Hey guys, I apologize for stepping on toes here, but we really don't like threads here in the Harm Reduction forum that are not related to Harm Reduction. Granted, there are health implications involved when using Hard Drugs (Amphetamine is the real deal, sorry guys), but that is not the concern of this thread. First off OP, you would be doing yourself a favor by developing some research skills, because there is a wealth of information online regarding how to potentiate Amphetamines. It's not that we don't want you to be happy, productive, focused or what have you, it's just that we're only concerned with members' safety. If they want to get higher, that's for them to figure out.
I will throw you a bone. Lemon juice is counterproductive. Again, you need to put on your researcher hat, because this information is readily available and if you know a little, tiny bit about what you're dealing with, you can figure out how to potentiate it by simply reading the Wikipedia article. Your best bet is modifying your urinary Ph. The only thing that has every worked for me has been making my urinary Ph less acidic. This can prolong the effects of Amphetamine. Do a little bit of research!
This is closed due to its focus being solely on "how to get higher", which is not our thing.