Buy Vicodin online to get rid from several pain. Vicodin is a prescription pain reliever that contains acetaminophen and an opioid called hydrocodone. The medicine is used to treat moderate to severe pain and is taken by mouth. Three different strengths are available, and patients should talk to their doctor about the dose best for their needs. Most patients are advised to take one tablet every four to six hours as needed to control their pain, and the maximum dose should not exceed six tablets per day.