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Oxaprotiline (C 49-802 BDA), also known as hydroxymaprotiline, is a norepinephrine reuptake inhibitor of the tetracyclic antidepressant family that is related to maprotiline. Though investigated as an antidepressant,[1] it was never marketed.
Chemistry
Oxaprotiline is a racemic compound composed of two isomers, R(−)- or levo- oxaprotiline (levoprotiline; CGP-12,103-A), and S(+)- or dextro- oxaprotiline (dextroprotiline; CGP-12,104-A). Both enantiomers are active, with the levo- form acting merely as an antihistamine and the dextro- form having a more expansive pharmacology (see below), but with both unexpectedly still retaining antidepressant effects.[2]
Pharmacology
Dextroprotiline acts as a potent norepinephrine reuptake inhibitor[3][4] and H1 receptor antagonist,[5] as well as a very weak α1-adrenergic receptor antagonist.[3][6] It has negligible affinity for the serotonin transporter,[3] dopamine transporter, α2-adrenergic receptor,[3][6] and muscarinic acetylcholine receptors.[6] Whether it has any antagonistic effects on the 5-HT2 or D2 receptors like its relative maprotiline is unclear.
Levoprotiline acts as a selective H1 receptor antagonist, with no affinity for adrenaline, dopamine, muscarinic acetylcholine, or serotonin receptors, or any of the monoamine transporters.[3][4][5]
See also
References
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Non-selective
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MAOA-selective
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MAOB-Selective
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| Description |
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| Disorders |
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| Treatment |
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| α1 |
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- Antagonists
- Abanoquil
- Adimolol
- Ajmalicine
- Alfuzosin
- Amosulalol
- Anisodamine
- Arotinolol
- Atiprosin
- Atypical antipsychotics (e.g., 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
- Nefazodone
- Neldazosin
- Niaprazine
- Nicergoline
- Niguldipine
- Pardoprunox
- Pelanserin
- Phendioxan
- Phenoxybenzamine
- Phentolamine
- Piperoxan
- Prazosin
- Quinazosin
- Ritanserin
- Silodosin
- Spiperone
- Talipexole
- Tamsulosin
- Terazosin
- Tiodazosin
- Tolazoline
- Trazodone
- 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
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| α2 |
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- Antagonists
- 1-PP
- Adimolol
- Aptazapine
- Atipamezole
- Atypical antipsychotics (e.g., asenapine, clozapine, lurasidone, paliperidone, quetiapine, risperidone, zotepine)
- Azapirones (e.g., buspirone, 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
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| β |
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| NET |
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- Others
- Antihistamines (e.g., brompheniramine, chlorphenamine, pheniramine, tripelennamine)
- Arylcyclohexylamines (e.g., ketamine, phencyclidine)
- CP-39,332
- EXP-561
- Fezolamine
- Ginkgo biloba
- Indeloxazine
- Loxapine
- Nefazodone
- Nefopam
- Opioids (e.g., methadone, pethidine (meperidine), tapentadol, tramadol, levorphanol)
- Pridefine
- Tedatioxetine
- Teniloxazine
- Tofenacin
- Tropanes (e.g., cocaine)
- Ziprasidone
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| VMATs |
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Receptor
(ligands) |
| H1 |
- Non-generational: Atypical antipsychotics (e.g., aripiprazole, asenapine, clozapine, iloperidone, olanzapine, paliperidone, quetiapine, risperidone, ziprasidone, zotepine)
- 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)
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| H2 |
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| H3 |
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| H4 |
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Transporter
(inhibitors) |
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Enzyme
(inhibitors) |
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| Others |
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| Description |
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| Disease |
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| Treatment |
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