I’m not going to lie. the Neupogen shots can cause bone pain. It’s not pleasant. I have percocet to take, and have had a few today. This bone pain isn’t like anything I’ve felt before, except when I had those 10 days of Neupogen shots before. It’s the result of the crowding of the bone marrow. One nurse told me that this is the kind of pain experienced by some leukiemia patients when their white cells are proliferating out of control.