Fencamfamine
Fencamfamine (Glucoenergan, Reactivan) is a stimulant which was developed by Merck in the 1960s.[2]
Medical uses
Fencamfamine is still used, though rarely, for treating depressive day-time fatigue, lack of concentration and lethargy, particularly in individuals who have chronic medical conditions, as its favourable safety profile makes it the most suitable drug in some cases.[3]
Adverse effects
Fencamfamine is well tolerated and causes minimal circulatory effects. Extended use may result in a dryness of the mouth. [3]
Contraindications
Not to be used with heart diseases, angina pectoris and decompensated cardiac insufficiency, glaucoma, hyper-excitability and thyrotoxicosis or while treated with monoamine oxidase inhibitors.[3]
Overdose
Symptoms of overdose are nausea, agitation and restlessness, dryness of the mouth, dizziness and tremor. In gross overdosage also associated with dyspnoea, tachycardia, disorientation and convulsions.[3]
Research
In a study on slices of rat corpus striatum and substantia nigra fencamfamine acted as an indirect dopamine agonist. It released dopamine by a similar mechanism to amphetamines, but was ten times less potent than dexamphetamine at producing this effect. The main mechanism of action was instead inhibition of dopamine reuptake. Also unlike amphetamines, fencamfamine does not inhibit the action of monoamine oxidase enzymes. It was concluded that, at least in the models employed, the in vitro profile of fencamfamine is more similar to that of nomifensine, a reportedly pure uptake inhibitor, than to d-amphetamine.[4]
In animal experiments on place preference fencamfamine produced a significant place preference only at the dose of 3.5 mg/kg. The experiments suggested a relation to dopamine D1 receptors, and also to opioid receptors in the reinforcement produced by fencamfamine, as place preference was blocked by the selective dopamine D1 antagonist SCH 23390 and by the opioid antagonist naloxone.[5] A similar place preference, which was blocked by naloxone and by SCH 23390 and by raclopride, has been seen in a study on rats with drinking water. Animals treated with naloxone before the conditioning sessions showed a place aversion instead of the place preference found in saline-treated animals. Naloxone also reduced drinking. It was proposed that naloxone induced a state of frustrative nonreward. It was suggested that both dopamine and (endogenous) opioids are important for water-induced reinforcement. Possible interactions between these two neurotransmitter systems were discussed.[6]
References
- ^ Delbeke, F. T.; Debackere, M. (1981). "Detection and metabolism of fencamfamine and the influence of acetazolamide on its urinary excretion". Biopharmaceutics & drug disposition 2 (1): 17–30. PMID 7236868. edit
- ^ DE patent 1110159
- ^ a b c d REACTIVAN Tablets; REACTIVAN Syrup
- ^ Seyfried, C. A. (1983). "Dopamine uptake inhibiting versus dopamine releasing properties of fencamfamine: an in vitro study". Biochemical pharmacology 32 (15): 2329–2331. doi:10.1016/0006-2952(83)90181-8. PMID 6136281. edit
- ^ Planeta Cda, S.; Aizenstein, M. L.; Delucia, R. (1995). "Reinforcing properties of fencamfamine: involvement of dopamine and opioid receptors". Pharmacology, biochemistry, and behavior 50 (1): 35–40. doi:10.1016/0091-3057(94)00236-C. PMID 7700952. edit
- ^ Agmo, A.; Federman, I.; Navarro, V.; Padua, M.; Velazquez, G. (1993). "Reward and reinforcement produced by drinking water: Role of opioids and dopamine receptor subtypes". Pharmacology, biochemistry, and behavior 46 (1): 183–194. PMID 8255911. edit
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See also Sympathomimetic amines
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Agonists: 5-FNE • 6-FNE • Amidephrine • Anisodamine • Anisodine • Cirazoline • Dipivefrine • Dopamine • Ephedrine • Epinephrine (Adrenaline) • Etilefrine • Ethylnorepinephrine • Indanidine • Levonordefrin • Metaraminol • Methoxamine • Methyldopa • Midodrine • Naphazoline • Norepinephrine (Noradrenaline) • Octopamine • Oxymetazoline • Phenylephrine • Phenylpropanolamine • Pseudoephedrine • Synephrine • Tetrahydrozoline
Antagonists: Abanoquil • Adimolol • Ajmalicine • Alfuzosin • Amosulalol • Arotinolol • Atiprosin • Benoxathian • Buflomedil • Bunazosin • Carvedilol • CI-926 • Corynanthine • Dapiprazole • DL-017 • Domesticine • Doxazosin • Eugenodilol • Fenspiride • GYKI-12,743 • GYKI-16,084 • Indoramin • Ketanserin • L-765,314 • Labetalol • Mephendioxan • Metazosin • Monatepil • Moxisylyte (Thymoxamine) • Naftopidil • Nantenine • Neldazosin • Nicergoline • Niguldipine • Pelanserin • Phendioxan • Phenoxybenzamine • Phentolamine • Piperoxan • Prazosin • Quinazosin • Ritanserin • RS-97,078 • SGB-1,534 • Silodosin • SL-89.0591 • Spiperone • Talipexole • Tamsulosin • Terazosin • Tibalosin • Tiodazosin • Tipentosin • Tolazoline • Trimazosin • Upidosin • Urapidil • Zolertine
* Note that many TCAs, TeCAs, antipsychotics, ergolines, and some piperazines like buspirone, trazodone, nefazodone, etoperidone, and mepiprazole all antagonize α1-adrenergic receptors as well, which contributes to their side effects such as orthostatic hypotension.
