Tramadol is an opioid.
Katz
Kenneth D
KD
D000701:Analgesics, Opioid / Q000009:adverse effects / Q000145:classification*; D003257:Consumer Product Safety; D004347:Drug Interactions; D006801:Humans; D010353:Patient Education as Topic; D012640:Seizures / Q000139:chemically induced; D009626:Terminology as Topic; D014147:Tramadol / Q000009:adverse effects / Q000145:classification*
D000701:Analgesics, Opioid; D014147:Tramadol