Many injury victims will now face additional obstacles in obtaining access to pain medication prescribed by the doctors. This is because in October, the FDA has changed the classification of Vicodin and other medications that combine hydrocodone with Tylenol and other medications to fall into the same category as straight hydrocodone. To understand this, you has to understand that drugs are classified by the FDA under a 5 tiered schedule. Schedule I drugs being the most restricted and Schedule V drugs being the least restricted. Schedule I drugs are those which are deemed to have no current medically approved application in the United States AND which display a high potential for abuse and addiction. No doctor may write a prescription for Schedule I drugs which include substances such as heroin and LSD.