Hydrocodone is a powerful opioid analgesic medication used to treat moderate to severe pain.Usapainmeds.comIt is the generic form of the brand-name drug Vicodin. Hydrocodone can be a very effective way to treat pain, but it can also be highly addictive and can lead to serious health problems if abused. If you suffer from moderate to severe pain, you may want to consider ordering hydrocodone online without a prescription.