lei wan

Name: lei wan
Creator: Bencao Index

Slightly toxic

Toxicity graded by American Dragon.

About lei wan

Lei Wan is a sclerotium of the fungus Omphalia. It is bitter in flavour and cold in temperature, entering the Stomach and Large Intestine channels.

Names

Pinyin	lei wan

Classification

Channels: Large Intestine, Stomach
Flavour: Bitter
Temperature: Cold

Actions and indications

Kills parasites

Tapeworm infestation, its signature use, where it often leads the formula
Roundworm, and also hookworm and pinworm
Childhood nutritional impairment or abdominal pain from worms, with poor appetite, a sallow face and wasting

Treats tinea topically

Fungal skin infection (tinea), applied externally

Combinations

bing lang + chuan lian zi + shi jun zi + he shi + fei zi
Pain from intestinal parasites and nutritional impairment in children
he zi + bai zhu + ji nei jin + mu xiang
Nutritional impairment in children with abdominal pain, parasites, a sallow face, emaciation and chronic diarrhea
bing lang + qian niu zi + mu xiang + ku lian pi
Intestinal parasites.

Dosage

Age	Raw	Granule	Tincture	Concentrate	Frequency
Any Powders and Pills: 4-60g Do not decoct	4-60 g	—	—	—	—

Cautions

caution Parasites together with Spleen or Stomach deficiency, including Deficiency Cold: take care
caution Overuse can cause infertility
caution Prolonged use injures Yin, in men and women alike
pregnancy Traditionally avoided in pregnancy
caution Slightly toxic, with an effective dose close to the toxic one; its active enzyme is destroyed by heat, so preparation and dosing belong under professional supervision

Interactions

Antagonistic with

ge gen Antagonistic pairing with Ge Gen (Pueraria root)

Link to this herb

Paste any of these. The wording inside the link is the part that matters — it tells a search engine what this page is about, so it is filled in for you.

HTML

<a href="https://bencaoindex.com/herbs/lei-wan/">lei wan</a> — Bencao Index

Markdown

[lei wan](https://bencaoindex.com/herbs/lei-wan/) — Bencao Index

With our badge

<a href="https://bencaoindex.com/herbs/lei-wan/"><img src="https://bencaoindex.com/badges/bencao-index-160.svg" alt="Bencao Index" width="160" height="40"></a>

Free to use with a visible link back. This herb is also available as XML. See link to us for banners, the feed, and the terms.

Support

Bencao Index is free to use and free of advertising, and is paid for by one practitioner.

Make a donation