Drug/Small Molecule:
duloxetine

2D structure

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
Phenotype data available Genotype Data Available Literature annotations available Has annotations
COMT
  •   
  • PD
  •   
  •   
  • GN
Publications
No phenotype data Genotype Data Available Literature annotations available Not annotated
CYP1A2
  •   
  •   
  • PK
  •   
  •   
Publications
Phenotype data available Genotype Data Available Literature annotations available Has annotations
CYP2D6
  •   
  •   
  • PK
  •   
  •   
Publications
No phenotype data Genotype Data Available Literature annotations available Not annotated
SLC6A2
  •   
  • PD
  •   
  • FA
  •   
Publications
No phenotype data Genotype Data Available Literature annotations available Not annotated
SLC6A3
  •   
  • PD
  •   
  •   
  •   
Publications
No phenotype data No genotype data Literature annotations available Not annotated
SLC6A4
  •   
  • PD
  •   
  • FA
  •   
Publications

A list of non-curated publications that mention this drug along with other genes is available.

Drug Targets

Gene Description
SLC6A3 Uncurated Annotation (source: Drug Bank)
SLC6A2 Uncurated Annotation (source: Drug Bank)
SLC6A4 Uncurated Annotation (source: Drug Bank)

The following drugs are in curated knowledge about this drug.

  Drug Relationship Evidence
Phenotype data available Genotype Data Available Literature annotations available Not annotated
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 Uncurated Annotation Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank)
ciprofloxacin Uncurated Annotation Ciprofloxacin increases the effect/toxicity of duloxetine (source: Drug Bank)
desipramine Uncurated Annotation Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank)
flecainide Uncurated Annotation Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank)
fluvoxamine Uncurated Annotation Fluvoxamine increases the effect and toxicity of duloxetine (source: Drug Bank)
imipramine Uncurated Annotation Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank)
isocarboxazid Uncurated Annotation Possible severe adverse reaction with this combination (source: Drug Bank)
nortriptyline Uncurated Annotation Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank)
phenelzine Uncurated Annotation Possible severe adverse reaction with this combination (source: Drug Bank)
propafenone Uncurated Annotation Possible increase in the levels of this agent when used with duloxetine (source: Drug Bank)
rasagiline Uncurated Annotation Possible severe adverse reaction with this combination (source: Drug Bank)
thioridazine Uncurated Annotation Increased risk of cardiotoxicity and arrhythmias (source: Drug Bank)
tranylcypromine Uncurated Annotation 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
No phenotype data No genotype data Literature annotations available Not annotated
Anxiety Disorders
  •   
  • PD
  •   
  •   
  •   
Publications
No phenotype data No genotype data Literature annotations available Not annotated
Depressive Disorder, Major
  •   
  • PD
  •   
  •   
  • GN
Publications
No phenotype data No genotype data Literature annotations available Not annotated
Fibromyalgia
  •   
  • PD
  •   
  •   
  •   
Publications
No phenotype data No genotype data Literature annotations available Not annotated
neuropathic pain
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Publications
No phenotype data No genotype data Literature annotations available Not annotated
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

Web Resource:
Wikipedia
DrugBank:
DB00476
ChEBI ID:
36795
KEGG Drug ID:
D01179
PubChem Compound ID:
60835
PubChem Substance ID:
704934
IUPHAR Ligand ID:
202

Common Searches

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Non-Curated Publications

A list of non-curated publications that mention this drug is available.

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