Dùlěngdīng shì yī zhǒng shòu guǎnzhì de mázuì yàopǐn.
Pethidine is a controlled narcotic medication.
Tips
history
杜冷丁 is a phonetic loan of "Dolantin," the German trade name for pethidine (also called meperidine or Demerol in English). The drug is a synthetic opioid analgesic developed in 1939, widely used in Chinese hospitals for severe pain.
memory
Read it as "do-leng-ding" — the syllables roughly approximate Dol-an-tin. The chosen characters (杜 "to stop," 冷 "cold," 丁 "man/D") have no medical meaning; this is pure transliteration.