Methamphetamine (USAN) (play /ˌmɛθæmˈfɛtəmiːn/), also known as metamfetamine (INN),[2] meth, ice, speed, crystal, glass, tik, N-methylamphetamine, methylamphetamine, and desoxyephedrine, is a psychostimulant of the phenethylamine and amphetamine class of psychoactive drugs.
Fighters battle in Manhattan's Union Square during a massive pillow fight on April 2, 2011 in New York City. Over 130 cities worldwide are participating in the fourth annual International Pillow Fight Day. (Photo by Mario Tama/Getty Images)
Singer Shania Twain is honored with the 2442nd Star on the Hollywood Walk Of Fame on June 2, 2011 in Hollywood, California. (Photo by Jason Merritt/Getty Images)
The Royal Air Force Red Arrows perform the “Gypo Split” during their first public aerobatic display since the tragic death of Flt Lt Jon Egging on September 2, 2011 in Chatsworth, England. (Photo by Christopher Furlong/Getty Images)
Participants run through the flames in the 2011 Spartacus Challenge on October 2, 2011 in Wolverhamton, England. (Photo by Dean Mouhtaropoulos/Getty Images)
Katy Perry attends the European premiere of Katy Perry: «Part Of Me 3D» at Empire Leicester Square on July 3, 2012 in London, England. (Photo by Mike Marsland)