What is Vicodin? Vicodin is the most prescribed medication by far over the past decade. In California alone, 1 billion dosage units of hydrocodone combination products were dispensed in 2013. Vicodin is a combination of acetaminophen (Tylenol) and hydrocodone (narcotic opioid). In 2014 the FDA placed Vicodin in a more restrictive drug schedule to limit […]