EstroGel

EstroGel
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INN	Estradiol
Drug class
Routes of administration	Transdermal
Pregnancy category
Bioavailability
Metabolism
Elimination half-life
Excretion
Legal status	Rx-only
CAS Number
PubChem
DrugBank
ChemSpider
KEGG

EstroGel is a transdermal gel containing estradiol, a form of the female hormone estrogen. It is primarily used in hormone replacement therapy (HRT) for menopause symptoms such as hot flashes, vaginal dryness, and bone loss. EstroGel is applied directly to the skin, which allows estradiol to be absorbed through the skin into the bloodstream.

Indications

EstroGel is indicated for the treatment of menopausal symptoms in women who have an intact uterus. It is also used for the prevention of osteoporosis in postmenopausal women. The gel is typically applied once daily to clean, dry, unbroken skin on the arms, shoulders, or abdomen.

Mechanism of Action

EstroGel works by replacing the estrogen that is normally produced by the ovaries. Estrogen is a vital hormone that regulates various bodily functions, including reproductive and sexual health. As women approach menopause, the natural production of estrogen decreases, leading to symptoms associated with estrogen deficiency. By applying EstroGel, the estradiol is absorbed through the skin, thereby increasing estrogen levels in the body and alleviating menopausal symptoms.

Side Effects

Common side effects of EstroGel include skin irritation at the application site, headache, breast tenderness, and nausea. More serious side effects may include an increased risk of blood clots, stroke, heart attack, and breast cancer. Women using EstroGel are advised to have regular check-ups with their healthcare provider to monitor for these risks.

Contraindications

EstroGel should not be used by women who are pregnant, planning to become pregnant, or breastfeeding. It is also contraindicated in women with known or suspected estrogen-dependent neoplasia, active or recent arterial thromboembolic disease (such as stroke and heart attack), liver dysfunction or disease, and unexplained vaginal bleeding.

Administration

The gel is applied once daily at the same time each day. It is important to follow the application instructions provided with the medication to ensure optimal absorption and effectiveness. The site of application should be rotated to reduce the risk of skin irritation.

See Also

• Hormone replacement therapy
• Menopause
• Estradiol (medication)

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