metopon
/ˈmɛtəpɑn/
noun
- A highly addictive opioid drug, formerly used as a painkiller but now restricted.
- Metopon was once prescribed for severe pain but is now rarely used due to addiction risks.
- The pharmacist explained that metopon is a controlled substance in most countries.
- Researchers studied metopon's effects on pain relief during the 1940s.