Insufflated (small dose) F-phenibut & dextroamphetamine

So I’m diagnosed with ADHD & take a 20mg dextroamphetamine tablet (Zenzedi generic MIA 20) at 2pm as a booster dose. I’m an ultra rapid metabolizer so my Vyvanse doesn’t last long enough.

I prefer insufflating my f-phenibut over the oral route due to the quicker onset & it requires much less powder than phenibut to get it done which is good cuz I gotta warn ya, it burns!

I have found if I do a small 75mg bump of f-phenibut with my d-amp it 1. greatly increases the effectiveness & as added benefit, likely to induce the side effect of euphoria & increased sense of well being, 2. reduces, if not eliminates, symptoms of anxiety & 3. greatly prolongs the duration of d-amp (6+ hours vs 3.5). I would not suggest doing this more than 1-2 times a week (once would be safer) & must warn you about the fact it can be addictive, especially if you like stimulants.

Has anyone else tried this (oral or insufflated) before & had similar results? It’s like a floaty, euphoric body tingling sensation that produces energy & focus. Much more pronounced effect than oral regular phenibut with d-amp (amps in general). Does not require much f-phenibut at all.