Tramadol is an opioid analgesic medication for treating moderate to moderately severe pain. It is an effective line of treatment for pain management and allied conditions.Now you can buy Tramadol online It is a schedule IV controlled drug in the US and primarily treats mild to moderate pain. It is the second line of treatment for fibromyalgia; however, the FDA does not approve it for managing and treating a condition called fibromyalgia, and it is also used as a secondary pain killer.