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Nilutamide

Warning

Rarely, nilutamide has caused severe (sometimes fatal) lung problems (interstitial pneumonitis). Get medical help right away if you develop symptoms of lung problems (such as cough, trouble breathing, chest pain, fever). Lung problems can happen at any time while you are taking nilutamide, but they occur most often during the first 3 months of treatment. Your doctor will tell you whether to stop or continue nilutamide.

Your doctor may have you get a chest X-ray and breathing tests before you start nilutamide.

Precautions

Before taking nilutamide, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: lung disease (such as asthma, chronic obstructive pulmonary disease-COPD, emphysema), liver problems.

This drug may rarely make you dizzy or drowsy or cause vision changes. Alcohol or marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness or clear vision until you can do it safely. You may also develop intolerance to alcohol while taking this medication. Avoid alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Nilutamide should not be used by women, especially during pregnancy or breastfeeding. It may harm an unborn or breastfeeding baby. Consult your doctor for more details.

Side Effects

See also Warning section.

Because nilutamide may be used with other medications, the side effects may be due to any one medicine or the combination of medications. Hot flashes, sweating, dizziness, loss of sexual interest/ability, vision changes (such as difficulty seeing when moving into the dark or light, changes in color vision), stomach pain, constipation, nausea, signs of alcohol intolerance (such as flushing, tiredness) dry skin, increased sensitivity to touch/pain, and loss of body hair may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Rarely, nilutamide has caused severe (sometimes fatal) liver problems. Get medical help right away if you develop symptoms of liver problems (such as nausea/vomiting that doesn't stop, loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine). Liver problems can happen at any time while taking nilutamide, but they occur most often during the first 3-4 months of treatment. Your doctor will tell you whether to stop or continue nilutamide. Your doctor will monitor your liver function with blood tests before you start and while you are taking nilutamide. Keep all medical and lab appointments.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

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