Overview
| Generic Names: | (+-)-duloxetine; Duloxetine HCl; Duloxetine Hydrochloride |
|---|---|
| Trade Names: | Cymbalta; Yentreve |
| PharmGKB Accession Id: | PA10066 |
Description
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.
(source:
Drug Bank)
Indication
For the treatment of major depressive disorder (MDD). (source: Drug Bank)
ATC Therapeutic Category
- N06AX:Other antidepressants
Pharmacology, Interactions, and Contraindications
Mechanism Of Action
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. (source: Drug Bank)
Pharmacology
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. (source: Drug Bank)
Food Interactions
Food does not affect maximum levels reached, but delays it (from 6 to 10 hours) and total product exposure appears to be reduced by only 10%.
People taking this product who drink large amounts of alcohol are exposed to a higher risk of liver toxicity.
Take without regard to meals.
(source:
Drug Bank)
Absorption, Distribution, Metabolism, Elimination & Toxicity
Biotransformation
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. (source: Drug Bank)
Protein Binding
Protein binding is greater than 90%. (source: Drug Bank)
Absorption
Orally administered duloxetine hydrochloride is well absorbed. (source: Drug Bank)
Toxicity
Oral, rat LD<sub>50</sub>: 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. (source: Drug Bank)
Isomeric SMILES Code:
CNCC[C@@H](c1cccs1)Oc2cccc3c2cccc3 (source: Drug Bank)
The following genes are in curated knowledge about this drug.
| Gene | Relationship | Evidence | |
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COMT |
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CYP1A2 |
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Publications |
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CYP2D6 |
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Publications |
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SLC6A2 |
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Publications |
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SLC6A3 |
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Publications |
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SLC6A4 |
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Publications |
A list of non-curated publications that mention this drug along with other genes is available.
Drug Targets
| Gene | Description | |
|---|---|---|
| SLC6A3 |
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(source: Drug Bank) |
| SLC6A2 |
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(source: Drug Bank) |
| SLC6A4 |
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(source: Drug Bank) |
The following drugs are in curated knowledge about this drug.
| Drug | Relationship | Evidence | |
|---|---|---|---|
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tamoxifen |
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Publications |
A list of non-curated publications that mention this drug along with other drugs is available.
Drug Interactions
| Drug | Description | |
|---|---|---|
| amitriptyline |
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Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank) |
| ciprofloxacin |
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Ciprofloxacin increases the effect/toxicity of duloxetine (source: Drug Bank) |
| desipramine |
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Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank) |
| flecainide |
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Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank) |
| fluvoxamine |
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Fluvoxamine increases the effect and toxicity of duloxetine (source: Drug Bank) |
| imipramine |
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Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank) |
| isocarboxazid |
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Possible severe adverse reaction with this combination (source: Drug Bank) |
| nortriptyline |
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Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank) |
| phenelzine |
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Possible severe adverse reaction with this combination (source: Drug Bank) |
| propafenone |
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Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank) |
| rasagiline |
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Possible severe adverse reaction with this combination (source: Drug Bank) |
| thioridazine |
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Increased risk of cardiotoxicity and arrhythmias (source: Drug Bank) |
| tranylcypromine |
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Possible severe adverse reaction with this combination (source: Drug Bank) |
Curated Information
The following diseases are in curated knowledge about this drug.
| Disease | Relationship | Evidence | |
|---|---|---|---|
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Anxiety Disorders |
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Publications |
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Depressive Disorder, Major |
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Publications |
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Fibromyalgia |
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Publications |
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neuropathic pain |
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Publications |
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Urinary Incontinence, Stress |
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Publications |
Non-Curated Information
A list of non-curated publications that mention this drug along with other diseases is available.
LinkOuts
Common Searches
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Non-Curated Publications
A list of non-curated publications that mention this drug is available.
