A progestogen drug used to treat certain types of breast cancer and uterine cancer (see uterus, cancer of). It may be prescribed when a tumour cannot be removed by surgery, if a tumour has recurred after surgery, or when other anticancer drugs or radiotherapy prove ineffective.
Possible adverse effects of megestrol include swollen ankles, weight gain, nausea, dizziness, headache, rash, and, rarely, raised blood calcium level.
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