Pirenzepine

Pirenzepine
Clinical data
AHFS/Drugs.com	Monograph
ATC code	A02BX03 (WHO) ;
Identifiers
	IUPAC name 11-[(4-methylpiperazin-1-yl)acetyl]-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one;
CAS Number	28797-61-7 ;
PubChem CID	4848;
IUPHAR/BPS	328;
DrugBank	DB00670 ;
ChemSpider	4682 ;
UNII	3G0285N20N;
KEGG	D08389 ;
ChEBI	CHEBI:8247 ;
ChEMBL	ChEMBL9967 ;
CompTox Dashboard (EPA)	DTXSID7023487 ;
ECHA InfoCard	100.044.739
Chemical and physical data
Formula	C19H21N5O2
Molar mass	351.403 g/mol g·mol−1
3D model (JSmol)	Interactive image;
	SMILES O=C3c1ccccc1N(C(=O)CN2CCN(C)CC2)c4ncccc4N3;
	InChI InChI=1S/C19H21N5O2/c1-22-9-11-23(12-10-22)13-17(25)24-16-7-3-2-5-14(16)19(26)21-15-6-4-8-20-18(15)24/h2-8H,9-13H2,1H3,(H,21,26) ; Key:RMHMFHUVIITRHF-UHFFFAOYSA-N ;
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Pirenzepine (Gastrozepin), an M₁ selective antagonist, is used in the treatment of peptic ulcers, as it reduces gastric acid secretion and reduces muscle spasm. It is in a class of drugs known as muscarinic receptor antagonists - acetylcholine being the neurotransmitter of the parasympathetic nervous system which initiates the rest-and-digest state (as opposed to fight-or-flight), resulting in an increase in gastric motility and digestion; whereas pirenzepine would inhibit these actions and cause decreased gastric motility leading to delayed gastric emptying and constipation.[1] It has no effects on the brain and spinal cord as it cannot diffuse through the blood–brain barrier.

Pirenzepine has been investigated for use in myopia control.[2][3]

It promotes the homodimerization or oligomerisation of M₁ receptors.[4]

References

Stolerman IP (2 August 2010). Encyclopedia of Psychopharmacology. Springer. p. 811. ISBN 978-3-540-68698-9. Retrieved 26 June 2013.
Czepita D (2005). "[Fundamentals of modern treatment of myopia]". Annales Academiae Medicae Stetinensis. 51 (2): 5–9. PMID 16519089.
Walline JJ, Lindsley K, Vedula SS, Cotter SA, Mutti DO, Twelker JD (December 2011). "Interventions to slow progression of myopia in children". The Cochrane Database of Systematic Reviews (12): CD004916. doi:10.1002/14651858.CD004916.pub3. PMC 4270373. PMID 22161388.
Pediani JD, Ward RJ, Godin AG, Marsango S, Milligan G (June 2016). "Dynamic Regulation of Quaternary Organization of the M1 Muscarinic Receptor by Subtype-selective Antagonist Drugs". The Journal of Biological Chemistry. 291 (25): 13132–46. doi:10.1074/jbc.M115.712562. PMC 4933229. PMID 27080256.

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[Stolerman2010-1] Stolerman IP (2 August 2010). Encyclopedia of Psychopharmacology. Springer. p. 811. ISBN 978-3-540-68698-9. Retrieved 26 June 2013.

[2] Czepita D (2005). "[Fundamentals of modern treatment of myopia]". Annales Academiae Medicae Stetinensis. 51 (2): 5–9. PMID 16519089.

[3] Walline JJ, Lindsley K, Vedula SS, Cotter SA, Mutti DO, Twelker JD (December 2011). "Interventions to slow progression of myopia in children". The Cochrane Database of Systematic Reviews (12): CD004916. doi:10.1002/14651858.CD004916.pub3. PMC 4270373. PMID 22161388.

[pmid27080256-4] Pediani JD, Ward RJ, Godin AG, Marsango S, Milligan G (June 2016). "Dynamic Regulation of Quaternary Organization of the M1 Muscarinic Receptor by Subtype-selective Antagonist Drugs". The Journal of Biological Chemistry. 291 (25): 13132–46. doi:10.1074/jbc.M115.712562. PMC 4933229. PMID 27080256.

