Lonicerae Flos Extract is extracted from Lonicerae flos, the flower bud of Lonicera macranthoides Hand.-Mazz., Lonicera hypoglauca Miq., Lonicera confusa DC., or Lonicera fulvotomentosa Hsu et S. C. Cheng. Lonicerae flos is a traditional Chinese medicine used in the treatment of inflammatory and infectious diseases. Lonicerae flos extract increases survival rates of cecal ligation and puncture (CLP)-induced septic rats.