• Select Your Topic Then Scroll Down
    Alcohol Bupe Benzos
    Cocaine Heroin Opioids
    RCs Stimulants Misc
    Harm Reduction All Topics Gabapentinoids
    Tired of your habit? Struggling to cope?
    Want to regain control or get sober?
    Visit our Recovery Support Forums

Heroin Heroin #3 Iv dosage first timer

responsibleklown

Greenlighter
Joined
Aug 10, 2026
Messages
3
How much should I IV as a first time heroin user? I know you need as many details as possible, but it’s #3, unknown origin, unknown potency (estimated as average from reviews). I know it’s dangerous yadiyadi, but that’s why I’m here to know how little I can try while still feeling the effects. I imagine it’s going to have quite the effect anyway since I’ve never touched H.
 
#3 is usually in the 40-60% range at most, if it's really strong, so I would guess it would be at the low end of that scale at most (if it is considered average). Probably less. That said, taking too much heroin can be more than a little whoopsie, so err on the side of caution. Start low, work your way up. Maybe 10-15mg? Definitely no more than 20mg on your first shot.

It would help a little to know what your tolerance to opioids is in general, with an example of a dosage of another opioid.
 
#3 is usually in the 40-60% range at most, if it's really strong, so I would guess it would be at the low end of that scale at most (if it is considered average). Probably less. That said, taking too much heroin can be more than a little whoopsie, so err on the side of caution. Start low, work your way up. Maybe 10-15mg? Definitely no more than 20mg on your first shot.

It would help a little to know what your tolerance to opioids is in general, with an example of a dosage of another opioid.
Well, my only other experience with opioids are when I overdosed on codeine pills. I think I took around 300mg?
 
Well, my only other experience with opioids are when I overdosed on codeine pills. I think I took around 300mg?

Why are you jumping right to IV heroin?

I'd highly recommend smoking instead. Or, better yet, sticking with an opioid with good oral bioavailability like hydrocodone or oxy.

If codeine has any effect on you, you don't have enough tolerance to create some margin of safety. Be very very careful. This seems like a bad idea
 
I’ve never touched H.

assume you've already read this thread?

 
Well, evidently things have changed.

Number 3 was often termed 'china white' but in truth was produced in SE Asia, mostly in the Shan States in Myanmar.

Samples were typically 90-95% pure diamorphine hydrochloride, the remainder being caffeine added to lower the melting-point thus making it smokable.

But as with all such things, it's another 'mystery powder game'.

The user cannot even PRESUME it cannot be more than 100% heroin so that half a point snorted will give someone without tolerance both a flash and a sustained nod.

The term 'china white' was depricated (at least in the USA) after George Marquardt began producing α-methyl fentanyl. I think the reasons he went with αMF were pragmatic. It was technically legal, it's duration of action was similar to heroin and with a potency some x60 diamorphine, it was highly profitable. It was only discovered after a cluster of apparent fatal ODs turned up but the coroners were unable to find the expected opioids.

I'm unsure if GM also understood the limits of analytical chemistry of the time but initially the DEA mis-identified αMF as 3MF, temporarily scheduled the wrong drug which meant he could carry on in spite of the fact that the DEA had figured out it was the work of a single 'cook' based in the USA itself.

Sidenote - The very same P2P used to synthesize is also used in the synthesis of αMF and although I don't understand US Federal law in detail, even IF caught with P2P, I suspect GM had worked out that claiming it was intended to be used in the production of αMF MAY have been a defence in law.

But truly - vape an absolutely tiny dot of the stuff off foil and wait for 10 minutes. H has a very distinctive taste and smell. One of those things like decaying flesh. Once you have smelt it you will NEVER forget as almost without exception, it means nothing good.

Using pins really does increase the risks and as I noted, unless things have changed, china white can be snorted or smoked and if done properly, both alternatives can achieve almost the same total bioavailability.


I just think injecting mystery powders is not 'a game for all the family' but I enclose a link to the above booklet. It's your body so all I will do is try to provide information so you can make a more informed choice.
 
Well, evidently things have changed.

Number 3 was often termed 'china white' but in truth was produced in SE Asia, mostly in the Shan States in Myanmar.

Samples were typically 90-95% pure diamorphine hydrochloride, the remainder being caffeine added to lower the melting-point thus making it smokable.

But as with all such things, it's another 'mystery powder game'.

