Evaluation of Metformin Effect on the Fertility of Women Treated With 131I for Thyroid Cancer

Metformin will be used 3 times a day (3x500mg), starting in the first week with 1x1 tablet (1x500 mg for breakfast), in the second week, 2x1 tablet (500 mg for breakfast and 500 mg for dinner), from the 3rd week 3x1 tablet. (3x500mg with main meals). A gradual escalation of the dose is planned to the point of developing drug intolerance or toxicity that is unacceptable to the patient.

Patients qualified to receive 131I treatment