Product Description
INDICATIONS
Danazol is used to treat a number of different medical problems. These include:
Endometriosis;
Fibrocystic breast disease (cysts in the breasts);
Hereditary angioedema (swelling of the different parts of the body, such as abdomen or stomach, arms, legs, throat, skin, or sexual organs.
INSTRUCTIONS
It is very important that you use danazol only as directed by your doctor. Do not use more of it, do not use it more often, and do not use it for a longer time than your doctor ordered. To do so may cause unwanted side effects.
You must start taking danazol while you are having your monthly period.
In order for danazol to help you, it must be taken regularly for the full time of treatment as ordered by your doctor.
If you miss a dose of danazol, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
DOSAGE
The dose of danazol will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of danazol. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
For oral dosage form (capsules):
For treatment of mild endometriosis:
Adults—At first, 200 to 400 milligrams (mg), divided in two doses, for at least 3 to 6 months and up to 9 months. Your doctor may adjust your dose as needed and tolerated.
Children—Use and dose must be determined by your doctor.
For treatment of moderate to severe endometriosis:
Adults—At first, 800 milligrams (mg) per day, divided in two doses, for at least 3 to 6 months and up to 9 months. Your doctor may adjust your dose as needed and tolerated.
Children—Use and dose must be determined by your doctor.
For treatment of fibrocystic breast disease:
Adults—100 to 400 milligrams (mg) per day, divided in two doses. Your doctor may adjust your dose as needed and tolerated.
Children—Use and dose must be determined by your doctor.
For prevention of hereditary angioedema:
Adults—At first, 200 milligrams (mg) two or three times a day. Your doctor may adjust your dose as needed and depending upon your condition.
Children—Use and dose must be determined by your doctor.
STORAGE
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
SAFETY INFORMATION
It is very important that your doctor check your progress at regular visits to make sure that danazol does not cause unwanted effects. Blood tests may be needed to check for unwanted effects.
Using danazol while you are pregnant can harm your unborn baby. If you are a woman who can bear children, your doctor may give you a pregnancy test before you start using danazol to make sure you are not pregnant. Your birth control pills may not work as well while you are using danazol. You must use an effective form of birth control (e.g., a condom, a diaphragm, spermicide) to keep from getting pregnant. If you think you have become pregnant while using the medicine, tell your doctor right away.
Using danazol may cause irregular monthly periods or absence of menstrual period. If your regular monthly period does not begin within 60 to 90 days after you stop taking danazol, check with your doctor right away.
Check with your doctor right away if you are a female and have a larger clitoris (sexual organ), deepening of your voice, or unusual hair growth after taking danazol. Your doctor may advise you to stop taking the medicine so these side effects do not get worse.
Stop using danazol and check with your doctor if you have the following symptoms while taking danazol: blurred vision; change in the ability to see colors, especially blue or yellow; headache; nausea; or vomiting.
For patients with diabetes:
danazol may affect blood sugar levels. If you notice a change in the results of your blood or urine sugar tests, check with your doctor.
Before you have any medical tests, tell the medical doctor in charge that you are taking danazol. The results of some tests may be affected by danazol.
Danazol may rarely cause your skin to be more sensitive to sunlight than it is normally. Exposure to sunlight, even for brief periods of time, may cause a skin rash, itching, redness, or other discoloration of the skin, or a severe sunburn. Check with your doctor if this occurs.
Do not take other medicines unless they have been discussed with your doctor.
SIDE EFFECTS
Androgen like effects include weight gain, acne and seborrhea. Mild hirsutism, edema, hair loss, voice change, which may take the form of hoarseness, sore throat or of instability or deepening of pitch, may occur and may persist after cessation of therapy. Hypertrophy of the clitoris is rare.
Other possible endocrine effects include menstrual disturbances in the form of spotting, alteration of the timing of the cycle and amenorrhea. Although cyclical bleeding and ovulation usually return within 60-90 days after discontinuation of therapy with Danazol, persistent amenorrhea has occasionally been reported.
Flushing, sweating, vaginal dryness and irritation and reduction in breast size, may reflect lowering of estrogen. Nervousness and emotional lability have been reported. In the male a modest reduction in spermatogenesis may be evident during treatment. Abnormalities in semen volume, viscosity, sperm count, and motility may occur in patients receiving long-term therapy.
Hepatic dysfunction, as evidenced by reversible elevated serum enzymes and/or jaundice, has been reported in patients receiving a daily dosage of Danazol of 400 mg or more. It is recommended that patients receiving Danazol be monitored for hepatic dysfunction by laboratory tests and clinical observation. Serious hepatic toxicity including cholestatic jaundice, peliosis hepatis, and hepatic adenoma have been reported.
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