The user cannot even PRESUME it cannot be more than 100% heroin so that half a point snorted will give someone without tolerance both a flash and a sustained nod.

The term 'china white' was depricated (at least in the USA) after George Marquardt began producing α-methyl fentanyl. I think the reasons he went with αMF were pragmatic. It was technically legal, it's duration of action was similar to heroin and with a potency some x60 diamorphine, it was highly profitable. It was only discovered after a cluster of apparent fatal ODs turned up but the coroners were unable to find the expected opioids.

I'm unsure if GM also understood the limits of analytical chemistry of the time but initially the DEA mis-identified αMF as 3MF, temporarily scheduled the wrong drug which meant he could carry on in spite of the fact that the DEA had figured out it was the work of a single 'cook' based in the USA itself.

Sidenote - The very same P2P used to synthesize is also used in the synthesis of αMF and although I don't understand US Federal law in detail, even IF caught with P2P, I suspect GM had worked out that claiming it was intended to be used in the production of αMF MAY have been a defence in law.

But truly - vape an absolutely tiny dot of the stuff off foil and wait for 10 minutes. H has a very distinctive taste and smell. One of those things like decaying flesh. Once you have smelt it you will NEVER forget as almost without exception, it means nothing good.

Using pins really does increase the risks and as I noted, unless things have changed, china white can be snorted or smoked and if done properly, both alternatives can achieve almost the same total bioavailability.


I just think injecting mystery powders is not 'a game for all the family' but I enclose a link to the above booklet. It's your body so all I will do is try to provide information so you can make a more informed choice.
Proper answer.
 
Using pins really does increase the risks and as I noted, unless things have changed, china white can be snorted or smoked and if done properly, both alternatives can achieve almost the same total bioavailability.
I've never touched any opioid let alone H myself so will defer to others experience, but I would think you have more control snorting/smoking it as well. You could take 25% of the target dose, wait for 20m, then take another 25%, repeat until the desired effect. Doing this with a pin seems a bit less practical. Generally moving to IV is something people do when usage escalates rather than jumping into the deep end 1st go.

True story, had a friend at college who died from H the 1st time he ever used it, he also injected his 1st use, not sure if an OD, something else, or contaminated but the rumor was OD, this was in the mid 90s, tis not to be fucked with. Poor guy had learning difficulties, my suspicion was he was being taken advantage of by a dealer trying to get him hooked so they had a new customer.

safety 1st, get it tested (make sure you test it for fent), have someone who's experienced with you, they can confirm strength (as a standard test won't), and show you the ropes.

tripsit.me has these for onset and duration which is why I'd consider the smaller dosing with a redose after an interval.

Insufflated

onset 10m to 15m

3 to 6h

Intravenous

onset 0 to 5m

4 to 5h

Smoked

onset 5m to 10m

3 to 5h
 
I've never touched any opioid let alone H myself so will defer to others experience, but I would think you have more control snorting/smoking it as well. You could take 25% of the target dose, wait for 20m, then take another 25%, repeat until the desired effect. Doing this with a pin seems a bit less practical. Generally moving to IV is something people do when usage escalates rather than jumping into the deep end 1st go.

True story, had a friend at college who died from H the 1st time he ever used it, he also injected his 1st use, not sure if an OD, something else, or contaminated but the rumor was OD, this was in the mid 90s, tis not to be fucked with. Poor guy had learning difficulties, my suspicion was he was being taken advantage of by a dealer trying to get him hooked so they had a new customer.

safety 1st, get it tested (make sure you test it for fent), have someone who's experienced with you, they can confirm strength (as a standard test won't), and show you the ropes.

tripsit.me has these for onset and duration which is why I'd consider the smaller dosing with a redose after an interval.

Insufflated

onset 10m to 15m

3 to 6h

Intravenous

onset 0 to 5m

4 to 5h

Smoked

onset 5m to 10m

3 t
I also know of someone who died the first time they tried H, this was before fent. I suggest you don't do it OP.
 
I've never touched any opioid let alone H myself so will defer to others experience, but I would think you have more control snorting/smoking it as well. You could take 25% of the target dose, wait for 20m, then take another 25%, repeat until the desired effect. Doing this with a pin seems a bit less practical. Generally moving to IV is something people do when usage escalates rather than jumping into the deep end 1st go.

