Danazol Common Info
Danazol is used in women to treat pelvic pain and infertility due to a certain uterus 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 (hereditary angioedema).
Danazol is an androgen similar to testosterone. For the treatment of endometriosis and fibrocystic breast disease, it works by decreasing the amount of hormones made by the ovaries. These hormones usually make the conditions worse. For the treatment of angioedema, danazol helps to increase the amount of a certain protein in your body's defense system (immune system).
Using of Danazol
Take Danazol by mouth, usually twice daily or as directed by your doctor. You may take Danazol with or without food, but it is important to choose one way and take Danazol the same way with every dose.
The dosage of Danazol is based on your medical condition and response to treatment.
Use Danazol regularly to get the most benefit from it. To help you remember, take it at the same times each day.
Tell your doctor if your condition does not improve or if it worsens.
Danazol Side Effects
Weight gain, acne, flushing, sweating, voice changes (hoarseness, change in pitch), abnormal growth of body hair (in women), vaginal dryness/irritation, or decreased breast size may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed Danazol because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using Danazol do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects occur: swelling hands/ankles/feet, menstrual changes (such as spotting, missed periods), mental/mood changes (such as nervousness, mood swings).
A very serious allergic reaction to Danazol is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
Precautions for Danazol
Before taking danazol, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Danazol may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using Danazol, tell your doctor or pharmacist your medical history, especially of: heart/blood vessel disease (such as coronary artery disease, stroke), high blood pressure (hypertension), diabetes, high cholesterol levels, breast cancer, liver disease, kidney disease, seizures, migraine headaches, unusual vaginal bleeding, certain blood disorders (porphyria, polycythemia), prostate cancer.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Danazol may affect the sperm. Consult your doctor for more details.
Danazol must not be used during pregnancy. It may harm the unborn baby. If you become pregnant or think you may be pregnant, tell your doctor immediately. (See also Warning section.)
It is unknown if Danazol passes into breast milk. Because of the possible risk to the infant, breast-feeding while using Danazol is not recommended. Consult your doctor before breast-feeding.
Danazol May Interacat With
The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring.
To help your doctor and pharmacist give you the best care, be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with Danazol. While using Danazol, do not start, stop, or change the dosage of any other medicines you are using without your doctor's approval.
Some products that may interact with Danazol include: "blood thinners" (such as warfarin), carbamazepine, certain "statin" cholesterol medications (lovastatin, simvastatin), cyclosporine, tacrolimus.
Danazol may interfere with certain laboratory tests (including blood levels of male hormones such as testosterone), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use Danazol.
This document does not contain all possible interactions of Danazol. Keep a list of all the products you use. Share this list with your doctor and pharmacist to lessen your risk for serious medication problems.