Alcuronium chloride

From Self-sufficiency

Alcuronium chloride
Systematic (IUPAC) name
File:Alcuroniumchlorid.svg
File:Alcuronium3d.png
4,4'-Didemethyl-4,4'-di-propenyltoxiferin-1-dichloride
Pharmacokinetic data
Metabolism	not metabolized
Excretion	70-90% unchanged in urine 1.3ml/kg/min t1/2 2- 4 hours

Identifiers
CAS Number	23214-96-2
ATC code	M03AA01 (WHO)
PubChem	CID 5311001
IUPHAR/BPS	341
ChemSpider	20118193
Chemical data
Formula	C₄₄H₅₀N₄O₂^{Script error: No such module "String".}
Molar mass	666.894 g/mol[[Script error: No such module "String".]]
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Alcuronium is a peripherally acting muscle relaxant in the curare alkaloid family. It is a semi-synthetic substance derived from toxiferine.

Effects

Cardiovascular system - histamine release and blockage of the sympathetic ganglia including adrenal medulla could cause Hypotension
Respiratory - apnea due to phrenic blockage but bronchoconstriction can occur from the histamine release
Central nervous system - no effect on intraoccular pressure
Autonomic ganglion blockade can cause decrease in gut motility

Special points

Duration of action prolonger in states of low potassium, calcium and protein, also in states of high magnesium and acidosis.
Pharmaceutically incompatible with thiopentone
Infusion can cause fixed dilated pupils

References

Zahn K, Eckstein N, Tränkle C, Sadée W, Mohr K (2002). "Allosteric modulation of muscarinic receptor signaling: alcuronium-induced conversion of pilocarpine from an agonist into an antagonist". J Pharmacol Exp Ther. 301 (2): 720–8. doi:10.1124/jpet.301.2.720. PMID 11961078.

Maass A, Mohr K (1996). "Opposite effects of alcuronium on agonist and on antagonist binding to muscarinic receptors". Eur J Pharmacol. 305 (1-3): 231–4. doi:10.1016/0014-2999(96)00240-3. PMID 8813558.

Jakubík J, Tucek S (1994). "Protection by alcuronium of muscarinic receptors against chemical inactivation and location of the allosteric binding site for alcuronium". J Neurochem. 63 (5): 1932–40. doi:10.1046/j.1471-4159.1994.63051932.x. PMID 7931349.

Proska J, Tucek S (1994). "Mechanisms of steric and cooperative actions of alcuronium on cardiac muscarinic acetylcholine receptors". Mol Pharmacol. 45 (4): 709–17. PMID 8183250.

Skeletal muscle relaxants (M03)

Peripherally acting
(primarily antinicotinic,
Neuromuscular junction block)

Non-depolarizing

Curare alkaloids	Alcuronium · Dimethyltubocurarine · Tubocurarine · C-Toxiferine I
Tertiary amines / Non-curare alkaloids	Dihydro-β-erythroidine · Thesine · Malouetine
Mono-, Bis- and Tris-quaternary ammonium agents	ultra-short duration: Gantacurium short duration: Mivacurium · Chandonium intermediate duration: Atracurium · Cisatracurium · Fazadinium · Rocuronium · Vecuronium · Dipyrandium · N,N'-Dimethylconessine · Stercuronium · Dacuronium · Mytolon long duration: Doxacurium · Dimethyltubocurarine · Pancuronium · Pipecuronium · Laudexium · Gallamine · Benzoquinonium · Decaethonium · Succinyl-bis-β-phenylcholine · Anatruxonium · Truxilonium · Cyclobutonium · Dipyronium · Pyrocurinum · Tercuronium · Diadonium unsorted: Hexafluronium (Hexafluorenium) · Myanesin · Cyclobutonium · Mebutanium · Amidonium · Nubitanium · Quilidium · Decadonium

Depolarizing

Choline derivatives: Suxamethonium (Succinylcholine) · Succinyl-β-phenylcholine · Suxethonium Polyalkylene derivatives: Decamethonium · Pentamethonium · Hexamethonium · Carbolonium · Dioxonium

ACh release inhibitors

Clostridium botulinum toxin · Atraxotoxin · β-Bungarotoxin · Black widow spider venom

Centrally acting

Carbamic acid esters	Carisoprodol · Febarbamate · Meprobamate · Methocarbamol · Phenprobamate · Styramate · Tybamate
Benzodiazepines	Bentazepam · Diazepam · Lorazepam · Nitrazepam · Tetrazepam
Anticholinergics (Antimuscarinics)	Cyclobenzaprine · Orphenadrine
Other	Baclofen · Chlormezanone · Chlorphenesin • Chlorzoxazone · Donepezil · Eperisone · Flopropione · Mephenesin · Mephenoxalone · Metaxalone · Phenyramidol · Pridinol · Promoxolane · Quinine · Thiocolchicoside · Tizanidine · Tolperisone · Trazadone

