What is this medicine?
DANAZOL (DA na zole) is used in women to treat endometriosis and the symptoms of fibrocystic breast disease. This medicine may also be used in men and women to prevent serious allergic reactions known as angioedema.
How should I use this medicine?
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take this medicine with food to decrease stomach upset. Take your doses at regular intervals. Do not take your medicine more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in vision
decrease in breast size
hair loss or unusual hair growth
irregular vaginal bleeding, spotting
nausea, vomiting, stomach pain
redness, blistering, peeling or loosening of the skin, including inside the mouth
unusual bleeding or bruising
unusual swelling of feet or ankles
unusually weak or tired
yellowing of the skin or eyes
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
What may interact with this medicine?
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications:
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Where should I keep my medicine?
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
unusual vaginal bleeding
an unusual or allergic reaction to danazol, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
What should I watch for while using this medicine?
Check with your doctor or health care professional if you are a female patient and notice any changes in your voice, decrease in breast size, or if hair starts growing on your face.
This medicine should not be used in pregnancy. You should use a non-hormonal form of birth control while on this medicine. If you become pregnant or think you may be pregnant while you are taking this medicine, you should stop taking this medicine and contact your doctor or health care professional. This medicine may cause risk to a female fetus.
This medicine can affect your menstrual cycle and you may stop having menstrual periods. These will return to normal within 2 to 3 months after you stop taking this medicine.