Chemical compound
Meclofenoxate (INN , BAN ; brand name Lucidril , also known as centrophenoxine ) is a cholinergic nootropic used as a dietary supplement .[ 2] [ 3] [ 4] It is an ester of dimethylethanolamine (DMAE) and 4-chlorophenoxyacetic acid (pCPA).
In elderly patients, meclofenoxate has been shown to improve performance on certain memory tests.[ 5] Meclofenoxate also increases cellular membrane phospholipids.[citation needed ] It is sold in Japan and some European countries, such as Germany , Hungary , and Austria , as a prescription drug .
Meclofenoxate is considered to be safe and high in tolerability . However, possible side effects may include, rarely, insomnia , dizziness , restlessness , muscle tremor , depression , nausea , muscle tension , and headache ; these side effects may be due to overdosage and may indicate the need for the dosage to be reduced.
Meclofenoxate, as well as DMAE, have been found to increase the lifespans of mice by 26.5%.[ 6] [ 7]
In addition to Lucidril, meclofenoxate has also been marketed under the brand names Amipolen, Analux, Brenal, Cellative, Centrophenoxin, Cerebron, Cerutil, Closete, Helfergin, Lucidryl, Lutiaron, Marucotol, Proserout, Proseryl, and Ropoxyl.[ 8] In the US, meclofenoxate is sold as a dietary supplement, although it is an unapproved drug.[ 4]
^ Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-16 . ^ Elks J (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies . Springer. pp. 758–. ISBN 978-1-4757-2085-3 . ^ Index Nominum 2000: International Drug Directory . Taylor & Francis. January 2000. pp. 636–. ISBN 978-3-88763-075-1 . ^ a b Cohen PA, Avula B, Khan I (October 2022). "The unapproved drug centrophenoxine (meclofenoxate) in cognitive enhancement dietary supplements". Clinical Toxicology . 60 (10): 1156–1158. doi :10.1080/15563650.2022.2109485 . PMID 35959800 . S2CID 251516603 . ^ Marcer D, Hopkins SM (May 1977). "The differential effects of meclofenoxate on memory loss in the elderly" . Age and Ageing . 6 (2): 123–31. doi :10.1093/ageing/6.2.123 . PMID 329662 . ^ Donaldson T (1 January 2003). "A Brief History of Anti-aging Drugs" . In Klatz R, Goldman B (eds.). The Science of Anti-aging Medicine . American Academy of Anti-Aging Med. pp. 66–. ISBN 978-0-9668937-3-1 . ^ Hothschild R (August 1973). "Effect of dimethylamnioethyl p-chlorophenoxyacetate on the life span of male Swiss Webster Albino mice". Experimental Gerontology . 8 (4): 177–183. doi :10.1016/0531-5565(73)90024-7 . PMID 4147092 . ^ Zhou Y (22 October 2013). Drugs in Psychiatric Practice . Elsevier. ISBN 978-1-4831-9193-5 .
mAChRs Tooltip Muscarinic acetylcholine receptors
Agonists Antagonists 3-Quinuclidinyl benzilate 4-DAMP Aclidinium bromide (+formoterol ) Abediterol AF-DX 250 AF-DX 384 Ambutonium bromide Anisodamine Anisodine Antihistamines (first-generation) (e.g., brompheniramine , buclizine , captodiame , chlorphenamine (chlorpheniramine) , cinnarizine , clemastine , cyproheptadine , dimenhydrinate , dimetindene , diphenhydramine , doxylamine , meclizine , mequitazine , perlapine , phenindamine , pheniramine , phenyltoloxamine , promethazine , propiomazine , triprolidine ) AQ-RA 741 Atropine Atropine methonitrate Atypical antipsychotics (e.g., clozapine , fluperlapine , olanzapine (+fluoxetine ), rilapine , quetiapine , tenilapine , zotepine ) Benactyzine Benzatropine (benztropine) Benzilone Benzilylcholine mustard Benzydamine Bevonium BIBN 99 Biperiden Bornaprine Camylofin CAR-226,086 CAR-301,060 CAR-302,196 CAR-302,282 CAR-302,368 CAR-302,537 CAR-302,668 Caramiphen Cimetropium bromide Clidinium bromide Cloperastine CS-27349 Cyclobenzaprine