Zotepine

Zotepine
	File:Zotepine2D1.svg
Clinical data
Trade names	Zoleptil
AHFS/Drugs.com	International Drug Names
Routes of; administration	Oral
ATC code	N05AX11 (WHO) ;
Legal status
Legal status	In general: ℞ (Prescription only);
Pharmacokinetic data
Bioavailability	7-13% (Oral)
Metabolism	N-desmethylation to norzotepine (30-40%)
Elimination half-life	13.7-15.9 hours, 12 hours (Norzotepine)
Excretion	17% (Urine)
Identifiers
	IUPAC name 2-[(8-chlorodibenzo(b,f)thiepin-10-yl)oxy]-N,N-dimethylethanamine;
CAS Number	26615-21-4 ;
PubChem CID	5736;
IUPHAR/BPS	103;
DrugBank	none ;
ChemSpider	5534 ;
UNII	U29O83JAZW;
KEGG	D01321 ;
ChEBI	CHEBI:32316 ;
ChEMBL	ChEMBL285802 ;
E number	{{#property:P628}}
ECHA InfoCard	{{#property:P2566}}Lua error in Module:EditAtWikidata at line 36: attempt to index field 'wikibase' (a nil value).
Chemical and physical data
Formula	C18H18ClNOS
Molar mass	331.86
3D model (JSmol)	Interactive image;
	SMILES Clc2cc1C(/OCCN(C)C)=C\c3c(Sc1cc2)cccc3;
	InChI InChI=1S/C18H18ClNOS/c1-20(2)9-10-21-16-11-13-5-3-4-6-17(13)22-18-8-7-14(19)12-15(16)18/h3-8,11-12H,9-10H2,1-2H3 ; Key:HDOZVRUNCMBHFH-UHFFFAOYSA-N ;
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Zotepine (brand names: Losizopilon (JP), Lodopin (ID, JP), Setous (JP), Zoleptil (CZ, PT, TR, UK†); where † indicates a formulation that has been discontinued) is an atypical antipsychotic drug indicated for acute and chronic schizophrenia. It has been used in Germany since 1990 (although it has been discontinued in Germany) and Japan since 1982.

Zotepine is not approved for use in the United States, United Kingdom, Australia, Canada or New Zealand.^[2]

Medical Uses

Zotepine's primary use is as a treatment for schizophrenia^[3] although clinical trials have been conducted (with positive results) into its efficacy as an antimanic agent in patients with acute bipolar mania.^[4]^[5]^[6]

Side effects

Common^[1]^[3]

Tachycardia
Hypotension
Orthostatic hypotension
Palpitations
Hyperprolactinaemia
Weight gain (produces a similar degree of weight gain to that seen with clozapine and olanzapine treatment)^[7]
Somnolence (2nd highest effect size for causing sedation out of fifteen antipsychotics compared in a recent meta-analysis)^[7]
Extrapyramidal side effects [EPSE] (2nd largest odds ratio for causing EPSE out of fifteen antipsychotics compared in a recent meta-analysis, second only to haloperidol)^[7]
Constipation
Xerostomia (dry mouth)
Blurred vision
Hypersalivation (drooling)
Mydriasis
Anxiety
Agitation
Rhinitis
Sexual dysfunction
Dyspnoea
Diarrhoea
Influenza-like symptoms
Cough
Vertigo
Confusion
Dyspepsia
Flushing dry skin
Arthralgia
Myalgia
Acne
Conjunctivitis
Thrombocythaemia

Unknown Frequency^[1]^[3]

QT interval prolongation
Hyperthermia
Hypothermia
Increased serum creatinine
Hyperglycaemia
Hypoglycaemia
Hyperlipidaemia
Thirst
Urinary incontinence

Rare^[1]^[3]

Pharmacology

The antipsychotic effect of zotepine is thought to be mediated through antagonist activity at dopamine and serotonin receptors. Zotepine has a high affinity for the D₁ and D₂ receptors. It also affects the 5-HT_2A, 5-HT_2C, 5-HT₆, and 5-HT₇ receptors.^[8] In addition, its active metabolite, norzotepine, serves as a potent norepinephrine reuptake inhibitor.^[9]

