Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
297.118734925
InChI
InChI=1S/C18H19NOS/c1-19-12-11-17(18-10-5-13-21-18)20-16-9-4-7-14-6-2-3-8-15(14)16/h2-10,13,17,19H,11-12H2,1H3/t17-/m0/s1
InChI Key
InChIKey=ZEUITGRIYCTCEM-KRWDZBQOSA-N
IUPAC Name
methyl[(3S)-3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propyl]amine
Traditional IUPAC Name
duloxetine
SMILES
CNCC[C@H](OC1=CC=CC2=CC=CC=C12)C1=CC=CS1
pKa (Strongest Basic)
9.7
Refractivity
87.73 m3·mol-1
Dược Lực Học :
Duloxetine is in a class of medications called selective serotonin and norepinephrine reuptake inhibitors (SSNRIs) and primarily targets major depressive disorders (MDD) and stress urinary incontinence (SUI). Duloxetine is also used to treat pain and tingling caused by diabetic neuropathy (damage to nerves that can develop in people who have diabetes). Known also as LY248686, it is a potent dual inhibitor of serotonin (5-hydroxytryptamine, 5-HT) and norepinephrine (NE) reuptake, possessing comparable affinities in binding to NE and 5-HT transport sites. Interestingly, its behavior contrasts to most other dual-reuptake inhibitors. Furthermore, duloxentine lacks affinity for monoamine receptors within the central nervous system.
Cơ Chế Tác Dụng :
Duloxetine (brand names Cymbalta, Yentreve, and in parts of Europe, Xeristar or Ariclaim) is a drug which primarily targets major depressive disorder (MDD), generalized anxiety disorder (GAD), pain related to diabetic peripheral neuropathy and in some countries stress urinary incontinence (SUI). It is manufactured and marketed by Eli Lilly and Company.
Duloxetine has not yet been FDA approved for stress urinary incontinence or for fibromyalgia.
Duloxetine is a selective SNRI (selective serotonin-norepinephrine reuptake inhibitor). Duloxetine is a systemic drug therapy which affects the body as a whole. Known also under the code name LY248686, it is a potent dual reuptake inhibitor of serotonin (5-hydroxytryptamine, 5-HT) and norepinephrine (NE), possessing comparable affinities in binding to NE- and 5-HT transporter sites. It is a less potent inhibitor of dopamine reuptake.
Duloxetine is a potent inhibitor of neuronal serotonin and norepinephrine reuptake and a less potent inhibitor of dopamine reuptake. Duloxetine has no significant affinity for dopaminergic, adrenergic, cholinergic, histaminergic, opioid, glutamate, and GABA receptors. The antidepressant and pain inhibitory actions of duloxetine are believed to be related to its potentiation of serotonergic and noradrenergic activity in the CNS. The mechanism of action of duloxetine in SUI has not been determined, but is thought to be associated with the potentiation of serotonin and norepinephrine activity in the spinal cord, which increases urethral closure forces and thereby reduces involuntary urine loss.
Dược Động Học :
▧ Absorption :
Orally administered duloxetine hydrochloride is well absorbed.
▧ Volume of Distribution :
* 1640 L
▧ Protein binding :
Protein binding is greater than 90%.
▧ Metabolism :
The major biotransformation pathways for duloxetine involve oxidation of the naphthyl ring followed by conjugation and further oxidation. Both CYP2D6 and CYP1A2 catalyze the oxidation of the naphthyl ring in vitro. Metabolites found in plasma include 4-hydroxy duloxetine glucuronide and 5-hydroxy, 6-methoxy duloxetine sulfate. The major circulating metabolites have not been shown to contribute significantly to the pharmacologic activity of duloxetine.
▧ Route of Elimination :
Many additional metabolites have been identified in urine, some representing only minor pathways of elimination. Most (about 70%) of the duloxetine dose appears in the urine as metabolites of duloxetine; about 20% is excreted in the feces.
▧ Half Life :
12 hours (range 8-17 hours)
Độc Tính :
Oral, rat LD50: 491 mg/kg for males and 279 mg/kg for females. Symptoms of overdose include tremors, convulsions, reduced activity, slow pupillary response, intermittent tremors, and rigidity.
