias. Additive anticholinergic and CNS depressant effects may also occur. Monitor for enhanced anticholinergic and CNS depressant effects.
Trospium Trospium and Thioridazine, two anticholinergics, may cause additive anticholinergic effects and enhanced adverse/toxic effects. Monitor for enhanced anticholinergic effects.
Vilazodone Thioridazine prescribing information contraindicates the concomitant use of agents that inhibit CYP2D6 isoenzymes. Avoid combination.
Voriconazole Additive QTc prolongation may occur. Concomitant use is contraindicated.
Vorinostat Additive QTc prolongation may occur. Consider alternate therapy or monitor for QTc prolongation as this can lead to Torsade de Pointes (TdP).
Ziprasidone Additive QTc-prolonging effects may increase the risk of severe arrhythmias. Concomitant therapy should be avoided.
Zuclopenthixol Additive QTc-prolonging effects increases risk of cardiac arrhythmias. Concomitant therapy is contraindicated.
食物相互作用
Not Available

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