Knowledge Base/Herbs/Torreya Seed
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驱虫药 · Anthelmintic (expelling intestinal parasites)

Torreya Seed fěi zǐ · 榧子

Torreyae Semen (Torreya grandis Fort. ex Lindl. — the dried ripe seed)

Nature and flavour. Sweet, neutral. Lung, Stomach and Large Intestine systems.

The roasted seed of the Chinese torreya, a tree in the yew family, eaten as a nut across southern China and used in the materia medica as an anthelmintic. Traditional texts describe it as killing parasites and reducing accumulation, moistening the Lung to relieve cough, and moistening dryness to ease the bowels — the last two being why it also appears among the nut-like seeds rather than only among the harsher parasite herbs. It is recorded for roundworm, hookworm, pinworm and tapeworm. Its traditional indications are recorded rather than established.

性味归经。甘，平。归肺、胃、大肠经。

用药部位是红豆杉科榧树的干燥成熟种子，炒熟后在中国南方作坚果食用，同时作驱虫药入本草。传统记载为杀虫消积，兼能润肺止咳、润燥通便 —— 后两项也正是它不像峻烈的驱虫药而更像坚果类种子的原因。所载用途为蛔虫、钩虫、蛲虫、绦虫。所载传统用途属记载，尚未被证实。

Classical category · no formulas, no dosages, no herb-drug combinations are given.
Safety. Eaten as food in small amounts and generally regarded as gentle, but a medicinal amount is not the same as a handful of nuts. It is rich in fatty oil and classically avoided where the stools are loose or where there is diarrhoea. Avoid medicinal amounts in pregnancy and breastfeeding for want of data. Some classical sources record an incompatibility with mung bean; this is a recorded traditional claim and is not established by evidence. A persistent cough and any bowel change that lasts both call for a diagnosis rather than self-treatment, and suspected worm infection needs stool examination.

少量作食品食用，一般视为平和，但药用的份量不等于一把坚果。本品味甘多脂，传统列为大便溏薄或泄泻者不宜。孕期与哺乳期因数据不足，避免药用份量。部分本草记载其与绿豆相反 —— 这是传统记载的说法，未被证据证实。持续咳嗽与长期大便改变都须先明确诊断，不宜自行处理；可疑的寄生虫感染须以粪便检查确认。

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