Macromolecule (Receptor or transporter protein)	K_i [nM]^[8]
SERT	151
NET	530
DAT	3621
5-HT_1A	470.5
5-HT_1B	59.5
5-HT_1D	119
5-HT_1E	700
5-HT_2A	2.7
5-HT_2C	2.6
5-HT₃	472
5-HT_5A	29
5-HT₆	6
5-HT₇	12
α_1A	7
α_1B	5
α_2A	180
α_2B	5.35
α_2C	106
M₁	18
M₂	140
M₃	73
M₄	77
M₅	260
D₁	71
D₂	25
D_2S	5.4
D_2L	11
D₃	6.4
D₄	18
D₅	248
H₁	3.21
H₂	500
H₄	1977

Dosing

The most common dosage used is 150 mg daily. It is suggested that zotepine therapy starts at 75 mg to 150 mg divided into three daily doses. Some people may need to have their dosage increased to 300 mg.^[2]

File:ロドピン50㎎ヒート.jpg

50 mg Lodopin® pills

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 ^1.6 Truven Health Analytics, Inc. DRUGDEX® System (Internet) [cited 2013 Jun 25]. Greenwood Village, CO: Thomsen Healthcare; 2013.
↑ ^2.0 ^2.1 ^2.2 "Zotepine". Martindale: The Complete Drug Reference. Royal Pharmaceutical Society of Great Britain. 16 August 2013. Retrieved 2 November 2013.
↑ ^3.0 ^3.1 ^3.2 ^3.3 British National Formulary 58. British Medical Association and Royal Pharmaceutical Society of Great Britain; 2009.
↑ Chan, HY; Jou, SH; Juang, YY; Chang, CJ; Chen, JJ; Chen, CH; Chiu, NY (April 2010). "A single-blind, comparative study of zotepine versus haloperidol in combination with a mood stabilizer for patients with moderate-to-severe mania". Psychiatry and Clinical Neurosciences. 64 (2): 162–169. doi:10.1111/j.1440-1819.2010.02066.x. PMID 20447012.
↑ Harada, T; Otsuki, S (1986). "Antimanic effect of zotepine". Clinical Therapeutics. 8 (4): 406–414. PMID 3089626.
↑ Amann, B; Sterr, A; Mergl, R; Dittmann, S; Seemüller, F; Dobmeier, M; Orth, M; Schaefer, M; Grunze, H (October 2005). "Zotepine loading in acute and severely manic patients: a pilot study". Bipolar Disorders. 7 (5): 471–476. doi:10.1111/j.1399-5618.2005.00241.x. PMID 16176441.
↑ ^7.0 ^7.1 ^7.2 Leucht, S; Cipriani, A; Spineli, L; Mavridis, D; Orey, D; Richter, F; Samara, M; Barbui, C; Engel, RR; Geddes, JR; Kissling, W; Stapf, MP; Lässig, B; Salanti, G; Davis, JM (September 2013). "Comparative efficacy and tolerability of 15 antipsychotic drugs in schizophrenia: a multiple-treatments meta-analysis". Lancet. 382 (9896): 951–962. doi:10.1016/S0140-6736(13)60733-3. PMID 23810019.
↑ ^8.0 ^8.1 National Institute of Mental Health (12 January 2011). "PDSD Ki Database". Chapel Hill (NC): University of North Carolina. Retrieved 2 November 2013.
↑ Shobo, M; Kondo, Y; Yamada, H; Mihara, T; Yamamoto, N; Katsuoka, M; Harada, K; Ni, K; Matsuoka, N (June 2010). "Norzotepine, a Major Metabolite of Zotepine, Exerts Atypical Antipsychotic-Like and Antidepressant-Like Actions through Its Potent Inhibition of Norepinephrine Reuptake" (PDF). The Journal of Pharmacology and Experimental Therapeutics. 333 (3): 772–781. doi:10.1124/jpet.110.166264. PMID 20223878.

Template:Tricyclics

[DRUGDEX-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 ^1.6 Truven Health Analytics, Inc. DRUGDEX® System (Internet) [cited 2013 Jun 25]. Greenwood Village, CO: Thomsen Healthcare; 2013.

[Martindale-2] 2.0 ^2.1 ^2.2 "Zotepine". Martindale: The Complete Drug Reference. Royal Pharmaceutical Society of Great Britain. 16 August 2013. Retrieved 2 November 2013.

