Fulphila (pegfilgrastim-jmdb) is used to treat neutropenia. Fulphila is a biosimilar for neulasta (pegfilgrastim). Biosimilars are biologic drugs that are similar to the original medication with no meaningful differences in effectiveness or safety. Fulphila may be covered by your Medicare or insurance plan, but some pharmacy coupons or cash prices could help offset the cost. Get Fulphila for as low as $2,008.71, which is 21% off the average retail price of $2,554.61 for the most common version, by using a GoodRx coupon.