Stilbestrol is a synthetic estrogen hormone that was once commonly prescribed to treat various conditions such as menopausal symptoms, breast cancer, and prostate cancer. However, due to its adverse effects, it is no longer used as a medication in many countries. Synonyms for stilbestrol include diethylstilbestrol, DES, oestrogen stibrol, stilboestrol, and hexestrol. While these terms may differ slightly in their chemical structure and use, they are all related to stilbestrol and share some similarities in their effects. It is important to consult a healthcare provider before taking any medication or hormone replacement therapy to ensure safety and effectiveness.