[BNF_58-3] 3.0 ^3.1 ^3.2 ^3.3 British National Formulary 58. British Medical Association and Royal Pharmaceutical Society of Great Britain; 2009.

[4] Chan, HY; Jou, SH; Juang, YY; Chang, CJ; Chen, JJ; Chen, CH; Chiu, NY (April 2010). "A single-blind, comparative study of zotepine versus haloperidol in combination with a mood stabilizer for patients with moderate-to-severe mania". Psychiatry and Clinical Neurosciences. 64 (2): 162–169. doi:10.1111/j.1440-1819.2010.02066.x. PMID 20447012.

[5] Harada, T; Otsuki, S (1986). "Antimanic effect of zotepine". Clinical Therapeutics. 8 (4): 406–414. PMID 3089626.

[6] Amann, B; Sterr, A; Mergl, R; Dittmann, S; Seemüller, F; Dobmeier, M; Orth, M; Schaefer, M; Grunze, H (October 2005). "Zotepine loading in acute and severely manic patients: a pilot study". Bipolar Disorders. 7 (5): 471–476. doi:10.1111/j.1399-5618.2005.00241.x. PMID 16176441.

[Lancet-7] 7.0 ^7.1 ^7.2 Leucht, S; Cipriani, A; Spineli, L; Mavridis, D; Orey, D; Richter, F; Samara, M; Barbui, C; Engel, RR; Geddes, JR; Kissling, W; Stapf, MP; Lässig, B; Salanti, G; Davis, JM (September 2013). "Comparative efficacy and tolerability of 15 antipsychotic drugs in schizophrenia: a multiple-treatments meta-analysis". Lancet. 382 (9896): 951–962. doi:10.1016/S0140-6736(13)60733-3. PMID 23810019.

[PDSP-8] 8.0 ^8.1 National Institute of Mental Health (12 January 2011). "PDSD Ki Database". Chapel Hill (NC): University of North Carolina. Retrieved 2 November 2013.

[9] Shobo, M; Kondo, Y; Yamada, H; Mihara, T; Yamamoto, N; Katsuoka, M; Harada, K; Ni, K; Matsuoka, N (June 2010). "Norzotepine, a Major Metabolite of Zotepine, Exerts Atypical Antipsychotic-Like and Antidepressant-Like Actions through Its Potent Inhibition of Norepinephrine Reuptake" (PDF). The Journal of Pharmacology and Experimental Therapeutics. 333 (3): 772–781. doi:10.1124/jpet.110.166264. PMID 20223878.

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v t e Antipsychotics (neuroleptics) (N05A)
Typical	Benzamides: Levosulpiride • Nemonapride • Sulpiride • Sultopride • Tiapride • Veralipride; Butyrophenones: Azaperone • Benperidol • Bromperidol • Droperidol • Fluanisone • Haloperidol • Lenperone • Moperone • Pipamperone • Spiperone • Timiperone • Trifluperidol; Diphenylbutylpiperidines: Clopimozide • Fluspirilene • Penfluridol • Pimozide; Phenothiazines: Acepromazine • Acetophenazine • Butaperazine • Carphenazine • Chloracizine • Chlorproethazine • Chlorpromazine • Cyamemazine • Dixyrazine • Fluacizine • Fluphenazine • Levomepromazine/Methotrimeprazine • Mesoridazine • Perazine • Periciazine • Perphenazine • Piperacetazine • Pipotiazine • Prochlorperazine • Promazine • Promethazine • Propiomazine • Sulforidazine • Thiethylperazine • Thiopropazate • Thioproperazine • Thioridazine • Trifluoperazine • Triflupromazine; Thioxanthenes: Chlorprothixene • Clopenthixol • Flupentixol • Thiothixene • Zuclopenthixol; Tricyclics: Amoxapine • Butaclamol • Fluotracen • Loxapine • Metitepine/Methiothepin • Octoclothiepin • Trimipramine; Others: Prothipendyl
Atypical	Benzamides: Amisulpride • Remoxipride; Butyrophenones: Cinuperone • Setoperone; Benzo(iso)oxazole piperidines: Iloperidone • Ocaperidone • Paliperidone • Risperidone; Benzo(iso)thiazole piperazines: Lurasidone • Perospirone • Revospirone • Tiospirone • Ziprasidone; Diphenylbutylpiperazines: Amperozide; Phenylpiperazines: Aripiprazole • Bifeprunox • Elopiprazole • Umespirone; Tricyclics: Asenapine • Carpipramine • Clocapramine • Clotiapine • Clozapine • Fluperlapine • Gevotroline • Metitepine/Methiothepin • Mosapramine • NDMC • Olanzapine • Piquindone • Quetiapine • Tenilapine • Zotepine; Others: Blonanserin • Cariprazine • Molindone • Pimavanserin • Roxindole • Sarizotan • Sertindole • Spiramide
Others	Azacyclonol • Cannabidiol • D-Cycloserine • Lithium • Mifepristone • Oxypertine • Reserpine • Rimcazole • Secretin • Talnetant • Tetrabenazine • Vabicaserin
^#WHO-EM ^‡Withdrawn from market Clinical trials: ^†Phase III ^§Never to phase III Template:Psychology navs

