Herb

Ai Di Cha

Japanese Ardisia | 矮地茶

Also known as:

Ping Di Mu (平地木)

Parts Used

Whole plant / Aerial parts (全草 quán cǎo)

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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About This Herb*

Traditional Chinese Medicine background and properties

Herb Description*

Japanese Ardisia is a folk herb from southern China best known for relieving coughs and clearing phlegm, especially in chronic bronchitis. It also helps the body process excess dampness and heat (useful for conditions like jaundice), and can promote blood circulation to ease pain from injuries or menstrual problems.

Herb Category*

Main Actions*

  • Resolves Phlegm and Stops Cough
  • Calms Wheezing
  • Clears Damp-Heat
  • Invigorates Blood and Dispels Stasis
  • Unblocks the Channels and Alleviates Pain

How These Actions Work*

'Transforms phlegm and stops cough' is the primary action of this herb. It has a pronounced ability to reduce phlegm and suppress coughing, with a mild additional effect of calming wheezing. Because its thermal nature is neutral (leaning slightly cool), it can be used for coughs regardless of whether the underlying condition is Hot or Cold, as long as appropriate partner herbs are included. For Lung Heat with thick yellow phlegm, it can be used alone or paired with cooling herbs like Loquat Leaf (Pí Pá Yè) or Honeysuckle (Jīn Yín Huā). For Cold-phlegm patterns with thin, watery sputum, it is combined with warming herbs like Ephedra (Má Huáng) or dried Ginger (Gān Jiāng).

'Clears and drains damp-heat' means this herb helps the body eliminate accumulated dampness and heat, particularly in the Liver and Gallbladder systems. This is why it is used for jaundice (yellowing of the skin and eyes) caused by damp-heat, as well as for water retention with reduced urination. It is commonly paired with Yīn Chén (Artemisia) and Hǔ Zhàng (Japanese Knotweed) for jaundice, or with Fú Líng (Poria) and Zé Xiè (Alisma) for edema.

'Activates blood and resolves stasis' refers to its ability to improve blood circulation and clear blockages in the channels. This action, arising from its pungent taste and Liver channel entry, makes it useful for menstrual irregularities caused by blood stasis (such as absent or painful periods), traumatic injuries with swelling and pain, and joint pain from wind-damp obstruction.

Patterns Addressed*

In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Ai Di Cha is traditionally associated with these specific patterns.

The following describes this herb's classification within Traditional Chinese Medicine theory and is provided for educational purposes only.

Why Ai Di Cha addresses this pattern

Ǎi Dì Chá enters the Lung channel and has a neutral-to-slightly-cool nature with a bitter taste that descends and clears. Its primary action of transforming phlegm and stopping cough directly addresses the phlegm accumulation in this pattern, while its mild cooling tendency helps clear the Heat component. The pungent taste helps disperse and move stagnant phlegm out of the airways. For this pattern it is often combined with Pí Pá Yè (Loquat Leaf) and Jīn Yín Huā (Honeysuckle) to strengthen the heat-clearing and phlegm-resolving effects.

A practitioner would look for one or more of these signs

Hypochondrial Pain That Is Worse On Coughing And Breathing

Persistent cough with copious yellow, thick phlegm

Wheezing

Wheezing and chest fullness

Bloody Sputum

Blood-streaked sputum

TCM Properties*

Temperature

Neutral

Taste

Acrid / Pungent (辛 xīn), Bitter (苦 kǔ)

Channels Entered
Lungs Liver
Parts Used

Whole plant / Aerial parts (全草 quán cǎo)

This is partial information on the herb's TCM properties. More detailed information is available on the herb's dedicated page

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Product Details

Manufacturing, supplier, and product specifications

Product Type

Granules

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Supplier Information

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Usage & Safety

How to use this herb and important safety information

Important Medical Disclaimer

The information provided here is for educational purposes only and is not intended as medical advice or to replace consultation with a qualified healthcare professional. This herb is a dietary supplement and has not been evaluated by the FDA. It is not intended to diagnose, treat, cure, or prevent any disease.

Always consult with a qualified healthcare provider, particularly if you are pregnant, nursing, have a medical condition, or are taking other medications. Discontinue use and consult your healthcare provider if you experience any adverse reactions.

Recommended Dosage

Instructions for safe storage and consumption

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Special Populations

Pregnancy

Use with caution during pregnancy. Ai Di Cha has documented blood-activating and stasis-resolving properties, which means it promotes blood circulation and can move stagnant blood. These actions carry a theoretical risk of stimulating uterine contractions or promoting unwanted bleeding. While there are no specific teratogenicity studies, the related species Ardisia crenata has documented oxytocic and anti-pregnancy effects, raising additional concern for this closely related plant. Pregnant women should avoid this herb unless specifically prescribed by a qualified practitioner who has weighed the risks and benefits.

Breastfeeding

No specific studies have been conducted on the transfer of Ai Di Cha's active compounds through breast milk. The primary active compound bergenin is rapidly absorbed and excreted, with most drug metabolized and cleared via the kidneys within 12 hours. While this rapid clearance is somewhat reassuring, the absence of direct lactation safety data means caution is advised. Breastfeeding women should consult a qualified practitioner before using this herb, particularly at higher doses or for prolonged periods.

Pediatric Use

Ai Di Cha has been used in compound preparations for childhood pneumonia and upper respiratory infections in Chinese clinical practice. Dosage for children should be reduced proportionally based on age and body weight, typically to one-third to one-half of the adult dose. Because some individuals experience mild gastrointestinal discomfort (nausea, stomach upset, diarrhea), children should be started on the lower end of the dosage range and monitored closely. Not recommended for infants without practitioner guidance.

Dietary Advice

When taking Ai Di Cha for cough and phlegm conditions, avoid cold, raw, and greasy foods that can generate or worsen phlegm. When using it for damp-heat jaundice, avoid alcohol, spicy, and oily foods that exacerbate dampness and heat. Because mild gastrointestinal side effects are possible, taking the decoction after meals may reduce stomach discomfort.

Cautions & Warnings

Although this formula is typically safe for most individuals, it may cause side effects in some people. Pregnant women, nursing mothers, postpartum women, and those with liver disease should use the formula with caution.

As with any Chinese herbal remedy, it is advisable to seek guidance from a qualified TCM practitioner before beginning treatment.