- Traditional Chinese Character(HanT):
內丹
- Simplified Chinese Character(HanS):
内丹
- Bopomofo(Mandarin Phonetic Symbols): ㄋㄟˋ ㄉㄢ (ㄋㄉ)
- Bopomofo(Zhuyin Keyboard Input/IME): "so420 " (so420)
- (ASCII) Hanyu Pinyin: "neidan" "Nei4Dan1" "Nei4 Dan1" (ND)
- (Latin) Hànyǔ Pīnyīn: NèiDān [ Nèi Dān ]
- (英文翻譯) English Translation: "Neidan"
- (西語翻譯) Traducción Español: "Neidan"
- (日文翻譯) 日本語翻訳: "ネイダン"