I also find benzedrex more euphoric than adderall, sometimes anyway. It's an odd drug because it affects me very differently at different times, and this is after being very experienced with it, having taken it more times than I care to try to recall over many years. I somewhat hate it, as I have often felt compulsed to use it since I walk by it at the grocery store all the time, and it has a disproportionately bad comedown and side effects for what it is. Sometimes when I take it, it produces a very entactogenic effect where I want to talk to everyone, my skin and scalp tingle, and it's great. Then other times, I just feel overstimulated and grungy and it feels nasty. Taking just a little bit, like 1/4 of a cotton, is less apt to produce bad side effects or a comedown, and is more of a somewhat functional stimulant, though not nearly as good as amphetamine as a functional stimulant.
Stimulants, serotonergic ones especially, tend to produce an effect in me where it makes it hard to pee. Propylhexedrine does this worse than almost anything else, it's really bad, and worries me sometimes. It can last for 2-3 days after a strong dose ( a strong dose is a whole cotton or even more than a half of one, for me... a half a cotton is enough for me). It rises heart rate dramatically, as well as blood pressure. Strangely, the feeling is not speedy in a traditional sense, I don't want to get up and move around, I can sit still for hours. The comedown can be wretched, very anxious, feeling gross and "lossy", no appetite, negative feelings.
All in all, I still use it sometimes, but I prefer nearly any other stimulant. I have gotten some very nice highs from it over the years, but it's not worth the side effects, and more than half the time, the high isn't even nice.
One other thing, I took more than one inhaler one time... never again. I was driving home from work that day and found myself repeatedly having conversations with my passenger seat, thinking it was my girlfriend, and then snapping out of it. It's a miracle I didn't crash my car. Then at home, shadow people were rushing me out of the corner of my vision and the air looked like it was filled with smoke. I couldn't pee for a whole day and almost went to the hospital because of it. I couldn't sleep for 36 hours either and the comedown was horrific. I felt so bad. The shadow people part was early on, it was like it put me into stimulant psychosis but not due to lack of sleep.