- Traditional Chinese Character(HanT):
內源性類鴉片
- Simplified Chinese Character(HanS):
内源性类鸦片
- Bopomofo(Mandarin Phonetic Symbols): ㄋㄟˋ ㄩㄢˊ ㄒㄧㄥˋ ㄌㄟˋ ㄧㄚ ㄆㄧㄢˋ (ㄋㄩㄒㄌㄧㄆ)
- Bopomofo(Zhuyin Keyboard Input/IME): "so4m06vu/4xo4u8 qu04" (so4m06vu/4xo4u8qu04)
- (ASCII) Hanyu Pinyin: "neiyuanxingleiyapian" "Nei4Yuan2Xing4Lei4Ya1Pian4" "Nei4 Yuan2 Xing4 Lei4 Ya1 Pian4" (NYXLYP)
- (Latin) Hànyǔ Pīnyīn: NèiYuánXìngLèiYāPiàn [ Nèi Yuán Xìng Lèi Yā Piàn ]
- (英文翻譯) English Translation: "endogenous opioids"
- (西語翻譯) Traducción Español: "opioides endógenos"
- (日文翻譯) 日本語翻訳: "内因性オピオイド"