v t e Adrenergic receptor modulators
α₁	Agonists: 6-FNE Amidephrine Anisodine Buspirone Cirazoline Corbadrine Desglymidodrine Dexisometheptene Dipivefrine Dopamine Droxidopa (L-DOPS) Ephedrine Epinephrine Etilefrine Etilevodopa Ethylnorepinephrine Indanidine Isometheptene L-DOPA (levodopa) L-Phenylalanine L-Tyrosine Melevodopa Metaraminol Methoxamine Methyldopa Midodrine Naphazoline Norepinephrine Octopamine (drug) Oxymetazoline Phenylephrine Phenylpropanolamine Pseudoephedrine Synephrine Tetryzoline Tiamenidine XP21279 Xylometazoline Antagonists: Abanoquil Adimolol Ajmalicine Alfuzosin Amosulalol Anisodamine Arotinolol Atiprosin Atypical antipsychotics (e.g., brexpiprazole, clozapine, olanzapine, quetiapine, risperidone) Benoxathian Buflomedil Bunazosin Carvedilol Corynanthine Dapiprazole Domesticine Doxazosin Ergolines (e.g., ergotamine, dihydroergotamine, lisuride, terguride) Etoperidone Eugenodilol Fenspiride Hydroxyzine Indoramin Ketanserin L-765,314 Labetalol mCPP Mepiprazole Metazosin Monatepil Moxisylyte Naftopidil Nantenine Neldazosin Niaprazine Nicergoline Niguldipine Pardoprunox Pelanserin Perlapine Phendioxan Phenoxybenzamine Phentolamine Phenylpiperazine antidepressants (e.g., hydroxynefazodone, nefazodone, trazodone, triazoledione) Piperoxan Prazosin Quinazosin Quinidine Ritanserin Silodosin Spiperone Talipexole Tamsulosin Terazosin Tiodazosin Tolazoline Tetracyclic antidepressants (e.g., amoxapine, maprotiline, mianserin) Tricyclic antidepressants (e.g., amitriptyline, clomipramine, doxepin, imipramine, trimipramine) Trimazosin Typical antipsychotics (e.g., chlorpromazine, fluphenazine, loxapine, thioridazine) Urapidil WB-4101 Zolertine
α₂	Agonists: (R)-3-Nitrobiphenyline 4-NEMD 6-FNE Amitraz Apraclonidine Brimonidine Cannabivarin Clonidine Corbadrine Detomidine Dexmedetomidine Dihydroergotamine Dipivefrine Dopamine Droxidopa (L-DOPS) Etilevodopa Ephedrine Ergotamine Epinephrine Etilefrine Ethylnorepinephrine Guanabenz Guanfacine Guanoxabenz L-DOPA (levodopa) L-Phenylalanine L-Tyrosine Lofexidine Medetomidine Melevodopa Methyldopa Mivazerol Naphazoline Norepinephrine Oxymetazoline Phenylpropanolamine Piperoxan Pseudoephedrine Rezatomidine Rilmenidine Romifidine Talipexole Tasipimidine Tetrahydrozoline Tiamenidine Tizanidine Tolonidine Urapidil Vatinoxan XP21279 Xylazine Xylometazoline Antagonists: 1-PP Adimolol Amesergide Aptazapine Atipamezole Atypical antipsychotics (e.g., asenapine, brexpiprazole, clozapine, lurasidone, paliperidone, quetiapine, risperidone, zotepine) Azapirones (e.g., buspirone, gepirone, ipsapirone, tandospirone) BRL-44408 Buflomedil Cirazoline Efaroxan Esmirtazapine Fenmetozole Fluparoxan Idazoxan mCPP Mianserin Mirtazapine NAN-190 Olanzapine Pardoprunox Phentolamine Phenoxybenzamine Piperoxan Piribedil Rauwolscine Rotigotine SB-269970 Setiptiline Spiroxatrine Sunepitron Tolazoline Typical antipsychotics (e.g., chlorpromazine, fluphenazine, loxapine, thioridazine) Yohimbine
β	Agonists: Abediterol Alifedrine Amibegron Arbutamine Arformoterol Arotinolol BAAM Bambuterol Befunolol Bitolterol Broxaterol Buphenine Carbuterol Carmoterol Cimaterol Clenbuterol Colterol Corbadrine Denopamine Dipivefrine Dobutamine Dopamine Dopexamine Droxidopa (L-DOPS) Ephedrine Epinephrine Etafedrine Etilefrine Etilevodopa Ethylnorepinephrine Fenoterol Formoterol Hexoprenaline Higenamine Indacaterol Isoetarine Isoprenaline Isoxsuprine L-DOPA (levodopa) L-Phenylalanine L-Tyrosine Levosalbutamol Mabuterol Melevodopa Methoxyphenamine Methyldopa Mirabegron Norepinephrine Orciprenaline Oxyfedrine PF-610355 Phenylpropanolamine Pirbuterol Prenalterol Ractopamine Procaterol Pseudoephedrine Reproterol Rimiterol Ritodrine Salbutamol Salmeterol Solabegron Terbutaline Tretoquinol Tulobuterol Vilanterol Xamoterol XP21279 Zilpaterol Zinterol Antagonists: Acebutolol Adaprolol Adimolol Afurolol Alprenolol Alprenoxime Amosulalol Ancarolol Arnolol Arotinolol Atenolol Befunolol Betaxolol Bevantolol Bisoprolol Bopindolol Bornaprolol Brefonalol Bucindolol Bucumolol Bufetolol Bufuralol Bunitrolol Bunolol Bupranolol Butaxamine Butidrine Butofilolol Capsinolol Carazolol Carpindolol Carteolol Carvedilol Celiprolol Cetamolol Cicloprolol Cinamolol Cloranolol Cyanopindolol Dalbraminol Dexpropranolol Diacetolol Dichloroisoprenaline Dihydroalprenolol Dilevalol Diprafenone Draquinolol Ecastolol Epanolol Ericolol Ersentilide Esatenolol Esprolol Eugenodilol Exaprolol Falintolol Flestolol Flusoxolol Hydroxycarteolol Hydroxytertatolol ICI-118,551 Idropranolol Indenolol Indopanolol Iodocyanopindolol Iprocrolol Isoxaprolol Isamoltane Labetalol Landiolol Levobetaxolol Levobunolol Levomoprolol Medroxalol Mepindolol Metipranolol Metoprolol Moprolol Nadolol Nadoxolol Nebivolol Nifenalol Nipradilol Oxprenolol Pacrinolol Pafenolol Pamatolol Pargolol Penbutolol Pindolol Practolol Primidolol Procinolol Pronethalol Propafenone Propranolol Ridazolol Ronactolol Soquinolol Sotalol Spirendolol SR 59230A Sulfinalol Talinolol Tazolol Tertatolol Tienoxolol Tilisolol Timolol Tiprenolol Tolamolol Toliprolol Xibenolol Xipranolol

