Why a popular breast cancer drug may be less effective for some Africans
A gene mutation appears to impair tamoxifen’s ability to tackle the disease
![Some round white pills sit beside a pill bottle labeled tamoxifen, which is a popular breast cancer drug.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/11/110723_si_tamoxifen_feat.jpg?fit=1030%2C580&ssl=1)
Tamoxifen, a breast cancer drug, helps derail a strategy that cancer cells exploit to grow.
Bill Branson/National Cancer Institute