An anesthesia catheter tube made of polymers for use in the field of regional anesthesia, formed of a layer composite of polyamide and polyurethane, wherein the inner side facing the lumen is formed of a polyamide layer and the outer side is formed of a polyurethane layer, wherein the layer composite is a co-extrusion and wherein the layer composite has a layer thickness distribution of the PA inner layer to the PUR outer layer as 50:50 to 70:30.
