Mài Dōng (麦冬), known in English as Ophiopogon (Ophiopogon japonicus), is a cool, sweet and slightly bitter Chinese herb from the Tonify yin category. It enters the Lung, Heart and Stomach channels. Its main action: nourishes Lung and Stomach Yin, clears Heat.

Illustration of Mài Dōng (Ophiopogon), the dried herb
Illustration of the dried herb. Hear it pronounced in Mandarin:
PinyinMài Dōng (Mai Dong)
Chinese麦冬
EnglishOphiopogon
Botanical nameOphiopogon japonicus
CategoryTonify yin
NatureCool
FlavourSweet, Slightly bitter
ChannelsLung, Heart, Stomach
Dosage6–12g
CautionsCold-Phlegm; Spleen deficiency diarrhoea; Wind-Cold cough

Actions

  • Nourishes Lung and Stomach Yin, clears Heat
  • Nourishes Heart Yin, calms Shen
  • Moistens intestines

Indications

  • Lung dryness cough
  • Stomach Yin deficiency
  • Heart Yin deficiency with palpitations and anxiety
  • Constipation from dryness

How to remember Mài Dōng

Tonify yin herbs are mostly cool or cold and sweet, and most enter the Kidney and Liver channels.

You can work these out
Cool, Sweet: like most Tonify yin herbs
Lung and Stomach channels: from its action “Nourishes Lung and Stomach Yin”
Heart channel: from its action “Nourishes Heart Yin”
Learn by heart
Slightly bitter: unusual for Tonify yin herbs (most are sweet)

Formulas containing Mài Dōng

Other Tonify yin herbs

Test yourself

What is the nature and flavour of Mài Dōng?

Mài Dōng is cool and sweet and slightly bitter.

Which channels does Mài Dōng enter?

Mài Dōng enters the Lung, Heart and Stomach channels.

What are the actions of Mài Dōng?

Nourishes Lung and Stomach Yin, clears Heat; Nourishes Heart Yin, calms Shen; Moistens intestines.

What is Mài Dōng used for?

Lung dryness cough; Stomach Yin deficiency; Heart Yin deficiency with palpitations and anxiety; constipation from dryness.

Which formulas contain Mài Dōng?

Qīng Yíng Tāng, Tiān Wáng Bǔ Xīn Dān, Yù Nǚ Jiān, Qīng Zào Jiù Fèi Tāng, Wēn Jīng Tāng, Yī Guàn Jiān, Bǎi Hé Gù Jīn Tāng, Shā Shēn Mài Dōng Tāng, Dà Dìng Fēng Zhū and Zhì Gān Cǎo Tāng.

Practise Mài Dōng and the other 290 herbs

Recognise each herb from its picture, recall its nature, flavour, channels and actions, and review it again just before you would forget it.

Try the 5-question herb quiz

Or practise a TCM case

Shen Study is a study tool. Doses and cautions are as taught in standard Chinese materia medica texts; they are not prescribing advice.