If you suffer from pain then don't be late to buy Vicodin online. It is a combination of prescription pain reliever medicines developed for the relief of moderate to severe pain. Vicodin is a prescription tablet of hydrocodone and Acetaminophen. Hydrocodone is an opioid pain reliever, also known as narcotics in the streets. Acetaminophen is a non-opioid substance and a less potent pain reliever that works by increasing the effect of hydrocodone.