Goering was addicted to morhpine, he had a special gold syringe he would use to inject it many times a day (according to various sources). He had been hospitalized for rheumatism before, and given morphine for that, and then when he was shot in the balls in 1923, he began using morphine daily to dull that understandable pain. Then followed addiction, again, according to various history sources out there. He broke is addicting and cold turkey quit while awaiting trial. Several Americans involved in Goering's questioning/etc said it was remarkable how he was able to so quickly recover from a long period of addiction.
the Germans largely abandoned amphetamines by 1941, with German officials reclassifying Pervitin as a dangerously addictive narcotic.
That's what I've read from several sources too, prior to that, it was widely used throughout German society, and not just the military. Prior to this, in the mid and later 1930s, there was another drug called, Volksdroge another meth/stimulant which was widespread as well.
From Oxford's social history of medicine:
This article is an analysis of the use of Pervitin (metamphetamine) in National Socialist Germany after the introduction of the drug in 1938. Whereas earlier studies have focused on the supply of the drug, this study focuses on demand. Both an iatrogenic and a ‘Nazigenic’ interpretation of the history of metamphetamine use are reviewed. It is concluded that the use of Pervitin in the Third Reich was not only ‘pushed’ on the population by the Nazi political and military authorities, but also became endemic in German society as it addressed the needs and problems of various users including employees, housewives, and soldiers. The drug was a cultural ambiguity of life in Nazi Germany, integrated in everyday life, notwithstanding its regulation by drug laws.
I know the USAF used some sort of "up" pill for a while in recent memory, the F16 pilots that were mistakenly cleared to drop bombs near Kandahar back in the early 2000s on some Canadian troops, had brought up in their defense that they'd be ordered to take the pills, and that they had very negatively affected them, and their decision making process/ooda loop/etc.