who created methamphetamine+6Methamphetamine was first synthesized by Japanese chemists. The initial synthesis occurred in 1893, and the crystalline, more potent form was developed in 1919. The individuals involved are:Nagai Nagayoshi, a Japanese organic chemist and pharmacologist, first synthesized methamphetamine from the precursor chemical ephedrine in 1893. Nagayoshi had also previously identified and isolated ephedrine, the active ingredient in the Ephedra plant, in 1885.Akira Ogata, another Japanese chemist, developed a more efficient method of creating the drug's crystalline powder form in 1919. Initially, the substance had various medical applications, such as treating narcolepsy and asthma. It was also used by various military forces during World War II to enhance endurance and alertness among troops. Over time, the high potential for abuse and severe health risks associated with the substance led to strict international controls and its classification as a dangerous controlled substan Beloud