Teslac
Longer Tamoxifen Use Helps Breast Cancer Survival »
"Dec. 5, 2012 -- Doubling the time that breast cancer patients take tamoxifen cuts the risk that the cancer will come back and further lowers the risk of dying of the disease, a new study shows.
The study is expected to change the way"...
Read the Longer Tamoxifen Use Helps Breast Cancer Survival article »
Teslac
(Generic versions may still be available.)
TESLAC
(testolactone) Tablets, USP
DRUG DESCRIPTION
TESLAC® (testolactone tablets, USP) is available for oral administration as tablets providing 50 mg testolactone per tablet. Testolactone is a synthetic antineoplastic agent that is structurally distinct from the androgen steroid nucleus in possessing a six-membered lactone ring in place of the usual five-membered carbocyclic D-ring. Testolactone is chemically designated as 13-hydroxy-3-oxo-13,17-secoandrosta-1,4-dien-17-oic acid δ-lactone. Graphic formula:
![]() |
Inactive ingredients: calcium stearate, cornstarch, gelatin, and lactose. Testolactone is a white, odorless, crystalline solid, soluble in ethanol and slightly soluble in water.
Last reviewed on RxList: 6/30/2009
This monograph has been modified to include the generic and brand name in many instances.
Additional Teslac Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Breast Cancer
Find support and advances in treatment.







