A 39-year-old female is being treated for breast cancer in-patient on your medsurge unit. It is determined that her medication should be altered, which of the following medications would be indicated as alternative treatment of her breast cancer? interleukin 2 (Proleukin) Dronabinal (Marinol) tamoxifen (Novaldex) methotrexate (Mexate, Rheumatrex)