Ān Chōng Tāng is a traditional Chinese herbal formula most commonly used to help stabilize pregnancy and stop uterine bleeding, especially when due to Deficiency + Heat patterns.

✅ Primary Functions

• Calms the fetus
• Stops abnormal uterine bleeding
• Tonifies Qi and Blood
• Clears Heat and stabilizes the Chong (Penetrating Vessel)

🔎 Clinical Indications

Traditionally used when there is:

• Threatened miscarriage
• Vaginal bleeding during pregnancy
• Blood deficiency with heat stirring the blood
• Weak constitution

Typical presentation may include:

• Restlessness
• Weakness + fatigue
• Pale or sallow complexion
• Warm sensation
• Vaginal bleeding

🌿 Common Ingredients

(Exact herbal combinations vary by lineage)
A typical composition includes:

• Huang Qin (Scutellaria)
• Bai Zhu (Atractylodes)
• Dang Gui (Angelica)
• Shu Di Huang (Rehmannia)
• E Jiao (Gelatin)
• Xu Duan (Dipsacus)
• Sha Ren (Amomum)
• Gan Cao (Licorice)
  …and other herbs to nourish Blood, calm the fetus, and clear heat.

⚠️ Notes / Cautions

• Should be prescribed by a trained TCM practitioner
• Not suitable for all presentations of bleeding in pregnancy
  (e.g., not used for Bleeding due to Cold)
• Contraindicated without pattern differentiation

Ān Chōng Tāng — Formula Overview

安冲汤 · “Stabilize the Penetrating Decoction”
Primary focus: Calm fetus • Stop bleeding • Nourish Qi + Blood • Clear Heat • Stabilize the Chong

Indicated when Chong + Ren deficiency → Heat → uterine bleeding / threatened miscarriage.

✅ Ingredients List

Some versions omit or substitute herbs; this represents a commonly accepted modern composite.

✅ Traditional Dosage Range (decoction)

Typical modern clinic ranges — adjust per case

Shu Di Huang — 12–18 g
Dang Gui — 9–12 g
E Jiao — 6–9 g (melt in)
Huang Qin — 6–9 g
Bai Zhu — 9–12 g
Ren Shen / Dang Shen — 6–9 g
Xu Duan — 9–15 g
Bai Shao — 9–12 g
Sha Ren — 3–6 g (add last)
Ai Ye Tan — 6–10 g
Chuan Xiong — 6–9 g
Yi Tang — 15–30 g (melt in)

✅ Functions

• Stabilizes and cools the Chong vessel
• Nourishes Qi and Blood
• Stops uterine bleeding
• Clears heat
• Calms fetus

✅ Clinical Presentation (Common Use)

Used for threatened miscarriage or vaginal bleeding during pregnancy due to:

• Qi + Blood deficiency
• Leading to unstable Chong + Ren
• With heat

Key symptoms:

• Vaginal bleeding (bright or slight dark red)
• Weakness / fatigue
• Dry mouth
• Warm sensation
• Pale or dull complexion
• Pale tongue w/ scanty coat
• Thin or rapid pulse

✅ Formula Logic

• Tonify Blood → Shu Di, Dang Gui, Bai Shao, E Jiao
• Tonify Qi to contain blood → Ren Shen/Dang Shen, Bai Zhu, Yi Tang
• Calm fetus + stabilize Chong/Ren → Xu Duan, Sha Ren
• Clear heat → Huang Qin
• Stop bleeding → Ai Ye Tan, E Jiao
• Move + regulate blood to prevent stasis → Chuan Xiong
• Harmonize → Gan Cao

✅ Modifications

➕ For more heat signs

• Add Di Gu Pi
• Add Mu Dan Pi
• Increase Huang Qin

➕ For more Blood deficiency

• Increase Shu Di
• Increase E Jiao

➕ For Qi deficiency predominance

• Increase Ren Shen / Dang Shen
• Add Huang Qi

➕ For cold abdomen / cold womb

• Add Wu Zhu Yu
• Add Rou Gui (very low dose)

➕ For pronounced bleeding

• Add Xian He Cao
• Add Pu Huang
• Add Ce Bai Ye

➕ For back soreness / Kidney deficiency

• Add Tu Si Zi
• Add Du Zhong

✅ Contraindications

🚫 Not appropriate for bleeding from:

• Cold + deficiency without heat
• Blood stasis without deficiency
• Trauma
• Excess Heat without deficiency

Use only under qualified clinical supervision, especially during pregnancy.

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