Herb

Zhe Bei Mu

Zhejiang Fritillary bulb | 浙贝母

Also known as:

Zhejiang Fritillary Bulb

Parts Used

Bulb (鳞茎 lín jīng)

*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

Zhejiang Fritillary bulb is a cold, bitter herb best known for clearing heat from the lungs and dissolving phlegm to relieve cough. It is especially valued for its ability to soften and disperse hard lumps and nodules, such as swollen lymph nodes, thyroid nodules, and breast lumps. Compared to its close relative Chuān Bèi Mǔ (Sichuan Fritillary), it is stronger at clearing heat and breaking up accumulations but less moistening.

Herb Category

Main Actions

  • Clears Heat and Transforms Phlegm
  • Stops Cough
  • Clears toxins and disperses abscesses
  • Dissipates Nodules and Softens Hardness

How These Actions Work

'Clears Heat and resolves phlegm' means this herb cools down excess heat in the Lungs that produces thick, yellow, sticky phlegm. Its cold and bitter nature descends and drains, making it particularly effective when a cough is caused by external Wind-Heat or internal Fire producing heavy phlegm. It is commonly paired with herbs like Sang Ye (Mulberry leaf) and Xing Ren (Apricot kernel) for this purpose.

'Clears toxins and disperses abscesses' means it can address hot, swollen, painful infections and sores, including lung abscess (lung pus), breast abscess, and boils. It works by cooling the Heat-toxin that drives the infection and helping the body break down the accumulation of pus and swelling. It is often combined with Lian Qiao (Forsythia) and Pu Gong Ying (Dandelion) for these conditions.

'Dissipates nodules and softens hardness' refers to its well-known ability to dissolve lumps and masses caused by the binding of phlegm and stagnation. This makes it a go-to herb for conditions like scrofula (swollen lymph nodes along the neck), thyroid nodules, and breast lumps. It is frequently combined with Xuan Shen (Scrophularia) and Mu Li (Oyster shell) for this purpose.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Zhe Bei Mu 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 Zhe Bei Mu addresses this pattern

When Heat lodges in the Lungs and scorches the body's fluids into thick, sticky phlegm, coughing becomes forceful and the sputum is typically yellow and difficult to expectorate. Zhè Bèi Mǔ's bitter and cold nature directly targets this pathomechanism: the bitterness descends and drains Lung Qi to stop coughing, while the cold temperature clears the Heat that is congealing the phlegm. Its ability to enter the Lung channel makes it a frontline herb for this pattern, particularly when it arises from external Wind-Heat invasion or when Fire blazes internally.

A practitioner would look for one or more of these signs

Hypochondrial Pain That Is Worse On Coughing And Breathing

Forceful cough with thick yellow sputum

Sputum

Phlegm that is yellow, sticky, and hard to cough up

Sore Throat

Red, sore throat with a feeling of heat

Chest Stiffness

Oppressive feeling in the chest

TCM Properties

Temperature

Cold

Taste

Bitter (苦 kǔ)

Channels Entered
Heart Lungs
Parts Used

Bulb (鳞茎 lín jīng)

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

Product Details

Manufacturing, supplier, and product specifications

Product Type

Granules

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Botanical & Sourcing

Quality Indicators

Good quality Zhe Bei Mu has thick, fleshy scale leaves that are white to pale yellow on the surface, covered with white powder (from lime processing). The texture should be hard and crisp, breaking cleanly to reveal a white to pale yellowish cross-section that is markedly starchy (powdery). The taste should be distinctly bitter, with a very faint smell. Between the two commercial forms, "Yuan Bao Bei" (the crescent-shaped single scales from larger bulbs) is considered superior to "Zhu Bei" (smaller whole bulbs). Inferior material has a greyish-white surface and a brownish-red center in cross-section, indicating poor quality or improper processing. Look for: plump, starchy pieces; uniform white color; strong bitterness; absence of insect damage, mold, or discoloration.

Primary Growing Regions

Zhe Bei Mu is one of the famous "Eight Herbs of Zhejiang" (浙八味, Zhe Ba Wei) and is considered the foremost among them. It originally comes from Xiangshan (象山) in Ningbo, Zhejiang province. The primary production areas today are in Zhejiang's Yinzhou (鄞州) district (especially Zhangshui town, known as the "Home of Zhe Bei Mu"), Pan'an (磐安), Jinyun (缙云), and Dongyang (东阳). Zhejiang province accounts for approximately 90% of the national output. Smaller quantities are also cultivated in Jiangsu (Nantong, Suzhou, Taizhou), Anhui, Hunan, Fujian, and Jiangxi. The Zhejiang-grown herb is considered the authentic "dao di" (terroir) material.

Harvesting Season

Late spring to early summer (May to June), when the above-ground stems and leaves have withered.

Supplier Information

Treasure of the East

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Miscellaneous Info

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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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Traditional Dosage Reference

Standard

5–10g

Maximum

Up to 15g in acute conditions with strong Heat-Phlegm or toxic swelling, under practitioner supervision.

