#
Testolactone
  • Treatments
  • Breast Cancer
  • Palliative

Testolactone (Oral)

Medically reviewed by Drugs.com. Last updated on Mar 19, 2022.

Commonly used brand name(s)

In the U.S.

  • Teslac

Pharmacologic Class: Androgen

Uses for testolactone

Testolactone belongs to the general group of medicines called antineoplastics. It is used to treat some cases of breast cancer in females.

Testolactone is available only with your doctor's prescription.

Before using testolactone

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For testolactone, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to testolactone or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Geriatric

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

Breastfeeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Interactions with medicines

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Interactions with food/tobacco/alcohol

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Other medical problems

The presence of other medical problems may affect the use of testolactone. Make sure you tell your doctor if you have any other medical problems, especially:

  • Heart or kidney disease

Proper use of testolactone

Use testolactone 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 testolactone 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...