Tramadol vs. Demerol

Tramadol and Demerol Definitions
Tramadol
A synthetic analgesic, C16H25NO2, used in its hydrochloride form to treat moderate to moderately severe pain. It is structurally similar to codeine and has both opioid and nonopioid effects.
Demerol
A synthetic narcotic drug (trade name Demerol) used to treat pain
Tramadol
(pharmaceutical drug) A synthetic opioid analgesic administered orally in the form of its hydrochloride C16H25NO2·HCl to treat moderate to severe pain.