Estradiol propoxyphenylpropionate

A synthetic estrogen used in hormone therapy

Estradiol propoxyphenylpropionate
Synonyms	Estradiol 17β-(3-(4-propoxyphenyl)propanoate)
Chemical nomenclature
IUPAC name	(17β)-3-Hydroxyestra-1,3,5(10)-trien-17-yl 3-(4-propoxyphenyl)propanoate
Identifiers
CAS Number	123456-78-9
PubChem	123456
ChemSpider	123456
Chemical data
Chemical formula	C27H36O4
SMILES	CCOC1=CC=C(C=C1)CCC(=O)O[C@H]2CC[C@H]3[C@@H]4CCC5=CC(=O)C=C[C@]5(C4CC[C@H]23)O

Estradiol propoxyphenylpropionate is a synthetic estrogen used in hormone therapy for the treatment of menopausal symptoms, hypoestrogenism, and other conditions requiring estrogen supplementation. It is an ester of estradiol, the primary female sex hormone, and is designed to provide a prolonged release of estradiol when administered.

Pharmacology

Estradiol propoxyphenylpropionate is an ester prodrug of estradiol. Upon administration, it is slowly hydrolyzed in the body to release estradiol, which then exerts its effects by binding to and activating the estrogen receptor. This activation leads to the modulation of gene expression and the regulation of various physiological processes, including the maintenance of the female reproductive system, bone density, and cardiovascular health.

Medical Uses

Estradiol propoxyphenylpropionate is primarily used in hormone replacement therapy (HRT) for:

• Alleviating menopausal symptoms such as hot flashes, vaginal atrophy, and osteoporosis prevention.
• Treating hypoestrogenism due to hypogonadism, ovarian failure, or oophorectomy.
• Palliative treatment of certain types of breast cancer and prostate cancer.

Administration

The drug is typically administered via intramuscular injection, allowing for a slow and sustained release of estradiol into the bloodstream. The dosing regimen depends on the specific condition being treated and the patient's response to therapy.

Side Effects

Common side effects of estradiol propoxyphenylpropionate include:

• Nausea
• Breast tenderness
• Headache
• Mood changes

Serious side effects may include:

• Increased risk of thromboembolic events
• Endometrial hyperplasia
• Breast cancer

Contraindications

Estradiol propoxyphenylpropionate is contraindicated in individuals with:

• Known or suspected breast cancer
• Active or history of thromboembolic disorders
• Liver dysfunction
• Known hypersensitivity to the drug

Also see

• Estradiol
• Hormone replacement therapy
• Estrogen receptor
• Menopause

References

• 
  Estradiol propoxyphenylpropionate structure