The Herb Cabinet 本草

当归 dāng guī

Angelica sinensis · dong quai

Warm Sweet · Pungent LiverHeartSpleen

“When the blood is tired, this is the first drawer my hand goes to. It nourishes and moves at once — a rare talent, and the reason they call it the women's ginseng.” — Lao Xinglin

What the tradition says

If the blood were a river, dang gui would be both rain and current: the tradition's foremost blood tonic that also moves what it builds^[1]. That double talent — nourishing without congealing, invigorating without depleting — made the fragrant root the backbone of gynecology in the classical pharmacy: menstrual irregularity, scanty or painful periods, postpartum depletion, plus the general pallor-dizziness-dryness picture of blood deficiency in anyone^[1]. It appears in more blood-building formulas than any other herb, from Xiao Yao San to Gui Pi Tang, and the name — "ought to return" — carries its old promise of restoring what was lost.

What the research says

Modern trials, mostly on menopausal symptoms, are inconclusive — dong quai alone has not clearly outperformed placebo^[2]. Laboratory work shows more interesting signals (protective effects against chemotherapy toxicity in animal models) alongside a finding that matters for safety: extracts have shown estrogenic activity, stimulating estrogen-dependent cells in the lab^[2].

Where to be careful

• Blood thinners: dang gui can add to the effect of warfarin and other

anticoagulants — this combination needs a clinician's supervision^[2].

• Hormone-sensitive conditions: because of the estrogenic signal in

laboratory studies, people with hormone-sensitive cancers are advised to avoid it^[2].

• Sun sensitivity: photosensitivity reactions are reported^[2].
• Tradition adds its own caution: it moistens, so it is withheld in damp,

loose-bowel patterns^[1] — and, like most blood-movers, in pregnancy except under professional care.

In the pharmacy

The aromatic root of Angelica sinensis, sweet-pungent and instantly recognizable in a decoction. Classical practice distinguishes the parts — head, body, and tail — with the tail credited more with moving blood and the body with nourishing it^[1].

Reviewed 2026-08-25