Testolactone (Oral)

Testolactone is part of a group of medicines known as antineoplastics. It is used to treat certain cases of breast cancer in women.

You can get testolactone only with a prescription from your doctor.

It is very important that your doctor checks your progress at regular visits to ensure that this medicine is working properly and to look for unwanted effects.

In deciding to use a medicine, you and your doctor will weigh the risks of taking it against the benefits it may provide. Here are some important things to consider for this medicine:

Allergies

Inform your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also, let your healthcare professional know if you have any other allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, carefully read the label or package ingredients.

Geriatric

Many medicines have not been specifically studied in older adults. Therefore, it may not be known whether they work the same way or if they cause different side effects or problems in older people compared to younger adults. There is no specific information about the use of testolactone in elderly patients compared to other age groups.

Breast Feeding

There are no adequate studies in women to determine the risk to infants when using this medication during breastfeeding. Consider the potential benefits and risks before taking this medication while breastfeeding.

Interactions with Medicines

Some medicines should never be used together, while others can be used with caution even if there may be an interaction. In such cases, your doctor may need to adjust the dose or take other precautions. Inform your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicines.

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be taken around the time of eating food or certain types of food, as interactions may occur. Using alcohol or tobacco with some medicines may also lead to interactions. Talk to your healthcare professional about taking your medicine with food, alcohol, or tobacco.

Other Medical Problems

Having other medical problems may impact the use of this medicine. Be sure to tell your doctor if you have any other medical conditions, especially:

• Heart or kidney disease

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

Less common

• Numbness or tingling of fingers, toes, or face

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common

• Diarrhea
• Loss of appetite
• Nausea or vomiting
• Pain or swelling in feet or lower legs
• Swelling or redness of tongue

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

In the U.S.

• Teslac

Pharmacologic Class: Androgen

Use this medicine only as directed by your doctor. Do not use more or less of it, and do not use it more often than your doctor ordered. The exact amount of medicine you need has been carefully worked out. Taking too much may increase the chance of side effects, while taking too little may not improve your condition.

Testolactone sometimes causes nausea and vomiting. However, it may have to be taken for several weeks or months to be effective. Even if you begin to feel ill, do not stop using this medicine without first checking with your doctor. Ask your health care professional for ways to lessen these effects.

If you vomit shortly after taking a dose of testolactone, check with your doctor. You will be told whether to take the dose again or to wait until the next scheduled dose.

Dosing

The dose of this medicine 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 this medicine. 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.

Missed Dose

If you miss a dose of this medicine, 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.

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.