Over the counter drug that contains similar ingredients as hydrocodone?

Oxycodone is a pain killer so there are several drugs that have the same effect. Some of them are Codein, Hydrocodone, Hydromorphine, Levorphanol, Meperidine, Methadone, and Morphine. Copy and paste link for more information: http://opioids.com/oxycodone/prescribe.html