Ultram's generic equivalent is Tramadol. Known as Ultram in the United States, the medication is also marketed as Ralivia/Dromodol in other countries. By altering how the central nervous system reacts to pain, this drug works. An opioid-like painkiller is Tramadol. The medication for pain treatment is also offered in emergency room form. ER Tramadol shouldn't be the main medication used to relieve pain, though.