Stacker 2

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Stacker 2 is an energy supplement company developed by NVE Pharmaceuticals in 1997. It got its name from "Stacking" which was what bodybuilders routinely engaged in by stacking and ingesting Ephedrine HCL, caffeine and aspirin to acquire more energy for a workout. It gained popularity in the early 2000s using NASCAR drivers such as Kenny Wallace in their advertisements.