True story, had a friend at college who died from H the 1st time he ever used it, he also injected his 1st use, not sure if an OD, something else, or contaminated but the rumor was OD, this was in the mid 90s, tis not to be fucked with. Poor guy had learning difficulties, my suspicion was he was being taken advantage of by a dealer trying to get him hooked so they had a new customer.

safety 1st, get it tested (make sure you test it for fent), have someone who's experienced with you, they can confirm strength (as a standard test won't), and show you the ropes.

tripsit.me has these for onset and duration which is why I'd consider the smaller dosing with a redose after an interval.

Insufflated

onset 10m to 15m

3 to 6h

Intravenous

onset 0 to 5m

4 to 5h

Smoked

onset 5m to 10m

3 to 5h

To be fair, I shoud have said 'vaped' but it this nation we term it smoking even when it's running a beetle over foil and inhaling the fumes. I suppose if you rolled it into a cigarette it might take longer but I've never encoutered anyone doind that.

I must have witnessed people using H a couple of thousand times and the reason it commands so much more value than M is because onset is so fast that it produces a flash. Whatever the ROA, you feel it in seconds. It's quite possible that those values are based on peak plasma levels so at a marginal dose a person my only feel a tickle at those times but generally speaking, the quantities involved mean onset is quite a lot faster.

It's awful stuff but it isn't my job to tell people how to live there lives, only to make sure their decisions are informed hence offering safer ROAs. Not safe, merely safer.

I have to admit it was a good 20 years before I met someone whose first and only ROA for H was via the pin. So while I know it happens, it does seem quite rare. I say this in a nation where Afghan brown smoking heroin predominated and you have to wonder about someone who is willing to whack up what looks for all the world like cold coffee.
 
OP cannot swim and has had one single diving lesson into a paddling pool yet wants to dive into the deep end of an olympic pool from the top board with no armbands and no lifeguards, while wearing a blindfold

He thinks it's a good idea to down a whole bottle of vodka at age 14 sitting on a cliff edge after only ever experiencing a half-pint of Shandy at his cousins wedding

Mate, please don't begin your opiate use with IV Heroin no.3. In fact don't begin it at all if possible - keep the hell away for the sake of future-you

1) You need to convert your freebase heroin into a salt otherwise you cannot inject it anyway
2) It's a stupid idea
3) You must get your 'heroin' tested for 'zines/fentanyl before consumption
4) It's a stupid idea
5) If you really MUST use H no.3 then vape 20mg off foil and see where you're at. Or try between 5-10mg Oxycodone orally. Do not redose.
6) It's a stupid idea

What's going on that's driving you towards opiates mate?
 
@ageingpartyfiend -

Number 3 is diamorphine hydrochloride as I pointed out so NO, it isn't the freebase so you DON'T need to salt it.

After that it all goes down hill.

It isn't like ANYONE has at any point said using H was a good plan but HR isn't just saying 'just don't do this' because whatever you might say, they might still take it so HR is ensuring a person at least makes informed choices including ROAs that are a bit safer. If they insist on using a pin, at least ensure they know how it's done.

Governments are the ones who push that whole 'just don't do it' line and hasn't it worked out so well!
 
@ageingpartyfiend -

Number 3 is diamorphine hydrochloride as I pointed out so NO, it isn't the freebase so you DON'T need to salt it.

After that it all goes down hill.

It isn't like ANYONE has at any point said using H was a good plan but HR isn't just saying 'just don't do this' because whatever you might say, they might still take it so HR is ensuring a person at least makes informed choices including ROAs that are a bit safer. If they insist on using a pin, at least ensure they know how it's done.

Governments are the ones who push that whole 'just don't do it' line and hasn't it worked out so well!
I'm well aware of HR practices brother - I find it helpful to mix HR advice in with a "don't fkin do it mate" on occasion and have found this directly effective in helping dissuade people a number of times, even here iirc

As for the 'numbering' you are indeed "correct". However there is confusion re this for sure. A lot of heroin 'advertising' and indeed street nomenclature refers (in UK at least) to no.3 being smokeable freebase (with or without caffeine? I dunno) and no.4 being a water soluble salt good for IV / snorting (very rare in these parts I gather - but I've definitely seen what you describe as no.3 sold in uk as no.4 though, 100%)

Confusing (for me anyway). I would bet if OP is in uk/europe what he describes as no.3 isn't what you know it to be)

OP - be careful friend!
 
Top