Alright, please explain to me why we are not supposed to heat stuff up. I never heat heroin, don't heat roxi if I have the patience to wait for it to dissolve enough, don't heat regular opana, but I heat opana er and I heat dilaudid. How do you even do these without heating? Why is it so awful to heat? I keep seeing do not heat in all caps like its awful. Uhm... everyone I know heats. What the hell are you all talking about, please?
Some things actually need to be heated in the case of various ER formulation pills like certain brands of MS Contin/MST Continus (though others only need cold water). In these cases you heat because it breaks up the waxy semi-solid that the ER formulation creates, allowing you to have a liquid suitable for injecting that won't block your veins.
However where heat is not required all it does is allow more gunk that you don't want in your veins to get into the syringe. For example if you add like 10 different powders that look like heroin but are really just inactive cuts to cold water, only 2 might dissolve, and the rest might stay as powder/clumps that get filtered away when you filter your shot - but if you heat the water until boiling you might find, 6, 7 or hell even all 10 dissolve. So now they're liquid and will go straight through your filter with no problem and you've just put 6-10 inactive and harmful cuts into your veins instead of 2.
Higher temperatures == more substances dissolve. Opiates themselves only need very low temperatures to dissolve at so the only time heat is ever needed is when dealing with those waxy ER pills that need boiling water to break down. That said really you shouldn't be IVing those in the first place.
Some people heat their drugs before injection to kill off bacteria, but if you've been practising good injection technique you'll be at more risk from those insoluble cuts than you will from the miniscule amount of bacteria left over.
What you can do though is heat up the solution and then allow it to become cold again before drawing it up into the syringe. That way you'll kill temperature sensitive bacteria, but while the water turns cold, those cuts that higher temps helped dissolve will turn back into solids again and get filtered out. If you're dealing with those waxy ER formulation pills then one way to do it is to heat it as much as you need, filter and draw up the solution while at its hottest, then squirt it out onto a second cooker/spoon, wait for it to turn cold again, re-filter and draw up into a fresh syringe. That way you ensure none of what you're injecting turns back into that nasty wax in your veins.
Hope this helps
Here's a link on how to shoot up very precisely if you are interested, Lambaj. [video]https://www.youtube.com/channel/UClRlj5KgvVa0RGco60ufUdQ/videos[/video]
Just so you know, a while back Youtube started deleting such videos if they supposedly showed any sort of drug use, so be careful not to mention drugs in any future videos or they might remove them all, and these kind of vids can really help someone new to IV. A lot of visual learners and not as many videos on how to do it out there as you might think.