35,000,000 pills of Pervitin (aka methamphetamine) were given to Nazi soldiers in a 3 month period in 1940.
A nazi doctor also developed a pill for soldiers, code named D-IX, that contained cocaine, methamphetamine & a morphine based painkiller.
Hitler's Doctor, Theodore Morrell, would inject Hitler 6+ times a day with a concoction he called "Vitamultin-Forte" which was crystal methamphetamine. He would go into Hitler's room and hook up the IV before Hitler was even awake.
In Hitler's diaries, he wrote how many nights, when Morrell was out of the country and couldn't administer his Vitamultin-Forte, he would "go through the deepest pits of hell" (aka withdrawal) until Morrell returned with his Vitamultin.
(these facts can be found in the book The Secret Diaries of Hitler's Doctor by David Irving