Large-leaf gentian root (Qinjiao)
Pharmaceutical Name: Radix Gentianae macrophyllae
Botanical Name: 1. Gentiana macrophylla pall.. 2. Gentiana crassicaulis Duthie ex Burkill. 3. Gentiana dahurica Fisch.. 4. Gentiana straminea Maxim.
Common Name: Large-leaf gentian root
Source of Earliest Record: Shennong Bencao Jing
Part Used: The roots are dug in spring or autumn. After the fibrous root bark has been removed, the roots are cleaned, dried in the sun and cut into slices.
Natural Properties & Taste: Bitter, pungent and slightly cold
Meridians: Stomach, liver and gall bladder
1. To dispel wind and dampness.
2. To clear heat caused by yin deficiency.
1. Wind-damp obstruction syndrome: a) pain with heat signsLarge-leaf gentian root (Qinjiao) is used with Tetrandra root (Fangji) and Honeysuckle stem (Rendongteng). b) pain with cold signsLarge-leaf gentian root (Qinjiao) is used with Notopterygium root (Qianghuo), Pubescent angelica root (Duhuo), Cinnamon twigs (Guizhi) and Prepared aconite root (Fuzi).
2. Afternoon fever caused by deficient yin. Large-leaf gentian root (Qinjiao) is used with Sweet wormwood (Qinghao), Turtle shell (Biejia), Anemarrhena rizome (Zhimu) and Wolfberry bark (Digupi) in the formula Qinjiao Biejia Tang.
3. Damp-heat jaundice. Large-leaf gentian root (Qinjiao) is used with Oriental wormwood (Yinchenhao) and Capejasmine (Zhizi).
Dosage: 5-10 g
Cautions & Contraindications: This herb is contraindicated for a person with a weak constitution or in cases suffering from diarrhea.