Hitler's drug use is a topic that bears careful examination in a proper context. While there's certainly more to say, u/commispaceinvader discussed this in an earlier response that you might like to review while you wait for fresh responses to your query:

"Hitler was a gibbering super junkie, whose veins collapsed after thousands of injections..." These are historian, Norman Ohler's words. I doubt they're at all true but humour me. How prevalent was recreational drug use amongst the German people and the Nazi elite?

The same user also offers an instructive and clear-sighted take on recent claims regarding the extent of German use of methamphetamines in the Word War II period:

Documentary claimed Nazi soldiers were hooked on methamphetamine's to make them feel invincible in the face of battle. How true was the level of use among soldiers, and who or what types of soldiers was the use more rampant if at all?