DANAZOL : used, Side effects, DOse, pharmacodynamic & mechanism of action....

Danazol

Brand name:- DANAZOL , LADOGAL , DANOGEN , GONABLOK, 50, 100 , 200mg cap.

Danazol is a synthetic steroid and pituitary gonadotropin inhibitor used in the treatment of endometriosis and symptomatic treatment of severe pain and tenderness associated with benign fibrocystic breasts.

Pharmacodynamic:-

Danazol is a derivative of the synthetic steroid ethisterone, a modified testosterone. It was approved by the U.S. Food and Drug Administration (FDA) as the first drug to specifically treat endometriosis, but its role as a treatment for endometriosis has been largely replaced by the gonadotropin-releasing hormone (GnRH) agonists. Danazol has antigonadotropic and anti-estrogenic activities. Danazol acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties.

Mechanism of action:-

Danazol has a complex mechanism of action, and is characterized as a weak androgen and anabolic steroid, a weak progestogen, a weak antigonadotropin, a weak steroidogenesis inhibitor, and a functional antiestrogen.Danazol is a synthetic steroid with multiple and diverse biologic effects. It exerts these effects by binding to steroid transport proteins in the circulation and to specific receptors in target tissues. Centrally, danazol inhibits gonadotropins, suppressing gametogenesis and steroidogenesis.

Used:-

This medication is used in women to treat pelvic pain and infertility due to a certain disorder (endometriosis) and also to treat breast pain/tenderness/nodules due to a certain breast condition (fibrocystic breast disease). It is also used in both men and women to prevent swelling of the abdomen/arms/legs/face/airway due to a certain congenital disease.

Side effects:-

Weight gain, Voice change, Acne, Breast size decreased, Oily skin, Baldness, Abnormal menstrual bleeding, Liver dysfunction, Facial hair growth.

Dose:- 200-600 mg/day , as directed by the physician.

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