Hi,
my poney had the luck to get his hand on a nice sample of 3-fph, few grams a consequent amount for him as he's just a casual user of stimulant.
As for stimulants, he had previous experience in coke, 2c-i, mdma, ethylpenidate, 6-APB, speed, and many others chemical researches.
The powder is white with some sparkles, like pure coke. There is some little rocks but they are easyly crushed.
He was a bit busy so he took some 4 days in a row, with quite some sleep and not-so-bad nutrition. First I need to say that after 4 days of frequent use (once an hour while working, 5/6 times a day, sublingual or snorting) my poney had a what sounds like a "general" comedown, he felt very anxious so this is definitively not safe (for my poney at least) to think of it as an everyday drug.
Comedown was treated with half a lexomil, a glass of wine and everything went fine.
Now the good part, drug gave him a feeling of focus, energic high, subtle but definitively usefull to concentrate. Or giving him the feeling he was more able to....
Doesn't really have a bad comedown if you are precautious (less than 100mg), but if too much, my poney was unable to sleep and relax. Not a "deep" bad trip like coke or MDPV can give him, like beeing really depressed before he's able to sleep. But still unpleaseant.
Recently tried speed (paid the price of coke...) that had a worse comedown.
Tonight, someone saw him smoking it (20-30 mg) on a foil, and he seems to enjoy it better than by sublingual or snorting. Never tried methamphetamines, but he though maybe that could be close. (I repeat, never tried so don't take his subjective idea for a reality, it's just my feeling).
He seems to be a more-ish drug, as he was frequently repeating the process with a bunny that seems to enjoy it as well.
There is not a lot of information on this drug, he started with a tiny dosage sublingual and increased during the day to fing my sweet spot. On his note was :
==HE HAD NO SCALE== (at your own risks, just start very small and build up. He's very precautious...as can be a pony that tries an undocumanted molecule).
Snorting : burn like 40 secs, no special "rush" effect like coke. estimated 20 - 30mg.
Sublingual : not a good taste, but not caustic. estimated 20-30mg / hour.
Smoking : found him with an aluminium foil smoking it, a really small amount. estimated 10 - 15mg. Can smoke 2 or 3 an hour. Feels like this ROA may hook him, don't know, first time was tonight. But I usually give up everything after few weeks / months, except weed
3F-Phenmetrazine + Benzo (1/2 lexomil) : he think it's ok to use it with benzo if you need to smooth the comedown. Used few times benzo in his life, only for mdma or 6-apb comedown.
3F-Phenmetrazine + Alcool : give you a boost in energy/self confidence but not coke like, more like you are present and chatty but no rush.
3F-Phenmetrazine + Weed : no noticeable interactions. He's an everyday smoker.
As he read on this thread, there seems to be a thresold were the effect doesn't wear off and can last hours. But it's not pure bliss, it's just beeing unable to sleep, and he doesn't like so much to "fight" against his body/mind when he's tired. Till he sleep and wake up fine.
Overall a good experience, but he's in the honey moon phase with that molecule, as he just received it few days ago. If you don't have a scale, really start small like the smallest you can, 5mg. Now party is over, he was able to write a post on a forum and he just feel fine and able to sleep...
No idea about middle or long term use, cardiotoxicity or anything and would like to know more !