Directly acting

Dantrolene

M: MUS, DF+DRCT

anat (h/n, u, t/d, a/p, l)/phys/hist

noco(m, s, c)/cong(d)/tumr, sysi/epon, injr

proc, drug (M1A/3)

Cholinergics

Receptor ligands

mAChR

Agonists: 77-LH-28-1 • AC-42 • AC-260,584 • Aceclidine • Acetylcholine • AF30 • AF150(S) • AF267B • AFDX-384 • Alvameline • AQRA-741 • Arecoline • Bethanechol • Butyrylcholine • Carbachol • CDD-0034 • CDD-0078 • CDD-0097 • CDD-0098 • CDD-0102 • Cevimeline • cis-Dioxolane • Ethoxysebacylcholine • LY-593,039 • L-689,660 • LY-2,033,298 • McNA343 • Methacholine • Milameline • Muscarine • NGX-267 • Ocvimeline • Oxotremorine • PD-151,832 • Pilocarpine • RS86 • Sabcomeline • SDZ 210-086 • Sebacylcholine • Suberylcholine • Talsaclidine • Tazomeline • Thiopilocarpine • Vedaclidine • VU-0029767 • VU-0090157 • VU-0152099 • VU-0152100 • VU-0238429 • WAY-132,983 • Xanomeline • YM-796
Antagonists: 3-Quinuclidinyl Benzilate • 4-DAMP • Aclidinium Bromide • Anisodamine • Anisodine • Atropine • Atropine Methonitrate • Benactyzine • Benzatropine (Benztropine) • Benzydamine • BIBN 99 • Biperiden • Bornaprine • CAR-226,086 • CAR-301,060 • CAR-302,196 • CAR-302,282 • CAR-302,368 • CAR-302,537 • CAR-302,668 • CS-27349 • Cyclobenzaprine • Cyclopentolate • Darifenacin • DAU-5884 • Dimethindene • Dexetimide • DIBD • Dicyclomine (Dicycloverine) • Ditran • EA-3167 • EA-3443 • EA-3580 • EA-3834 • Elemicin • Etanautine • Etybenzatropine (Ethylbenztropine) • Flavoxate • Himbacine • HL-031,120 • Ipratropium • J-104,129 • Hyoscyamine • Mamba Toxin 3 • Mamba Toxin 7 • Mazaticol • Mebeverine • Methoctramine • Metixene • Myristicin • N-Ethyl-3-Piperidyl Benzilate • N-Methyl-3-Piperidyl Benzilate • Orphenadrine • Otenzepad • Oxybutynin • PBID • PD-102,807 • Phenglutarimide • Phenyltoloxamine • Pirenzepine • Piroheptine • Procyclidine • Profenamine • RU-47,213 • SCH-57,790 • SCH-72,788 • SCH-217,443 • Scopolamine (Hyoscine) • Solifenacin • Telenzepine • Tiotropium • Tolterodine • Trihexyphenidyl • Tripitamine • Tropatepine • Tropicamide • WIN-2299 • Xanomeline • Zamifenacin; Others: 1st Generation Antihistamines (Brompheniramine, chlorpheniramine, cyproheptadine, dimenhydrinate, diphenhydramine, doxylamine, mepyramine/pyrilamine, phenindamine, pheniramine, tripelennamine, triprolidine, etc) • Tricyclic Antidepressants (Amitriptyline, doxepin, trimipramine, etc) • Tetracyclic Antidepressants (Amoxapine, maprotiline, etc) • Typical Antipsychotics (Chlorpromazine, thioridazine, etc) • Atypical Antipsychotics (Clozapine, olanzapine, quetiapine, etc)

nAChR

Agonists: 5-HIAA • A-84,543 • A-366,833 • A-582,941 • A-867,744 • ABT-202 • ABT-418 • ABT-560 • ABT-894 • Acetylcholine • Altinicline • Anabasine • AR-R17779 • Butyrylcholine • Carbachol • Cotinine • Cytisine • Decamethonium • Desformylflustrabromine • Dianicline • Dimethylphenylpiperazinium • Epibatidine • Epiboxidine • Ethanol • Ethoxysebacylcholine • EVP-4473 • EVP-6124 • Galantamine • GTS-21 • Ispronicline • Lobeline • MEM-63,908 (RG-3487) • Nicotine • NS-1738 • PHA-543,613 • PHA-709,829 • PNU-120,596 • PNU-282,987 • Pozanicline • Rivanicline • Sazetidine A • Sebacylcholine • SIB-1508Y • SIB-1553A • SSR-180,711 • Suberylcholine • TC-1698 • TC-1734 • TC-1827 • TC-2216 • TC-5214 • TC-5619 • TC-6683 • Tebanicline • Tropisetron • UB-165 • Varenicline • WAY-317,538 • XY-4083
Antagonists: 18-Methoxycoronaridine • α-Bungarotoxin • α-Conotoxin • Alcuronium • Amantadine • Anatruxonium • Atracurium • Bupropion (Amfebutamone) • Chandonium • Chlorisondamine • Cisatracurium • Coclaurine • Coronaridine • Dacuronium • Decamethonium • Dextromethorphan • Dextropropoxyphene • Dextrorphan • Diadonium • DHβE • Dimethyltubocurarine (Metocurine) • Dipyrandium • Dizocilpine (MK-801) • Doxacurium • Duador • Esketamine • Fazadinium • Gallamine • Hexafluronium • Hexamethonium (Benzohexonium) • Ibogaine • Isoflurane • Ketamine • Kynurenic acid • Laudexium (Laudolissin) • Levacetylmethadol • Malouetine • Mecamylamine • Memantine • Methadone • Methorphan (Racemethorphan) • Methyllycaconitine • Metocurine • Mivacurium • Morphanol (Racemorphanol) • Neramexane • Nitrous Oxide • Pancuronium • Pempidine • Pentamine • Pentolinium • Phencyclidine • Pipecuronium • Radafaxine • Rapacuronium • Rocuronium • Surugatoxin • Suxamethonium (Succinylcholine) • Thiocolchicoside • Toxiferine • Trimethaphan • Tropeinium • Tubocurarine • Vecuronium • Xenon

