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Kingdom: Plant

Origin in PRC Pharmacopoeia: Citrus aurantium L.; Citrus sinensis Osbeck. (PRC Pharmacopoeia)

Origin in unofficial sources: Citrus aurantium L.*; Citrus wilsonii Tanaka; Citrus aurantium L. var. amara Engl.; Poncirus trifoliata (L.) Raf.

Use: Medicinal

Category: Qì-rectifying agents

Properties: Acrid and bitter; cool; nontoxic*.

Channel entry: Lung, spleen, and large intestine channels.

Actions and indications: Breaks qì, moves phlegm, disperses accumulation. Similar to 枳实 but milder in action, and hence more suitable for weaker patients. Treats phlegm stagnation in the chest and diaphragm; glomus in the chest; rib-side distension; food accumulation; belching; retching counterflow; diarrhea with heaviness in the rectum; prolapse of the rectum or uterus.

Dosage and method: Oral: Decoct (3–9g, 15–60g for large doses), or makes as powders or powder. Topical: Decoct as a wash or apply as a hot pack.

Warnings: Use with care in pregnancy and spleen-stomach vacuity.

Product description: Similar to unripe bitter orange (zhǐ shí), but supplied with the flesh removed, squashed flat, and cut into slices.

Quality: Fruits with blackish green skins are the best.

See: Zhǐ shí (枳实 Aurantii Fructus Immaturus, unripe bitter orange)

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