I think they are developing an oxymorphone
nasal spray, which has a BA of~40%. I've always had the best results with Opana/oxymorphone
Oxycodone) because it lasts longer, it is more "targeted" and hits the right receptor(s) that helps my pain without the "rush" or euphoria Oxycodone seems to produce for me. Oxycodone gives me energy (part of the euphoria, I suppose) and it makes it tougher to sleep.