Sniffing Activis generic Opana is the easiest and better than heroin in high IMHO>. I do not advocate iving and oxymorphone they all have deadly fillers that unless you are chemist you should not mess with any extractions. I myself have stopped IVing oxymorphone even though I'm very informed and great at extraction. Sniffing is just as good as IV just takes 5 minutes longer for onset.