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Testolactone is a synthetic steroidal drug used to treat advanced breast cancer in postmenopausal women. It works by blocking the production of estrogen, which can help slow the growth of certain types of breast cancer.

Common side effects of testolactone include nausea, vomiting, loss of appetite, weight loss, fatigue, headache, dizziness, and hot flashes. Other more serious side effects may include liver damage, high blood sugar, and changes in blood pressure.

Brand names associated with testolactone include Teslac, Testolactone, and Testolactone-A.

  • testolactone
  • androgen
  • antineoplastic
  • aromatase inhibitor
  • sex hormone
  • sport doping

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