Vicodin is an opioid pain relief medicine that relieves pain by attaching to opioid receptors in the brain and blocking the feel or response of the pain. It is a combination of both acetaminophen and hydrocodone. Hydrocodone is an opioid medication that works as an effective pain reliever. It treats the pain which can not be treated with any other pain killer medicine or the person can not take other medications. It is available as a tablet and capsule that can be taken by mouth as you need for your pain. You should avoid consuming alcohol while taking Vicodin or avoid foods and drinks which contain alcohol in it. Take it as you prescribed by your doctor or pharmacist and follow their instructions to avoid overdose or misuse of Vicodin. If an individual is allergic to hydrocodone or acetaminophen then they should avoid vicodin.