@thor @amerika It was racemic methamphetamine hydrochloride. The USA used Amphetamine in WW2 and I can't say that it has been completely phased out to this day.
Methamphetamine was more likely to cause problems like insubordination and violence while also leaving the soldiers nearly useless for a day.
The drugs have different properties but in low doses they both seem to be safe.

There's no reason why one shouldn't be allowed to buy either a local store.