IL1B and colitis: Rosmarinus officinalis L. oil, mainly constituted by 1,8-cineole along with α-pinene, camphor and p-cymene was only able to reduce the pro-inflammatory IL-6 production in the mouse colon in which colitis was induced by 2,4,6-trinitrobenzene sulphonic acid (TNBS), not suppressing IL-1β [110].