I once went to the Walgreens pharmacy in Sacramento ca on the corner of 24th st and Florin to pick up my pain medication, Opana er 40mgs. The Pharacist had substituted cough pills in the place of the pain pills. The bottles were labled Opana er 40mgs. But they had been switched. So, if you are getting your medication from any Walgreens you should be on the look out. Walgreens pharmacies all over the United States have been stealing pain killers and saling them on the black market. They are making millions.