Many people have died taking this. I want to make sure everyone knows the dangers and things to prevent this from happening. 1. If you are not opiate tolerant, don't even mess with it. (I consider opiate tolerant 60-100mg of morphine a day or equivalent) 2. ALWAYS use a milligram scale. I cant believe all the people that will cheek a 100mcg patch. 3. If using Fentanyl with an inert ingredient always start off with the lowest possible "good" measurement. 4. If you MUST use the needle, the safest way is to take the entire package that was ordered and measure it with saline solution or bacterial free water. It only lasts a couple days, but that is the only TRUE way of getting a proper measurement. Can you tell im against using the needle yet? it can work great via other routes. I just dont want someone to hurt themselves. Ask the vendor if it was mixed using a wet/spray method. The vendor can be the best chemist in the world, this doesn't remove the risk of having hotspots (where there is more product in one small area). All one can do is take all the precautions that are available. Its up to the end user to take precautions as well. Even if you Know what you are doing. It would be wise to do the tiniest dose and take it by mouth or maybe nasally. Or even smoking would be better than using a needle. I highly advise against using the needle. Its very unforgiving...Also, it would be wise to have narcan available with someone that is not using and they know how to use it. Please be safe people. Don't Ever buy Raw Fentanyl.