Drugs for peptic ulcer and GERD/GORD (A02B)
H₂ antagonists ("-tidine")	Cimetidine Famotidine Lafutidine Lavoltidine (loxtidine) Niperotidine Nizatidine Ranitidine^# Roxatidine
Prostaglandins (E)/analogues ("-prost-")	Misoprostol Enprostil
Proton-pump inhibitors ("-prazole")	Azeloprazole Dexlansoprazole Esomeprazole Ilaprazole Lansoprazole Omeprazole^# Pantoprazole Picoprazole Rabeprazole Tenatoprazole Timoprazole
Potassium-competitive acid blockers ("-prazan")	Linaprazan Revaprazan Soraprazan Vonoprazan
Others	Aceglutamide aluminum Acetoxolone Alginic acid Arbaclofen placarbil Bismuth subcitrate Carbenoxolone Cetraxate Gefarnate Lesogaberan Pirenzepine Proglumide Rebamipide Sucralfate Sulglicotide Telenzepine Teprenone Troxipide Zinc L-carnosine Zolimidine
Combinations	Bismuth subcitrate/metronidazole/tetracycline
See also: Helicobacter pylori* eradication protocols*
^#WHO-EM ^‡Withdrawn from market Clinical trials: ^†Phase III ^§Never to phase III

Tricyclics
Classes	Acridine Anthracene Dibenzazepine Dibenzocycloheptene Dibenzodiazepine Dibenzothiazepine Dibenzothiepin Dibenzoxazepine Dibenzoxepin Phenothiazine Pyridazinobenzoxazine Pyridinobenzodiazepine Thioxanthene
Antidepressants (TCAs and TeCAs)	7-OH-Amoxapine Amezepine Amineptine Amitriptyline Amitriptylinoxide Amoxapine Aptazapine Azepindole Azipramine Batelapine Butriptyline Cianopramine Ciclazindol Ciclopramine Cidoxepin Clomipramine Cotriptyline Cyanodothiepin Demexiptiline Depramine (balipramine) Desipramine (desmethylimipramine) Desmethylclomipramine Desmethyltrimipramine Dibenzepin Dimetacrine Dosulepin (dothiepin) Doxepin Enprazepine Esmirtazapine Fantridone Fluotracen Hepzidine Homopipramol Imipramine Imipraminoxide Intriptyline Iprindole Ketipramine Litracen Lofepramine Losindole Loxapine Maprotiline Mariptiline Mazindol Melitracen Metapramine Mezepine Mianserin Mirtazapine Monometacrine Naranol Nitroxazepine Norbutriptyline Nordoxepin Northiaden (nordosulepin) Nortriptyline (noramitriptyline) Noxiptiline Octriptyline Opipramol Oxaprotiline Pipofezine Pirandamine Propizepine Protriptyline Quinupramine Setiptiline (teciptiline) Spiroxepin Tandamine Tampramine Tianeptine Tienopramine Trimipramine
Antihistamines	Azatadine Bisulepin Clobenzepam Cyproheptadine Dacemazine Deptropine Desloratadine Epinastine Etymemazine Fenethazine Hydroxyethylpromethazine Isopromethazine Isothipendyl Ketotifen Latrepirdine Loratadine Mebhydrolin Mequitazine Methdilazine Olopatadine Oxomemazine Phenindamine Pimethixene Promethazine Propiomazine Rupatadine Thiazinamium
Antipsychotics	Acetophenazine Alimemazine Amoxapine Asenapine Butaclamol Butaperazine Carfenazine (carphenazine) Carpipramine Chlorpromazine Chlorprothixene Ciclindole Citatepine Clocapramine Clomacran Clorotepine Clotiapine Clozapine Cyanothepin Doclothepin Docloxythepin Erizepine Flucindole Flumezapine Fluotracen Flupentixol Fluphenazine Gevotroline Homopipramol Isofloxythepin Levomepromazine/Methotrimeprazine Loxapine Lurasidone Maroxepin Meperathiepin Mesoridazine Metiapine Metitepine Metoxepin Mosapramine Naranol Octomethothepin Olanzapine Oxyclothepin Oxyprothepin Pentiapine Peradithiepin Perathiepin Perazine Perphenazine Periciazine Pinoxepin Piperacetazine Pipotiazine Piquindone Prochlorperazine Promazine Prothipendyl Quetiapine Savoxepin/Cipazoxapine Sulforidazine Tenilapine Thiethylperazine Thiopropazate Thioridazine Thiothixene Tilozepine Traboxopine Trifluoperazine Triflupromazine Trifluthepin Zotepine Zuclopenthixol
Anticonvulsants	Carbamazepine Dizocilpine Eslicarbazepine Eslicarbazepine acetate Etazepine Licarbazepine Oxcarbazepine Oxitriptyline Rispenzepine
Others	Adosopine Aminopromazine Atiprosin Beloxepin Benzoctamine Carvedilol Cidoxepin Cyclobenzaprine Damotepine Darenzepine Elanzepine Fluradoline Methylene blue Monatepil Nuvenzepine Oxetorone Perlapine P7C3 Pinadoline Pirenzepine Pirolate Pitrazepin Pizotifen Profenamine Serazapine Siltenzepine Telenzepine Tipindole Tropatepine Zolenzepine

Pirenzepine

See also

References