Notes

Use 5–6g for mild phlegm-heat cough. Use 6–10g for more pronounced heat-phlegm patterns or to support the clearing of lung heat. For dispersing nodulations (such as in scrofula, goiter, or breast lumps), use toward the upper end of the range (9–10g) and combine with appropriate nodule-resolving herbs like Xuan Shen and Mu Li. When ground into powder for direct ingestion (a common method), the dose is typically 1–2g per serving, taken 2–3 times daily, which is more efficient than decoction for this herb. The bitter, cold nature means that doses should be kept moderate in patients with any tendency toward Spleen weakness.

Toxicity Classification

Non-toxic

Zhe Bei Mu is classified as non-toxic in the Chinese Pharmacopoeia and is generally safe at standard dosages. Its main active alkaloids (peimine/peiminine) have a relatively wide safety margin. In mouse studies, the minimum lethal dose for intravenous injection of peimine and peiminine was reported at 9 mg/kg. At large doses, Fritillaria alkaloids can cause moderate blood pressure reduction and respiratory depression. Clinical toxicity from oral decoction at standard doses is not a significant concern. The primary safety issue is the classical incompatibility with Aconitum alkaloids, where co-administration can dramatically increase toxicity.

Contraindications

Avoid

Incompatible with Wu Tou (Aconitum) preparations: must not be used together with Chuan Wu, Cao Wu, or Fu Zi. This is one of the classical Eighteen Incompatibilities (十八反), and modern research confirms that co-administration can increase the dissolution of toxic aconitine alkaloids.

Caution

Spleen and Stomach deficiency Cold with watery, white phlegm: Zhe Bei Mu is bitter and cold in nature, which can further damage the Spleen Yang and worsen cold-damp phlegm conditions. It should only be used for Heat-type phlegm patterns.

Caution

Cold-phlegm or damp-phlegm cough with thin, clear, copious sputum: the cold nature of Zhe Bei Mu is inappropriate for these patterns and may worsen symptoms.

Caution

Prolonged use or high doses in patients with weak digestion: the bitter, cold properties can impair appetite and cause loose stools or diarrhea.

Classical Incompatibilities

Zhe Bei Mu is listed among the Eighteen Incompatibilities (十八反): Bei Mu (all types, including Zhe Bei Mu and Chuan Bei Mu) is incompatible with Wu Tou (乌头), which includes Chuan Wu (川乌), Cao Wu (草乌), and Fu Zi (附子). The classical mnemonic states: "半蒌贝蔹芨攻乌" (Ban, Lou, Bei, Lian, Ji all oppose Wu). Co-administration may increase the dissolution of toxic aconitine-type alkaloids and amplify toxicity. The Chinese Pharmacopoeia explicitly states that Zhe Bei Mu should not be used together with Aconitum-family herbs.

Special Populations

Pregnancy

No specific pregnancy contraindication is listed for Zhe Bei Mu in the Chinese Pharmacopoeia. However, as a bitter and cold herb, it should be used cautiously during pregnancy because its cold nature may theoretically affect the Spleen and Stomach, potentially impairing digestion and nutrient absorption needed during pregnancy. It does not have known uterine-stimulating effects. Use only when clearly indicated (such as acute lung heat with phlegm) and under practitioner guidance.

Breastfeeding

No specific data on the transfer of Zhe Bei Mu alkaloids into breast milk is available. As a bitter, cold herb, prolonged use could theoretically reduce the mother's Spleen function and affect digestion and milk production. Short-term use at standard doses for acute conditions is unlikely to pose significant risk. Consult a qualified practitioner before use during breastfeeding.

Pediatric Use

Zhe Bei Mu can be used in children at reduced, age-appropriate doses. Due to its bitter taste and cold nature, it may be poorly tolerated by young children and can affect their typically delicate digestive systems. Generally, children under 3 years should use one-quarter to one-third of the adult dose; children aged 3–7 may use one-third to one-half. Grinding to powder and mixing with honey or pear (a traditional preparation) can improve palatability and reduce gastric irritation. Avoid prolonged use in children with weak digestion or poor appetite.

Drug Interactions

Aconitine-containing preparations: Must not be combined with any Aconitum-derived pharmaceutical preparations (including processed aconite products used in some traditional medicine contexts). Modern research confirms that Fritillaria alkaloids combined with aconitine alkaloids can synergistically increase toxicity.

Antihypertensive medications: Zhe Bei Mu alkaloids (peimine, peiminine) have been shown in pharmacological studies to cause moderate blood pressure reduction at larger doses. Patients taking antihypertensive drugs should use Zhe Bei Mu cautiously, as there may be an additive hypotensive effect.

Central nervous system depressants: Peimine and peiminine have demonstrated sedative and central depressant effects in animal studies. Caution is warranted when combining with sedatives, anxiolytics, or opioid analgesics, as effects may be additive.

Respiratory depressants: At high doses, Fritillaria alkaloids can suppress respiration. Avoid combining with other respiratory depressants in vulnerable populations.

Dietary Advice

When taking Zhe Bei Mu to clear Lung Heat and resolve phlegm, avoid greasy, fried, and heavily spiced foods, as these can generate more phlegm and Heat, counteracting the herb's effects. Cold, raw foods should be moderated if the patient's digestion is already weak, since Zhe Bei Mu's cold nature may further burden the Spleen. Pear (especially steamed with Zhe Bei Mu powder and rock sugar) is a traditionally recommended food pairing that complements the herb's lung-moistening and phlegm-resolving actions.

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.