Chỉ Định :
For the acute and maintenance treatment of major depressive disorder (MDD), as well as acute management of generalized anxiety disorder. Also used for the management of neuropathic pain associated with diabetic peripheral neuropathy, and fibromyalgia. Has been used in the management of moderate to severe stress urinary incontinence (SUI) in women.
Tương Tác Thuốc :
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Aldesleukin
Monitor therapy due to enhanced orthostatic hypotensive effect of duloxetine.
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Aliskiren
Monitor therapy due to enhanced orthostatic hypotensive effect of duloxetine.
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Amitriptyline
Possible increase in the levels of this agent when used with duloxetine
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Ciprofloxacin
Ciprofloxacin, a strong CYP1A2 inhibitor, may decrease the metabolism of duloxetine. Monitor for changes in the therapeutic and adverse effects of duloxetine if ciprofloxacin is initiated or discontinued.
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Desipramine
Possible increase in the levels of this agent when used with duloxetine
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Desvenlafaxine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Flecainide
Possible increase in the levels of this agent when used with duloxetine
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Fluvoxamine
Fluvoxamine increases the effect and toxicity of duloxetine
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Imipramine
Possible increase in the levels of this agent when used with duloxetine
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Isocarboxazid
Possible severe adverse reaction with this combination
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Nortriptyline
Possible increase in the levels of this agent when used with duloxetine
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Phenelzine
Possible severe adverse reaction with this combination
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Propafenone
Possible increase in the levels of this agent when used with duloxetine
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Rasagiline
Possible severe adverse reaction with this combination
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Tamoxifen
Duloxetine may decrease the therapeutic effect of Tamoxifen by decreasing the production of active metabolites. Consider alternate therapy.
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Tamsulosin
Duloxetine, a CYP2D6 inhibitor, may decrease the metabolism and clearance of Tamsulosin, a CYP2D6 substrate. Monitor for changes in therapeutic/adverse effects of Tamsulosin if Duloxetine is initiated, discontinued, or dose changed.
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Terbinafine
Terbinafine may reduce the metabolism and clearance of Duloxetine. Consider alternate therapy or monitor for therapeutic/adverse effects of Duloxetine if Terbinafine is initiated, discontinued or dose changed.
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Thiabendazole
The strong CYP1A2 inhibitor, Thiabendazole, may increase the effects and toxicity of Duloxetine by decreasing Duloxetine metabolism and clearance. Monitor for changes in the therapeutic and adverse effects of Duloxetine if Thiabendazole is initiated, discontinued or dose changed.
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Thioridazine
Increased risk of cardiotoxicity and arrhythmias
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Tramadol
Duloxetine may decrease the effect of Tramadol by decreasing active metabolite production. Increased risk of serotonin syndrome. Monitor for Tramadol efficacy and symptoms of serotonin syndrome.
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Tranylcypromine
Increased risk of serotonin syndrome. Concomitant therapy should be avoided. A significant washout period, dependent on the half-lives of the agents, should be employed between therapies.
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Trazodone
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Trimipramine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Triprolidine
The CNS depressants, Triprolidine and Duloxetine, may increase adverse/toxic effects due to additivity. Monitor for increased CNS depressant effects during concomitant therapy.
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Venlafaxine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Zolmitriptan
Use of two serotonin modulators, such as zolmitriptan and duloxetine, increases the risk of serotonin syndrome. Consider alternate therapy or monitor for serotonin syndrome during concomitant therapy.
Liều Lượng & Cách Dùng :
Capsule, coated pellets - Oral
Dữ Kiện Thương Mại
Giá thị trường
-
Giá bán buôn : USD >4.62
Đơn vị tính : capsule
-
Giá bán buôn : USD >4.64
Đơn vị tính : capsule
-
Giá bán buôn : USD >5.18
Đơn vị tính : capsule
-
Giá bán buôn : USD >5.18
Đơn vị tính : capsule
-
Giá bán buôn : USD >5.38
Đơn vị tính : capsule
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Giá bán buôn : USD >5.38
Đơn vị tính : capsule
Nhà Sản Xuất
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Sản phẩm biệt dược : Ariclaim
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Sản phẩm biệt dược : Cymbalta
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Sản phẩm biệt dược : Dulane
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Sản phẩm biệt dược : Duzela
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Sản phẩm biệt dược : Xeristar
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Sản phẩm biệt dược : Yentreve
Tài Liệu Tham Khảo Thêm
National Drug Code Directory