I used a 50 mg tablet IV, by crushing it then adding 3 ml water combined in a spoon and flash heating it with a MAPP gas torch about 2 seconds then tilting the spoon in an extreme forward position until the sediment pooled then gently rocked the spoon back and placed a piece of a cigarette filer in the clear water drew it through the filter into a 3ml syringe. I only could get 1.6ml of clear liquid through the filter. I injected into a vein. Results were a mild high , inadequate pain relief so I tasted the powder in the spoon and it was still very bitter so alot of the drug was still "locked up". I took a second pill orally as well as the residue in the spoon. Still inadequate pain relief
so I took 2 more and it worked, not so much as to get high but pain relief was good. I got this from my doctor (pain clinic) because I had been on my regular dose and had a very painful procedeure (EMG) done so I took more dilaudid and oxycontin that month and ran out early for the first time in 7 years of being on narcotics (legitimately I take 40 mg oxycontin twice a day 20 mg at bedtime plus 4 mg of dilaudid up to 8 times a day for a missing limb,phantom pain and chronic pain for several joint injuries from ski racing) so my doctor gave me 30 demerol to last me 6 days until I get carpel tunnel surgery.
The bottom line is demerol tablets are a waste of time and a risk taken IV (I also have a prescription for syringes' so I always use a new one that way you don't get "tracks" and as long as you use alchohol to clean the injection site before injecting reduces the risk of infection dramatically) The oxycontin and dilaudid both work and are very effective IV, more so than if taken orally. But morphine sulfate and demerol are dangerous and ineffective taken IV, better to just take it orally not just because of the risk but also you get LESS of the drug trying to separate it from the pill. As for trying to take the demerol IV by not filtering it so you get more of the drug in the solution don't try it. Filtering through a fine filter (low tar cigarette filters work and are readily available) twice works great, cotton not so good as too many particles get through. Things like talc and starch once in the blood end up deposited in the lungs and will give you a condition called COPD AND EVENTUALLY WILL KILL YOU. So always filter. Frankly I wish I could get off narcotics, yes they may make you feel good but they are really addictive not in the way of chocolate or other benign things but with severe withdrawl and in my case severe pain way before I can get to withdrawl. I doubt you will lose your hand like the earlier post unless you hit an artery and/or your needle is dirty. Using dirty, dull, barbed or used needles is just plain stupid. If you must reuse needles make sure they are sterile by boiling them and then rinse with full strength bleach then again with alchohol, and resharpen the needle point using a ultrafine diamond sharpening stone(available at ski shops) or if not then a matchbook striker and make sure you don't leave any barbs unless you want highly visible tracks. Between the toes is an open invitation to infection, and take it from me you don't want to lose a limb.If you are doing this to get high I think your best bet is heroin. Leave the pills alone.