The invention relates to a sorption agent for removing endotoxins from a biological fluid, comprising a water-insoluble, porous carrier having a neutral hydrophobic surface wherein the surface of the carrier has an adsorptive coating made of polymyxin and albumin, wherein polymyxin and albumin are bonded to the surface of the carrier in a noncovalent manner. The invention further relates to a method for producing such a sorption agent. The sorption agent is used in extracorporeal blood purification, in particular in order to treat individuals, who have sepsis.
