Overview of Tramadol Tramadol is an opioid-like analgesic and is classified as a synthetic opioid. The brand name of Tramadol is Ultram ER, Ultram, Qdolo, ConZip, etc. It acts in the CNS (Central Nervous System) to relieve pain. Tramadol is primarily used to treat moderate to severe pain in adults. The sustained release form ofRead More