- Tilmicosin and tylosin have anti-inflammatory properties via modulation of COX-2 and iNOS gene expression and production of cytokines in LPS-induced macrophages and monocytes. Cao, X.Y., Dong, M., Shen, J.Z., Wu, B.B., Wu, C.M., Du, X.D., Wang, Z., Qi, Y.T., Li, B.Y. Int. J. Antimicrob. Agents (2006)