Energy + mango. With other natural flavors. 230 calories per bottle. Consumer comments? 1-866-228-3666. Killer Taipan: When you want the energy to strike when the time is right and leave your mark, you need the Venom of Killer Taipan. Venom packs a powerful payload of strong, fierce energy - taurine, guarana, l-carnitine, ginseng and B vitamins. Take on the world and own it! Please recycle. 160 mg caffeine per 16 fl oz serving. Energy Blend Per 16 fl oz: 4943 mg caffeine, taurine, guarana extract, l-carnitine, ginseng extract, inositol, maltodextrin.