The 36-year-old underwent surgery and radiation treatment after her diagnosis in 2016, but is now required to take cancer-preventing medication called Tamoxifen for the next decade.
The drug works by blocking the effects of oestrogen in the breast tissue, which helps to slow down or stop the growth of cancer cells that require the hormone.
On Sunday, which was a scorching 41 degrees in her hometown of Sydney, Roxy took to Instagram to share one of the frustrating side effects of the medication.
“The joys (not) of living on tamoxifen – when everyone thinks they are hot you are literally 25 degrees hotter and cannot regulate your temp,” she wrote.
Aside from hot flushes, side effects of Tamoxifen can also include irregular periods, mood swings, depression, weight gain, blood clots and endometrial cancer.
Despite these downsides, studies have shown that it's use after surgery for early-stage breast cancer reduces 15-year risks of recurrence and death.
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