Which GnRH agonist is commonly used for the treatment of endometriosis?

Which GnRH agonist is commonly used for the treatment of endometriosis?

• A. Leuprolide
• B. Nafarelin
• C. Goserelin
• D. Triptorelin

Answer: (B)

Leuprolide is commonly used for the treatment of endometriosis due to its mechanism of action as a GnRH agonist. It works by initially stimulating the pituitary gland to release luteinizing hormone (LH) and follicle-stimulating hormone (FSH), which increases estrogen production. However, this effect is temporary, and with continuous administration, leuprolide causes downregulation of the GnRH receptors, leading to decreased LH and FSH release, resulting in reduced estrogen levels. Lower estrogen levels help alleviate the symptoms of endometriosis by shrinking endometrial tissue and reducing pain.

While nafarelin, goserelin, and triptorelin are also GnRH agonists and are used in managing endometriosis, leuprolide is the most commonly referenced and used in this context, making it the appropriate choice. Each of these medications has its specific applications and formulations, but leuprolide's broad recognition and extensive clinical use in the treatment of endometriosis sets it apart.