Nilandron is used to treat prostate cancer that has spread to other parts of the body.

Nilandron is for use in men who have undergone surgical castration.

Nilandron may also be used for purposes not listed in this medication guide.

You should not use Nilandron if you have severe liver disease or severe breathing problems.

Nilandron can cause serious lung problems. Call your doctor right away if you have chest pain, wheezing, dry cough, fever, and new or worsening shortness of breath.

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

Treatment with Nilandron should be started on the day of or on the day after surgical castration.

You may take Nilandron with or without food.

Do not stop taking this medication without first talking to your doctor.

Store at room temperature away from moisture and heat.

You should not use Nilandron if you are allergic to it, or if you have:

• severe liver disease; or

• severe breathing problems.

Tell your doctor if you have ever had:

• liver disease; or

• asthma or another lung disease.

Nilandron is not for use in women, and the effects of Nilandron during pregnancy or in breastfeeding women are unknown.

Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Nilandron may cause a delay in your ability to see in the dark after you have been in a lighted area. Be careful when driving at night, when entering a tunnel, and in similar situations. Wearing tinted glasses may help lessen this effect.

Drinking alcohol with Nilandron may cause dizziness, flushing (warmth, redness, or tingly feeling), or other unpleasant symptoms.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Nilandron may cause serious side effects. Call your doctor at once if you have:

• chest pain, wheezing, dry cough, fever;

• new or worsening shortness of breath;

• flu symptoms, pale skin, feeling tired; or

• liver problems--nausea, vomiting, loss of appetite, right-sided upper stomach pain, flu-like symptoms, dark urine, jaundice (yellowing of the skin or eyes).

Common side effects of Nilandron may include:

• hot flashes;

• dizziness;

• constipation;

• nausea or vomiting, loss of appetite;

• skin rash;

• decreased libido, impotence; or

• vision changes.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Other drugs may affect Nilandron, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.