Methamphetamine was made in 1919 in Japan. It went into wide use in World War II to keep the troops awake. In the 1950s, it was prescribed as a diet aid and was used to fight depression. In the 1960s the availability for injectables increased. The US made it illegal in the 1970s.
SHORT AND LONG TERM EFFECTS Short term loss of appetite, increased heart rate, dilation of pupils, disturbed sleeping patterns, nausea, bizarre and sometimes erratic behavior, hallucinations, convulsions and seizures.