I've been on Opana ER and IR, since last march. I find it very effective, and readily available in the 10mg IR, and the 10 and 20mg ER. However, 3 and half months ago I switched to the the 30mg ER and CVS has not been able to order it for me. I have to go out of to a specialty pharmacy to find it and would rather go to the pharmacy where I get my other medications and where the pharmacists and techs know me. Does anyone have difficulty obtaining their Opana ER.