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CGS-19281A • SKF-64139 • SKF-7698
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Adamantanes: Amantadine • Memantine • Rimantadine; Aminotetralins: 7-OH-DPAT • 8-OH-PBZI • Rotigotine • UH-232; Benzazepines: 6-Br-APB • Fenoldopam • SKF-38,393 • SKF-77,434 • SKF-81,297 • SKF-82,958 • SKF-83,959; Ergolines: Bromocriptine • Cabergoline • Dihydroergocryptine • Lisuride • LSD • Pergolide; Dihydrexidine derivatives: 2-OH-NPA • A-86,929 • Ciladopa • Dihydrexidine • Dinapsoline • Dinoxyline • Doxanthrine; Others: A-68,930 • A-77636 • A-412,997 • ABT-670 • ABT-724 • Aplindore • Apomorphine • Aripiprazole • Bifeprunox • BP-897 • CY-208,243 • Dizocilpine • Etilevodopa • Flibanserin • Ketamine • Melevodopa • Modafinil • Pardoprunox • Phencyclidine • PD-128,907 • PD-168,077 • PF-219,061 • Piribedil • Pramipexole • Propylnorapomorphine • Pukateine • Quinagolide • Quinelorane • Quinpirole • RDS-127 • Ro10-5824 • Ropinirole • Rotigotine • Roxindole • Salvinorin A • SKF-89,145 • Sumanirole • Terguride • Umespirone • WAY-100,635
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Morpholines: Fenbutrazate • Morazone • Phendimetrazine • Phenmetrazine; Oxazolines: 4-Methylaminorex (4-MAR, 4-MAX) • Aminorex • Clominorex • Cyclazodone • Fenozolone • Fluminorex • Pemoline • Thozalinone; Phenethylamines (also amphetamines, cathinones, phentermines, etc): 2-Hydroxyphenethylamine (2-OH-PEA) • 4-CAB • 4-Methylamphetamine (4-MA) • 4-Methylmethamphetamine (4-MMA) • Alfetamine • Amfecloral • Amfepentorex • Amfepramone • Amphetamine ( Dextroamphetamine, Levoamphetamine) • Amphetaminil • β-Methylphenethylamine (β-Me-PEA) • Benzodioxolylbutanamine (BDB) • Benzodioxolylhydroxybutanamine (BOH) • Benzphetamine • Buphedrone • Butylone • Cathine • Cathinone • Clobenzorex • Clortermine • D-Deprenyl • Dimethoxyamphetamine (DMA) • Dimethoxymethamphetamine (DMMA) • Dimethylamphetamine • Dimethylcathinone (Dimethylpropion, metamfepramone) • Ethcathinone (Ethylpropion) • Ethylamphetamine • Ethylbenzodioxolylbutanamine (EBDB) • Ethylone • Famprofazone • Fenethylline • Fenproporex • Flephedrone • Fludorex • Furfenorex • Hordenine • Lophophine (Homomyristicylamine) • Mefenorex • Mephedrone • Methamphetamine (Desoxyephedrine, Methedrine; Dextromethamphetamine, Levomethamphetamine) • Methcathinone (Methylpropion) • Methedrone • Methoxymethylenedioxyamphetamine (MMDA) • Methoxymethylenedioxymethamphetamine (MMDMA) • Methylbenzodioxolylbutanamine (MBDB) • Methylenedioxyamphetamine (MDA, tenamfetamine) • Methylenedioxyethylamphetamine (MDEA) • Methylenedioxyhydroxyamphetamine (MDOH) • Methylenedioxymethamphetamine (MDMA) • Methylenedioxymethylphenethylamine (MDMPEA, homarylamine) • Methylenedioxyphenethylamine (MDPEA, homopiperonylamine) • Methylone • Ortetamine • Parabromoamphetamine (PBA) • Parachloroamphetamine (PCA) • Parafluoroamphetamine (PFA) • Parafluoromethamphetamine (PFMA) • Parahydroxyamphetamine (PHA) • Paraiodoamphetamine (PIA) • Paredrine (Norpholedrine, Oxamphetamine) • Phenethylamine (PEA) • Pholedrine • Phenpromethamine • Prenylamine • Propylamphetamine • Tiflorex (Flutiorex) • Tyramine (TRA) • Xylopropamine • Zylofuramine; Piperazines: 2,5-Dimethoxy-4-bromobenzylpiperazine (2C-B-BZP) • Benzylpiperazine (BZP) • Methoxyphenylpiperazine (MeOPP, paraperazine) • Methylbenzylpiperazine (MBZP) • Methylenedioxybenzylpiperazine (MDBZP, piperonylpiperazine); Others: 2-Amino-1,2-dihydronaphthalene (2-ADN) • 2-Aminoindane (2-AI) • 2-Aminotetralin (2-AT) • 4-Benzylpiperidine (4-BP) • 5-IAI • Clofenciclan • Cyclopentamine • Cypenamine • Cyprodenate • Feprosidnine • Gilutensin • Heptaminol • Hexacyclonate • Indanylaminopropane (IAP) • Indanorex • Isometheptene • Methylhexanamine • Naphthylaminopropane (NAP) • Octodrine • Phthalimidopropiophenone • Propylhexedrine ( Levopropylhexedrine) • Tuaminoheptane (Tuamine)
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