Cyclopentolate Darifenacin DAU-5884 Desfesoterodine Dexetimide DIBD Dicycloverine (dicyclomine) Dihexyverine Difemerine Diphemanil metilsulfate Ditran Drofenine EA-3167 EA-3443 EA-3580 EA-3834 Emepronium bromide Etanautine Etybenzatropine (ethybenztropine) Fenpiverinium Fentonium bromide Fesoterodine Flavoxate Glycopyrronium bromide (+beclometasone/formoterol , +indacaterol , +neostigmine ) Hexahydrodifenidol Hexahydrosiladifenidol Hexbutinol Hexocyclium Himbacine HL-031,120 Homatropine Imidafenacin Ipratropium bromide (+salbutamol ) Isopropamide J-104,129 Hyoscyamine Mamba toxin 3 Mamba toxin 7 Mazaticol Mebeverine Meladrazine Mepenzolate Methantheline Methoctramine Methylatropine Methylhomatropine Methylscopolamine Metixene Muscarinic toxin 7 N-Ethyl-3-piperidyl benzilate N-Methyl-3-piperidyl benzilate Nefopam Octatropine methylbromide (anisotropine methylbromide) Orphenadrine Otenzepad (AF-DX 116) Otilonium bromide Oxapium iodide Oxitropium bromide Oxybutynin Oxyphencyclimine Oxyphenonium bromide PBID PD-102,807 PD-0298029 Penthienate Pethidine pFHHSiD Phenglutarimide Phenyltoloxamine Pipenzolate bromide Piperidolate Pirenzepine Piroheptine Pizotifen Poldine Pridinol Prifinium bromide Procyclidine Profenamine (ethopropazine) Propantheline bromide Propiverine Quinidine 3-Quinuclidinyl thiochromane-4-carboxylate Revefenacin Rociverine RU-47,213 SCH-57,790 SCH-72,788 SCH-217,443 Scopolamine (hyoscine) Scopolamine butylbromide (hyoscine butylbromide) Silahexacyclium Sofpironium bromide Solifenacin SSRIs Tooltip Selective serotonin reuptake inhibitors (e.g., femoxetine , paroxetine ) Telenzepine Terodiline Tetracyclic antidepressants (e.g., amoxapine , maprotiline , mianserin , mirtazapine ) Tiemonium iodide Timepidium bromide Tiotropium bromide Tiquizium bromide Tofenacin Tolterodine Tricyclic antidepressants (e.g., amitriptyline (+perphenazine ), amitriptylinoxide , butriptyline , cidoxepin , clomipramine , desipramine , desmethyldesipramine , dibenzepin , dosulepin (dothiepin) , doxepin , imipramine , lofepramine , nitroxazepine , northiaden (desmethyldosulepin) , nortriptyline , protriptyline , quinupramine , trimipramine ) Tridihexethyl Trihexyphenidyl Trimebutine Tripitamine (tripitramine) Tropacine Tropatepine Tropicamide Trospium chloride Typical antipsychotics (e.g., chlorpromazine , chlorprothixene , cyamemazine (cyamepromazine) , loxapine , mesoridazine , thioridazine ) Umeclidinium bromide (+vilanterol ) WIN-2299 Xanomeline Zamifenacin
Precursors (and prodrugs )
nAChRs Tooltip Nicotinic acetylcholine receptors
Agonists (and PAMs Tooltip positive allosteric modulators ) 5-HIAA 6-Chloronicotine A-84,543 A-366,833 A-582,941 A-867,744 ABT-202 ABT-418 ABT-560 ABT-894 Acetylcholine Altinicline Anabasine Anatabine Anatoxin-a AR-R17779 Bephenium hydroxynaphthoate Butinoline Butyrylcholine Carbachol Choline Cotinine Cytisine Decamethonium Desformylflustrabromine Dianicline Dimethylphenylpiperazinium Epibatidine Epiboxidine Ethanol (alcohol) Ethoxysebacylcholine EVP-4473 EVP-6124 Galantamine GTS-21 Ispronicline Ivermectin JNJ-39393406 Levamisole Lobeline MEM-63,908 (RG-3487) Morantel Nicotine (tobacco ) NS-1738 PHA-543,613 PHA-709,829 PNU-120,596 PNU-282,987 Pozanicline Pyrantel Rivanicline RJR-2429 Sazetidine A SB-206553 Sebacylcholine SIB-1508Y SIB-1553A SSR-180,711 Suberyldicholine Suxamethonium (succinylcholine) Suxethonium (succinyldicholine) TC-1698 TC-1734 TC-1827 TC-2216 TC-5214 TC-5619 TC-6683 Tebanicline Tribendimidine Tropisetron UB-165 Varenicline WAY-317,538 XY-4083 Antagonists (and NAMs Tooltip negative allosteric modulators )
Precursors (and prodrugs )