Welcome to Arimidex.net, this website is an international information resource for healthcare professionals with an interest in breast cancer treatment. This website is not intended to replace the advice of a qualified healthcare professional. If you are in the US you should visit Arimidex US. If you are in the UK you should visit the UK site. If you are a patient you should visit the Patient site. If you are a journalist you should visit the AstraZeneca Press Office. This website is provided by AstraZeneca.