Fluorouracil Cream USP contains 5% fluorouracil in a vanishing cream base consisting of methylparaben, polysorbate 60, propylene glycol, propylparaben, purified water, stearyl alcohol, and white petrolatum. Chemically, fluorouracil is a 5-fluoro-2,4(1 H,3 H)-pyrimidinedione. It is a white to pr...