Arimidex 1mg Tablet is used alone or with other treatments, such as surgery or radiation, to treat early breast cancer in postmenopausal women. It can also be used as the first-line treatment of advanced breast cancer that has spread within the breast or to other areas of the body. Arimidex 1mg Tablet belongs to a class of drug called aromatase inhibitors, which decreases the amount of estrogen in the body. It should be taken with or without food, but take it at the same time every day to get the most benefit. It should be taken as your doctor’s advice. The dose and how often you take it depends on what you are taking it for. Your doctor will decide how much you need to improve your symptoms. Swallow the tablets whole with a drink of water. The most common side effects of the medicine include hot flushes, nausea, rashes, joint pain, osteoporosis, and weakness. If these bother you or appear serious, let your doctor know. There may be ways of reducing or preventing them. Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works. Tell your doctor if you are pregnant or breastfeeding. Your doctor may perform some blood tests to check for vitamin D level or bone density.