Several new studies have discovered that most patients on cancer therapy are concurrently self-medicating with one or several complementary and alternative medicines (CAM) [11]. CAM is the term used for medical products and practices that are not part of standard medical care. Standard care is practiced by medical doctors and allied health professionals, such as nurses and physical therapists. "Complementary medicine" refers to treatments that are used with standard treatment such as is using acupuncture to help with side effects of cancer treatment. "Alternative medicine" refers to treatments that are used instead of standard treatment for example using a special diet to treat cancer instead of a method that a cancer specialist/doctor suggests. Standard treatments are based on scientific evidence from research studies, while CAM is based on claims made by CAM treatment providers. The consequence of most of these agents on the effectiveness and toxicity of regular anticancer treatment have not been considered, which poses a great threat to patients [11].