Turn up your energy with AMP. Only AMP has MDX5™, taurine, ginseng, B-vitamins, guarana and maltodextrin, a complex carb. All in a great-tasting citrus fusion. AMP is a new energy drink from Mountain Dew. Made with regular Mountain Dew's base flavor formula, AMP combines Taurine, B vitamins, Ginseng and Guarana with simple and complex carbohydrates such as maltodextrin — all in a great-tasting fusion of citrus flavors.