I suspect this is one of those "IV is a different drug entirely" drugs.
Oral it's fine, plugged I liked it and used it compulsively, but IV sounds completely different.
To date this is the only drug where I've actually gotten rid of it to stop myself from using it. Was more compulsive for me than meth or coke, but I couldn't even tell you why. The experience wasn't anything that warranted that kind of use.
I fucking dumped a whole pound of it. Was meant to be a lifetime supply lol.
The rush is like nothing else. I'd pass on IV coke, hydromorphone, morphine and MDMA anytime to shoot some 3F-P. The boiling blood, the ice cold breath, arteries pounding all the way up to my skull, ears hissing, then my eyelids drop and there's perfect silence and tranquility. I haven't injected it in what will be 2 years sometime in summer, but still catch myself thinking about it several times per week. Everytime I look at a person who has some visible superficial vascularisation I get nostalgic. GOD IT'S SO FUCKING GOOD. I remember all those hours immediately before I'd get to shoot up like it was yesterday. The excitement, the sheer happiness and later the torn feeling, tears coming from my eyes while simultaneously anticipating that enormous full-body orgasmic rush. I never felt this out of control over my behaviour again.
I can only urge everyone to not ever IV this stuff, especially if you have an affinity for needles and stimulants. It's only really feasible using a butterfly anyway with a full-blown rush dose being between 400 and 500mg and needing 1ml water per 42mg of salt. I usually had to stop before the full 500mg entered my body simply because it'd feel like another mg would make my heart explode.
I really need to stress that a single year (or two) of IV 3F-P use left my arms scarred. The largest two veins on both my forearms became inflamed and died in a painful process lasting several months. I got an abscess due to the needle fixation it would trigger and the compulsive blood drawing that often followed. It's not fun having to clean your apartment of blood for a full 12 hours straight.
Even worse though, it fucked my nerves big time, eventhough I never went above 42mg/ml. It got to a point where I'd wake up screaming at night. Again, no fun. The symptoms dissipated after as little as a week and were gone after two months. A single injection would at least cause tingling sensations for days after.
However the main effects are the exact same in my experience. It's actually really good when used orally and the required dose is only 40% higher compared to IV use. It's my second favourite way to take this stuff. Keep in mind 150mg is plenty when administering it orally since it's not about the rush and anything above that will just increase the undesirable portion of it's effects.
I've had 10g 3F-P last year for oral use and enjoyed it a lot more than amphetamine and cocaine. Just ordered another 2g for a single session with the misses. The biggest challenge is not dosing too high or the beautiful slightly empathogenic stimulation will give way to that same compulsive hellhole all stimulants take me to.
By the way the experience seems to become a lot more serotonergic at very high doses. Hence the dropping eyelids and silence upon injection. At least that's what I assume.
EDIT: Ha noobcakes, I just read your post. Sounds like we are in the same boat! :D God that rush. I need to steer way clear of this thread!!