i have been iv'ing the opana IRS 10mg about 4 to 6 times daily for the last 2 months, i just ran out of them last night and started subs today but they dont seem to be helping much i still have really bad anxiety, i also have been trying to smoke pot but not working that well, i cant imagne how bad it would be without the subs are opana worse then oxy and herion cuz i feel like it is? any ideas or opinions i need help?