Obviously I can't determine the exact BA if the OP had taken it orally, as it varies depending on the person and other factors. But you can definitely increase the BA if you're smart about how you take it, grapefruit juice and an empty stomach being just two examples (and I picked them because they're the most basic). I've also seen up to 87% oral BA posted in OD's bioavailability chart, though that definitely not the highest number I've come across.Okay just saying there's a big difference between 90 and 70% its would have to be a pretty special set of circumstances that make the oral BA 90% and would take more than grapefruit juice to get it up that high.
But you're focusing on one small detail and missing the bigger picture of what I was saying, which is that IV oxycodone is not worth the risk compared to the relatively small reward (some increased BA and onset but no rush, decreased duration). If you have a wheel filter then of course that changes the equation, but the reality is most IV users don't and cotton is inadequate at filtering out many binders and fillers found in pills.
The general consensus in OD is that IV oxycodone just isn't worth it and has been for some time.
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