What are the side effects of Neupogen?

Potential serious side effects of Neupogen include: rupture of your spleen, adult respiratory distress syndrome (ARDS), anaphylactic shock and a low level of platelets in your blood. Other side effects may include: bone pain, muscle pain, enlarged spleen, pain where you have received the injection, elevated alkaline phosphatase levels, elevated LDH (an enzyme in the body) and high uric acid in your blood. Nausea, abdominal pain, flank pain, headaches, anemia, low blood pressure and a high white blood cell count are also possible side effects.