Reuptake inhibitors

Plasmalemmal

CHT Inhibitors	Hemicholinium-3 (Hemicholine; HC3) • Triethylcholine

Vesicular

VAChT Inhibitors	Vesamicol

Enzyme inhibitors

Anabolism

ChAT inhibitors	1-(-Benzoylethyl)pyridinium • 2-(α-Naphthoyl)ethyltrimethylammonium • 3-Chloro-4-stillbazole • 4-(1-Naphthylvinyl)pyridine • Acetylseco hemicholinium-3 • Acryloylcholine • AF64A • B115 • BETA • CM-54,903 • N,N-Dimethylaminoethylacrylate • N,N-Dimethylaminoethylchloroacetate

Catabolism

AChE inhibitors

Reversible: Carbamates: Aldicarb • Bendiocarb • Bufencarb • Carbaryl • Carbendazim • Carbetamide • Carbofuran • Chlorbufam • Chloropropham • Ethienocarb • Ethiofencarb • Fenobucarb • Fenoxycarb • Formetanate • Furadan • Ladostigil • Methiocarb • Methomyl • Miotine • Oxamyl • Phenmedipham • Pinmicarb • Pirimicarb • Propamocarb • Propham • Propoxur; Stigmines: Ganstigmine • Neostigmine • Phenserine • Physostigmine • Pyridostigmine • Rivastigmine; Others: Acotiamide • Ambenonium • Donepezil • Edrophonium • Galantamine • Huperzine A • Minaprine • Tacrine • Zanapezil
Irreversible: Organophosphates: Acephate • Azinphos-methyl • Bensulide • Cadusafos • Chlorethoxyfos • Chlorfenvinphos • Chlorpyrifos • Chlorpyrifos-Methyl • Coumaphos • Cyclosarin (GF) • Demeton • Demeton-S-Methyl • Diazinon • Dichlorvos • Dicrotophos • Diisopropyl fluorophosphate (Guthion) • Diisopropylphosphate • Dimethoate • Dioxathion • Disulfoton • EA-3148 • Echothiophate • Ethion • Ethoprop • Fenamiphos • Fenitrothion • Fenthion • Fosthiazate • GV • Isofluorophate • Isoxathion • Malaoxon • Malathion • Methamidophos • Methidathion • Metrifonate • Mevinphos • Monocrotophos • Naled • Novichok agent • Omethoate • Oxydemeton-Methyl • Paraoxon • Parathion • Parathion-Methyl • Phorate • Phosalone • Phosmet • Phostebupirim • Phoxim • Pirimiphos-Methyl • Sarin (GB) • Soman (GD) • Tabun (GA) • Temefos • Terbufos • Tetrachlorvinphos • Tribufos • Trichlorfon • VE • VG • VM • VR • VX; Others: Demecarium • Onchidal (Onchidella binneyi)

BChE inhibitors

* Many of the acetylcholinesterase inhibitors listed above act as butyrylcholinesterase inhibitors.

Others

Precursors	Choline (Lecithin) • Citicoline • Cyprodenate • Dimethylethanolamine (DMAE, deanol) • Glycerophosphocholine • Meclofenoxate (Centrophenoxine) • Phosphatidylcholine • Phosphatidylethanolamine • Phosphorylcholine • Pirisudanol
Cofactors	Acetic acid • Acetylcarnitine • Acetyl-coA • Vitamin B₅ (Pantethine, Pantetheine, Panthenol)
Others	Acetylcholine releasing agents: α-Latrotoxin • β-Bungarotoxin; Acetylcholine release inhibitors: Botulinum toxin (Botox); Acetylcholinesterase reactivators: Asoxime • Obidoxime • Pralidoxime