Stacker 2 is an energy supplement company developed by NVE Pharmaceuticals in 1997.
It gained popularity in the early 2000s using WWE wrestlers, NASCAR drivers such as Kenny Wallace[1] and other celebrities in their advertisements.
In August 2005, NVE Pharmaceuticals was sued by a woman that suffered a hemorrhagic stroke.
[4] In June 2006, NVE Pharmaceuticals sued Joseph R. Gannascoli because he wasn't doing enough to promote Stacker 2.
[6] In 2016, it lost a $22 million lawsuit against the Plaintiff 5-Hour Energy which accused Stacker 2 of infringement on its trademark.