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RCs The Methiopropamine N-methyl-1-(thiophen-2-yl)propan-2-amine (MPA) Megathread V2

Slightly changing the subject (and with my first post nonetheless) I'd like to raise a question. I apologise if this is the wrong place it was either here of ADD so feel free to shift it if a mod see's fit.

So heres what I'm pondering, I am a long term MPA user been insufflating pretty much every day and getting through a fair few grams over the last year, I am quite the fan of shooting any drugs that i can dissolve and fit into a barrel so naturally these two passions came together and I recently thought "Ah fuck it, why not" and loaded up a spoon with a bit of MPA (the same amount i usually insufflate) it dissolved pretty easily but i added a tiny bit of citric just to make sure, filtered it up and slammed it into my cephalic vein.

It was pretty nice, bit of a rush but what struck me most was within a few seconds of flipping my tourniquet (belt) off was a a catching in the back of my throat, like the most intense urge to cough i've ever felt that seemed almost cold or menthol-y.

Now obviously MPA is a thiophene analog of methamphetamine and there is a myriad of reports of "Meth Mouth" and getting coughs from strong IV hits of methamphetamine and even coke but I'm yet to find any reports or studies of this happening with MPA, perhaps due to the lack of IV methiopropamine use or maybe due to the fact i used a little more than common sense dictated i should have but could anyone point me to medical papers or peer reviews of the causes of this catching of the throat following IV'ing?

I've stumbled upon a few posts on here and on "drugs forum" that suggest the cough reflex is a particle being caught in the artery to the lungs and the coughing action clears this but i can't seem to find any reliable source on this and it seems a bit hard to believe that every time someone slams methamphet they are experiencing embolisms.

So to conclude my first and perhaps a bit too rambling post IVing MPA is probably a sincerely bad idea but can anyone elucidate on the cause of the catching of the throat, its sudden and very intense and I'm intrigued as to why its happening.

Oh also, does anyone have any research or evidence of long term side effects that may be irreversible from use of MPA for extended periods ? As much as I like it as a study aid and general "Get up and go-er" i'd be willing to give it up if i thought it was gonna leave lasting neurotoxic effects.


cheers guys, also etizolam is the MPA users bed partner :)
 
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I'm a light user of MPA (let's say 50mg a week), and at this amount, I report no cross-tolerance at all. Even with extensive use, I'd imagine MPA to have very little cross tolerance with serotonergics.

Ok, so I had one point of MPA two days in a row then two days later dropped 200mg MDMA & 100mg 5-APB. I'd say there was some sort of cross tolerance although I only remember certain parts of the night the rest was just a blur. I think I may have just overdone it seeing as I can only remember a few things from the night. Next time I will take two weeks off MPA to properly guage it.
 
I swear I'm building some sort of inverse-tolerance to mpa. I take 25mg everytime, but it feels stronger and stronger each time. 25mg now feels stronger than when I first took mpa at 50mg, several times. Would anyone like to suggest how this could be? I rate my last experience with 25mg 100% intensity wise, where anything above 100% would be an overdose. Actually, this last experience was more like 20mg due to spillage.
 
I swear I'm building some sort of inverse-tolerance to mpa. I take 25mg everytime, but it feels stronger and stronger each time. 25mg now feels stronger than when I first took mpa at 50mg, several times. Would anyone like to suggest how this could be? I rate my last experience with 25mg 100% intensity wise, where anything above 100% would be an overdose. Actually, this last experience was more like 20mg due to spillage.

I've never had it feel stronger, but I've never had any build of tolerance. I've just been a way for a week, only just got home and had about 2 hours sleep cos of shitty early morning flight times.

I'm tempted to have some, will I get stronger euphoria as I haven't had any for over a week?
 
From the impression you give me of how much you consume, I'd say definitely. :)

I'm in a pretty depressed mood atm since coming back. I hate living here. :(

Maybe I should wait till tomorrow.
 
going to get 5g of this again 5g eph any one mixed them before? also want to drop a 5apb 240mg pellet with one of the 2 just which will be best

That sounds like a very dangerous combo.
 
maybe lower the 5apb dose by 2 thirds, thats a hectic dose as it is, nevermind throwing in another strong stimulant in there with it. cant see any positives coming out of mixing eph and mpa either..
 
My friend and I fount 150/160mg (respectively) to be the most we'd ever like to try again. 150 felt stronger than my 200mg 6-APB experience, which I would only ever top by a tiny amount. 240mg 5-APB would literally kill me, never mind a stimulant on top of that. Scary stuff.
 
do not mix 5-apb with eph man.

I have not done the combo personally, but it really seems like a baaad idea!
 
Sometime the vasoconstriction gets really annoying with MPA, mainly in the legs. Sometimes it even carries on into the next day when I wake up in the morning. That's with a low dose.
 
i really do not get that of the stuff unless like at christmas im doing 5g at a time but the eph when vaped it would get me

I only seem to get it when I'm sat on my arse all day. If I'm cleaning my house or doing something then I'm okay :D
 
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