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What is the most important information I should know about testolactone?

Testolactone should not be used for the treatment of men with breast cancer or in patients with a history of allergic reactions to the drug.

What is testolactone?

Testolactone blocks the production of the hormone estrogen. Certain types of breast cancer require estrogen to grow.

Testolactone is used to treat some types of breast cancer.

Testolactone may also be used for purposes other than those listed in this medication guide.

What should I discuss with my healthcare provider before taking testolactone?

Testolactone should not be used for the treatment of men with breast cancer or in patients with a history of allergic reactions to the drug.

Testolactone is in the FDA pregnancy category C. This means that it is not known whether testolactone will be harmful to an unborn baby. Do not take this medication without first talking to your doctor if you are pregnant or could become pregnant during treatment. Testolactone passes into breast milk in small amounts and may affect a nursing baby. Do not take testolactone without first talking to your doctor if you are breast-feeding a baby.

How should I take testolactone?

Take testolactone exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each dose with a full glass (8 ounces) of water.

It is important to take testolactone regularly to get the most benefit.

Your doctor may want you to have breast exams (or to perform self breast exams), mammograms, blood tests, or other medical evaluations during treatment with testolactone to monitor progress and side effects.

Store testolactone at room temperature away from moisture and heat. Keep this product out of the reach of children.

What happens if I miss a dose?

Take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and take only the next regularly scheduled dose. Do not take a double dose of this medication unless your doctor directs otherwise.

What happens if I overdose?

Call an emergency room or a poison control center for advice if you suspect an overdose.

Symptoms of a testolactone overdose are unknown, but nausea, vomiting, seizures, tremor, or dizziness may be expected.

What should I avoid while taking testolactone?

There are no restrictions on food, beverages, or activity during treatment with testolactone unless otherwise directed by your doctor.