 Chloroquine CQ is a well known, well tolerated medication that has been used for many years traditionally for arthritis, lupus, and malaria. It has anti-inflammatory properties but is often the drug of choice for arthritis and malaria due to its few side effects. Recently, laboratory investigations have proven that CQ may potentially have anti-cancer properties, by inhibiting a process which allows cancers such as breast cancer to continue to grow a process known as autophagy. Therefore, this study will look at how well CQ can inhibit the growth of breast cancers in patients while waiting for surgery. 