Punch + energy. Ginseng + B vitamins. L-carnitine + taurine. Monster Energy Blend: glucose, taurine, Panax extract, caffeine, l-carnitine, Glucuronolactone, guarana extract, inositol, maltodextrin. Caffeine from All Sources: 80 mg per 8 fl oz serving (160 mg per can). Dub edition. Punch Monster is a new take on a classic. It's sweet like the punch you mixed yourself as a kid, but with a little carbonation for a smooth finish. Mad Dog is the original Punch Monster inspired by the streets. Clean lines, killer punch flavor and packed with a full load of our signature Monster energy blend. Mad Dog is a customized Monster formula inspired by Dub, the kings of customization. www.monsterenergy.com. Facebook. Instagram. Twitter. YouTube.