I was using Rx opiates exclusively, and built up a tolerance to ~55-60mg IV Oxymorphone (Opana IR 10mg pills) per day. But let me back up a bit...
I started using hydrocodone (5, 7.5, or 10mg) and also oxycodone (Percocet-form, 5 and 10mg) illegally, but to treat chronic knee pain that doctors wouldn't help with. Then I started to really like how they felt. My intake increased (I was taking maybe 20mg Hydro or 15-20mg Oxy a day, max) and I needed to find something without the APAP. I started using Roxi's, MSIR, (rarely) Oxycontin, and Dilaudid. I was snorting the oxycodone and the Dilaudid, and taking the MSIR orally. Then I remembered the one time I had shot up in my life... It was a couple months prior, and with no tolerance, I shot up Dilaudid and morphine SO4. So, I started banging my morphine pills, but what I really fell in love with was the Dilaudid, of which there was a significantly higher supply. 2mg would still get me off at this point when shot, so I was thinking "goooood deal". Over the course of a week, I went from 2mg to 8mg IV, using 1-2x/day. I was still taking oral/insufflated painkillers throughout the day.
My tolerance grew, and I would bang 120mg Avinza (morphine) capsules, doing the whole thing at once. However, I hated the histamine reaction at that high of a dose, and stuck with the Dilaudid. I could do about 12ish mg at this point, and then I found Opana.
First time I shot Opana, I tried 3mg, and it ROCKED MY WORLD. That quickly became the focus of my life: get Opana, shoot Opana. Every day I was banging it, and everyday the dose would increase. In a week, I could do a 10mg pill at once. After a month, I was up to 30-35mg a day. I couldn't even get off on Dilaudid anymore; it took about 48-54mg which is impossible to fix-up. I was also snorting the Opana 40mg ER tablets, using 1 a day in combination with the IV Opana IR.
I tapered off, though, for reasons I won't say. I went through really, really crappy W/D's, but the taper helped a lot.
I was clean for a month, maybe a little longer.
Opana came back into my life, and I though that my tolerance would have gone down, but not much. First time I shot it after being clean, I did 7mg and it gave me a rush, but not as much of a high as i was used to. I did 15mg that first night, and I'd been clean for a while. I was noddy, but I knew I had a lot more "room".
Fast-forward one month, and I was shooting up to 65mg a day. I would be noddy all day, but not close to the OD limit. I knew when to back off. This was just tolerance making me its bitch.
Well, the supply runs out again, and I know that the W/D's will be HORRIBLE. My buddy says he can hook up some dog, and that's all I needed to hear. I bought a half-G, and banged it all that night. All I felt was the sickness go away, but no real high. I was more talkative than normal, that's it.
I keep on the H for a couple of weeks, always high-quality shit. My friends would get hard rushes, be nodding, feeling higher than hell, and I didn't feel hardly anything. I was using it to keep the sickness away, and still had to use a lot.
I've never felt a heroin rush before, or even a real heroin high. I'm now on suboxone to keep me away from the needle. Maybe someday I'll try it just because I want to know what it really feels like, or maybe not.