v t e Histamine receptor modulators
H₁	Agonists: 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists: First-generation: 4-Methyldiphenhydramine Alimemazine Antazoline Azatadine Bamipine Benzatropine (benztropine) Bepotastine Bromazine Brompheniramine Buclizine Captodiame Carbinoxamine Chlorcyclizine Chloropyramine Chlorothen Chlorphenamine Chlorphenoxamine Cinnarizine Clemastine Clobenzepam Clocinizine Cloperastine Cyclizine Cyproheptadine Dacemazine Decloxizine Deptropine Dexbrompheniramine Dexchlorpheniramine Dimenhydrinate Dimetindene Diphenhydramine Diphenylpyraline Doxylamine Embramine Etodroxizine Etybenzatropine (ethylbenztropine) Etymemazine Fenethazine Flunarizine Histapyrrodine Homochlorcyclizine Hydroxyethylpromethazine Hydroxyzine Isopromethazine Isothipendyl Meclozine Medrylamine Mepyramine (pyrilamine) Mequitazine Methafurylene Methapyrilene Methdilazine Moxastine Orphenadrine Oxatomide Oxomemazine Perlapine Phenindamine Pheniramine Phenyltoloxamine Pimethixene Piperoxan Pipoxizine Promethazine Propiomazine Pyrrobutamine Talastine Thenalidine Thenyldiamine Thiazinamium Thonzylamine Tolpropamine Tripelennamine Triprolidine Second/third-generation: Acrivastine Alinastine Astemizole Azelastine Bamirastine Barmastine Bepiastine Bepotastine Bilastine Cabastinen Carebastine Cetirizine Clemastine Clemizole Clobenztropine Desloratadine Dorastine Ebastine Efletirizine Emedastine Epinastine Fexofenadine Flezelastine Ketotifen Latrepirdine Levocabastine Levocetirizine Linetastine Loratadine Mapinastine Mebhydrolin Mizolastine Moxastine Noberastine Octastine Olopatadine Perastine Pibaxizine Piclopastine Quifenadine (phencarol) Rocastine Rupatadine Setastine Sequifenadine (bicarphen) Talastine Temelastine Terfenadine Vapitadine Zepastine Others: Atypical antipsychotics (e.g., aripiprazole, asenapine, brexpiprazole, clozapine, iloperidone, olanzapine, paliperidone, quetiapine, risperidone, RP-5063, ziprasidone, zotepine) Phenylpiperazine antidepressants (e.g., hydroxynefazodone, nefazodone, trazodone, triazoledione) Tetracyclic antidepressants (e.g., amoxapine, loxapine, maprotiline, mianserin, mirtazapine, oxaprotiline) Tricyclic antidepressants (e.g., amitriptyline, butriptyline, clomipramine, desipramine, dosulepin (dothiepin), doxepin, imipramine, iprindole, lofepramine, nortriptyline, protriptyline, trimipramine) Typical antipsychotics (e.g., chlorpromazine, flupenthixol, fluphenazine, loxapine, perphenazine, prochlorperazine, thioridazine, thiothixene) Unknown/unsorted: Azanator Belarizine Elbanizine Flotrenizine GSK1004723 Napactadine Tagorizine Trelnarizine Trenizine
H₂	Agonists: Amthamine Betazole Dimaprit Histamine HTMT Impromidine L-Histidine UR-AK49 Antagonists: Bisfentidine Burimamide Cimetidine Dalcotidine Donetidine Ebrotidine Etintidine Famotidine Isolamtidine Lafutidine Lamtidine Lavoltidine (loxtidine) Lupitidine Metiamide Mifentidine Niperotidine Nizatidine Osutidine Oxmetidine Pibutidine Quisultazine (quisultidine) Ramixotidine Ranitidine Roxatidine Sufotidine Tiotidine Tuvatidine Venritidine Xaltidine Zolantidine
H₃	Agonists: α-Methylhistamine Cipralisant Histamine Imetit Immepip Immethridine L-Histidine Methimepip Proxyfan Antagonists: A-349,821 A-423,579 ABT-239 ABT-652 AZD5213 Bavisant Betahistine Burimamide Ciproxifan Clobenpropit Conessine Enerisant GSK-189,254 Impentamine Iodophenpropit Irdabisant JNJ-5207852 MK-0249 NNC 38-1049 PF-03654746 Pitolisant SCH-79687 Thioperamide VUF-5681
H₄	Agonists: 4-Methylhistamine α-Methylhistamine Histamine L-Histidine OUP-16 VUF-8430 Antagonists: JNJ-7777120 Mianserin Seliforant Thioperamide Toreforant VUF-6002
See also: Receptor/signaling modulators • Monoamine metabolism modulators • Monoamine reuptake inhibitors