Type of medicine: antineoplastic (anticancer)
Generic and brand names: testolactone, oral; Teslac
This medicine is taken by mouth to treat some forms of breast cancer in women.
This medicine should not used to treat breast cancer in men.
Before taking this medicine, tell your healthcare provider if you have ever had:
Females of childbearing age: Talk with your healthcare provider if you are pregnant or plan to become pregnant. It is not known whether this medicine will harm an unborn baby. Do not breast-feed while taking this medicine without your healthcare provider's approval.
Check the label on the medicine for directions about your specific dose. Take this medicine exactly as directed by your healthcare provider. Do not stop taking it until your healthcare provider tells you to. If you are taking other medicines, take them exactly as directed.
If you miss a dose, contact your healthcare provider.
If you or anyone else has intentionally taken too much of this medicine, call 911 or go to the emergency room right away. If you pass out, have seizures, weakness or confusion, or have trouble breathing, call 911. If you think that you or anyone else may have taken too much of this medicine, call the poison control center. Do this even if there are no signs of discomfort or poisoning. The poison control center number is 800-222-1222.
Symptoms of an acute overdose may include: nausea, vomiting, seizures, tremors, dizziness.
You will need to have blood tests regularly to see how this medicine affects you. Keep all appointments for these tests.
This medicine is a controlled substance. It is illegal to give this medicine to anyone else.
If you need emergency care, surgery, or dental work, tell the healthcare provider or dentist you are taking this medicine.
Along with its needed effects, your medicine may cause some unwanted side effects. Some side effects may be very serious. Some side effects may go away as your body adjusts to the medicine. Tell your healthcare provider if you have any side effects that continue or get worse.
Life-threatening (Report these to your healthcare provider right away). If you cannot reach your healthcare provider right away, get emergency medical care or call 911 for help): Allergic reaction (hives; itching; rash; trouble breathing; chest pain or tightness in your chest; swelling of your lips, tongue, and throat).
Serious (contact your healthcare provider right away): Numbness or tingling in your fingers, toes, or face.
Other: Lightheadedness; loss of appetite; nausea; vomiting; hair loss; diarrhea; pain or swelling in feet, legs, or tongue.
When you take this medicine with other medicines, it can change the way this or any of the other medicines work. Nonprescription medicines, vitamins, natural remedies, and certain foods may also interact. Using these products together might cause harmful side effects. Talk to your healthcare provider if you are taking:
If you are not sure if your medicines might interact, ask your pharmacist or healthcare provider. Keep a list of all your medicines with you. List all the prescription medicines, nonprescription medicines, supplements, natural remedies, and vitamins that you take. Be sure that you tell all healthcare providers who treat you about all the products you are taking.
Store this medicine at room temperature. Keep the container tightly closed. Protect it from heat, high humidity, and bright light.
This advisory includes selected information only and may not include all side effects of this medicine or interactions with other medicines. Ask your healthcare provider or pharmacist for more information or if you have any questions.
Ask your pharmacist for the best way to dispose of outdated medicine or medicine you have not used. Do not throw medicine in the trash.
Keep all medicines out of the reach of children.
Do not share medicines with other people.
