snorting all those binders will catch up with ya. There are those that swear by rectal yet I think the best combination of safety (unpleasant sides) and efficacy is oral taken with an acid reducer.
Amphetamine has pretty good bioavailabilty eaten, snorted or plugged. Antacids do indeed potentiate amps. There really is no reason to do anything other than eat them unless you like to IV or smoke. If anyone is interested I'll post a simple extraction to get pure enough amp to do either. Requires a can of tolouene, lye, muriac acid, litmus strips and a few test tubes with caps. These items cost about $20 total and can be reused to extract every script for years. Takes an hour and no knowledge of chemistry all all. But I'm not gonna bother with typing all that unless someone wants to know.
IV! Lol just kidding, I wish. I used to grind it up in a shotglass and snort the fine powder...but then it caught up with me. The binders DESTROY your nose. Now I just wrap the powder in a rolling paper or a piece of tissue and swallow it (aka parachuting it).
I have noticed that snorting Adderall is the most euphoric method. It provides a peaceful wave of good feelings. Taking it by mouth inevitably produces irritability and anxiety in the come-down, which insufflated Adderall does not deliver.