Generic Name: Danazol (DA na zole)
Medically reviewed on July 4, 2018
- This medicine may cause harm to the unborn baby if you take it while you are pregnant.
- Do not take danazol if you are pregnant. A pregnancy test will be done to show that you are NOT pregnant before starting danazol.
- Birth control pills and other hormone-based birth control may not work as well to prevent pregnancy. Use some other kind of birth control also like a condom when taking danazol.
- If you are pregnant or you get pregnant while taking danazol, call your doctor right away.
- Blood clots have happened with danazol. Sometimes, blood clots like stroke have been deadly. Call your doctor right away if you have chest, arm, back, neck, or jaw pain or pressure; coughing up blood; numbness or weakness on 1 side of your body, trouble speaking or thinking, change in balance, or change in eyesight; shortness of breath; or swelling, warmth, or pain in the leg or arm.
- Very bad and sometimes deadly liver problems have happened with danazol. Call your doctor right away if you have signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Raised pressure in the brain has happened with danazol. This can cause long lasting loss of eyesight and sometimes death. Call your doctor right away if you have a bad headache, dizziness, upset stomach or throwing up, or seizures. Call your doctor right away if you have weakness on 1 side of the body, trouble speaking or thinking, change in balance, or change in eyesight.
Uses of Danazol:
- It is used to treat endometriosis.
- It is used to treat fibrocystic breast disease.
- It is used to treat swelling attacks in people with hereditary angioedema (HAE).
- It may be given to you for other reasons. Talk with the doctor.
What do I need to tell my doctor BEFORE I take Danazol?
- If you have an allergy to danazol or any other part of danazol.
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have any of these health problems: An androgen-dependent tumor, genital cancer, heart disease, kidney disease, liver disease, or porphyria.
- If you have blood clots or have had blood clots in the past.
- If you have unexplained vaginal bleeding.
- If you are breast-feeding. Do not breast-feed while you take danazol.
This is not a list of all drugs or health problems that interact with danazol.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take danazol with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Danazol?
- Tell all of your health care providers that you take danazol. This includes your doctors, nurses, pharmacists, and dentists.
- If you have high blood sugar (diabetes), you will need to watch your blood sugar closely.
- Have your blood pressure checked often. Talk with your doctor.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- This medicine may affect certain lab tests. Tell all of your health care providers and lab workers that you take danazol.
- Do not take danazol for longer than you were told by your doctor.
- This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to have your blood work checked more closely while taking danazol with your other drugs.
- This medicine may lower sperm counts in males. Talk with the doctor.
How is this medicine (Danazol) best taken?
Use danazol as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take with or without food but take the same way each time. Always take with food or always take on an empty stomach.
What do I do if I miss a dose?
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Shortness of breath, a big weight gain, or swelling in the arms or legs.
- Very bad dizziness or passing out.
- Very nervous and excitable.
- Mood changes.
- A lump in the breast or breast soreness.
- Orgasm with less or no semen.
- For women, no period.
What are some other side effects of Danazol?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Hair loss.
- Emotional ups and downs.
- Weight gain.
- Pimples (acne).
- For females, a deep voice, facial hair, pimples, or period changes.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Danazol?
- Store at room temperature.
- Protect from light.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about danazol
- Danazol Side Effects
- During Pregnancy
- Dosage Information
- Drug Images
- Drug Interactions
- Support Group
- Pricing & Coupons
- En Español
- 6 Reviews
- Drug class: antigonadotropic agents
Other brands: Danocrine