Danazol (Systemic)

Brand Names : Danocrine, Cyclomen

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

For both females and males

Less common

Acne; dark-colored urine; increased oiliness of hair or skin; muscle cramps or spasms; swelling of feet or lower legs; unusual tiredness or weakness; weight gain (rapid)

Rare

Bleeding gums; bloating, pain or tenderness of abdomen or stomach; blood in urine; burning, numbness, pain, or tingling in all fingers except the smallest finger; changes in vision; chest pain; chills; complete or partial numbness or weakness on one side of body; cough; coughing up blood; diarrhea; difficulty in speaking; difficulty in swallowing; discharge from nipple; eye pain; fast heartbeat; fever; headache; hives or other skin rash; joint pain; light-colored stools; loss of appetite (continuing); loss of muscle coordination; more frequent nosebleeds; muscle aches; nausea; purple- or red-colored, or other spots on body or inside the mouth or nose; restlessness; shortness of breath; sore throat; sweating; tingling, numbness, or weakness in legs, which may move upward to arms, trunk, or face; unusual bruising or bleeding; unusual tiredness, weakness, or general feeling of illness; vomiting; yellow eyes or skin

For females only

More common

Decrease in breast size; irregular menstrual periods; weight gain

Rare

Enlarged clitoris; hoarseness or deepening of voice; unnatural hair growth

For males only

Rare

Changes in semen; decrease in size of testicles

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

For both females and males

Less common

Flushing or redness of skin; mood or mental changes; nervousness

Rare

Increased sensitivity of skin to sunlight

For females only

Less common

Burning, dryness, or itching of vagina; vaginal bleeding

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.