Is diethylstilbestrol tablets banned? Diethylstilbestrol tablets are a commonly used hormone replacement therapy, often used to relieve symptoms of menopause and after breast cancer surgery, such as hot flashes, insomnia, and depression. But since 2002, some countries have banned the drug after diethylstilbestrol tablets were found to increase the risk of breast and ovarian cancer. So, is diethylstilbestrol tablets banned? What issues should I pay attention to when using this medicine? This article will elaborate on the following four aspects. Aspect 1: Diethylstilbestrol