Basically the treatment of the cause as lecucopenia can be caused by many different conditions and may be related to side effects of some medications. You could have suppression of the bone marrow. The bone marrow is the factory for all blood cells - red, white, and platelets. Your fatigue could be all or partially related to your anemia. Are there medications for your condition? Sure. But first, you should see your physician or a blood doctor specialist (hematologist) to try to determine the cause for your leukopenia and anemia. It s always best to treat the underlying cause of a problem, if possible. Anemia, for example, may be caused by iron deficiency, vitamin B12, or folate deficiency, certain infections, hereditary problems, medication side effects, blood loss, and many other conditions. Once the cause or causes are identified and treated the anemia and low white count may well resolve. If not, there are medications to stimulate the production of new white blood cells called Neupogen, as well as a medication to stimulate the production of new red blood cells - Procrit. Nutrition? Just a well-balanced diet. Supplement with iron or vitamins if you re iron- or vitamin-deficient. This can be determined with a simple blood test. Is it life threatening? No, but you should see a qualified doctor for evaluation and specific treatment