Drug/Small Molecule:
raloxifene

2D structure

Overview

Generic Names: LY-139481; RAL; Raloxifene Hcl; Raloxifene Hydrochloride; Raloxifeno [Spanish]; Raloxifenum [Latin]; raloxifene
Trade Names: Evista; Keoxifene
PharmGKB Accession Id: PA451221

Description

A second generation selective estrogen receptor modulator (SERM) used to prevent osteoporosis in postmenopausal women. It has estrogen agonist effects on bone and cholesterol metabolism but behaves as a complete estrogen antagonist on mammary gland and uterine tissue. PubChem (source: Drug Bank)

Indication

For the prevention of osteoporosis in post-menopausal women (source: Drug Bank)

ATC Therapeutic Category

  • G03XC:Selective estrogen receptor modulators

Pharmacology, Interactions, and Contraindications

Mechanism Of Action

Raloxifene binds to estrogen receptors, resulting in differential expression of multiple estrogen-regulated genes in different tissues. Raloxifene produces estrogen-like effects on bone, reducing resorption of bone and increasing bone mineral density in postmenopausal women. Raloxifene also antagonizes the effects of estrogen on mammary tissue and blocks uterotrophic responses to estrogen. (source: Drug Bank)

Pharmacology

Raloxifene, a selective estrogen receptor modulator (SERM) of the benzothiophene class, is similar to tamoxifen in that it produces estrogen-like effects on bone and lipid metabolism, while antagonizing the effects of estrogen on mammary tissue. Raloxifene decreases bone resorption, increases bone mineral density (BMD) and decreases incidence of fractures. Raloxifene is used in the prevention of postmenopausal osteoporosis and breast cancer. (source: Drug Bank)

Food Interactions

Avoid alcohol.
Take without regard to meals. (source: Drug Bank)

Absorption, Distribution, Metabolism, Elimination & Toxicity

Biotransformation

Hepatic, raloxifene undergoes extensive first-pass metabolism to the glucuronide conjugates: raloxifene-4'-glucuronide, raloxifene-6-glucuronide, and raloxifene-6, 4'-diglucuronide. No other metabolites have been detected, providing strong evidence that raloxifene is not metabolized by cytochrome P450 pathways (source: Drug Bank)

Protein Binding

95% (source: Drug Bank)

Absorption

Approximately 60% of an oral dose is absorbed, but presystemic glucuronide conjugation is extensive. Absolute bioavailability of raloxifene is 2.0% (source: Drug Bank)

Isomeric SMILES Code:

c1cc(ccc1c2c(c3ccc(cc3s2)O)C(=O)c4ccc(cc4)OCCN5CCCCC5)O (source: Drug Bank)

Curated Annotations (Curated Annotation)

  1. rs1544411 at chr7:10786072
    This variant is associated with alendronate response in Caucasian (Italian) postmenopausal women, with bb genotype associated with lower increase in bone mineral density (BMD) after bisphosphonate treatments. BsmI VDR genotypes influenced the efficacy of antiresorptive drugs particularly when used in combination.
    Variant Name:
    VDR: BsmI
    Related Drugs:
    alendronate, calcium, raloxifene
    Related Diseases:
    Osteoporosis, Osteoporosis, Postmenopausal
    Evidence:
    PMID:15739035
Variant names are different names that have been used in the literature and other resources to refer to the same variant.

The following genes are in curated knowledge about this drug.

  Gene Relationship Evidence
No phenotype data No genotype data Literature annotations available Not annotated
HTR1D
  •   
  • PD
  • PK
  • FA
  •   
Publications
Phenotype data available Genotype Data Available Literature annotations available Has annotations
NR1I2
  •   
  •   
  •   
  • FA
  •   
Publications
Phenotype data available Genotype Data Available Literature annotations available Not annotated
SULT1E1
  •   
  •   
  •   
  • FA
  •   
Publications
Phenotype data available Genotype Data Available Literature annotations available Has annotations
VDR
  • CO
  •   
  •   
  •   
  • GN
Publications

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

Drug Targets

Gene Description
ESR1 Uncurated Annotation (source: Drug Bank)
ESR2 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
warfarin
  •   
  •   
  •   
  •   
  •   
Publications

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

Drug Interactions

Drug Description
cholestyramine Uncurated Annotation The resin decreases the effect of raloxifene (source: Drug Bank)
clomifene Uncurated Annotation Association not recommended (source: Drug Bank)
colestipol Uncurated Annotation The resin decreases the effect of raloxifene (source: Drug Bank)
diethylstilbestrol Uncurated Annotation Association not recommended (source: Drug Bank)
estradiol Uncurated Annotation Association not recommended (source: Drug Bank)
ethinyl estradiol Uncurated Annotation Association not recommended (source: Drug Bank)
levothyroxine Uncurated Annotation Raloxifene decreases absorption of levothyroxine (source: Drug Bank)
mestranol Uncurated Annotation Association not recommended (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
Osteoporosis
  • CO
  •   
  •   
  •   
  • GN
Publications, Variants
No phenotype data No genotype data Literature annotations available Not annotated
Osteoporosis, Postmenopausal
  • CO
  •   
  •   
  •   
  • GN
Publications, Variants

Non-Curated Information

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

Additional Datasets

These datasets are minimally curated and are sorted alphabetically by title.

  1. The Connectivity Map: using gene-expression signatures to connect small molecules, genes, and disease

LinkOuts

Web Resource:
Wikipedia
DrugBank:
DB00481
KEGG Compound ID:
C07228
PubChem Compound ID:
5035
PubChem Substance ID:
148636

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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