What is Gui Zhi Fu Ling Wan used for today?

Modern practitioners use Gui Zhi Fu Ling Wan primarily for conditions involving blood stasis in the lower abdomen: uterine fibroids, ovarian cysts, endometriosis, chronic pelvic inflammatory disease, and painful or irregular menstruation with clots. It is also used for post-surgical adhesions and, by some practitioners, for prostate enlargement in men. In Japan, where Kampo medicine is integrated into mainstream healthcare, it is one of the most frequently prescribed formulas for pelvic complaints.

Can Gui Zhi Fu Ling Wan shrink fibroids?

Some clinical studies, mostly from China and Japan, suggest it may help reduce the size of small uterine fibroids and relieve associated symptoms like heavy bleeding and pain, especially when they are small and symptomatic. However, the evidence quality is moderate at best, and large fibroids or those causing significant symptoms require conventional medical evaluation. It should be viewed as a complementary option under professional supervision, never a replacement for monitoring and diagnosis.

Gui Zhi Fu Ling Wan (桂枝茯苓丸): The Cinnamon Twig and Poria Formula for Masses, Stasis, and Women's Health

What Is Gui Zhi Fu Ling Wan?

Gui Zhi Fu Ling Wan (桂枝茯苓丸) — Cinnamon Twig, Poria, and Moutan Pill — comes from the Jingui Yaolue (Essentials from the Golden Cabinet), compiled by Zhang Zhongjing around 220 CE. That makes it one of the oldest structured formulas still in daily clinical use anywhere in the world.

The original indication is terse, as Shanghan Lun-era texts are. In the chapter on women’s pregnancy disorders, Zhang Zhongjing describes a patient with a mass (癥瘕, zheng jia) in the lower abdomen, with sluggish bleeding at the due date — and says the bleeding will not stop until the mass is dissolved. His prescription: six ingredients, ground into powder, taken with the start of each day. The formula has been treating abdominal masses ever since.

What keeps it relevant is the pattern it addresses: blood stasis accumulated in the lower burner, sometimes wrapped with phlegm-dampness, producing masses, pain, and abnormal bleeding. That is a reasonable description of what fibroids, cysts, and endometriosis look like through a TCM lens — which is why this 1,800-year-old formula is now among the most studied Chinese herbal medicines in gynecology.

The Ingredients

Herb	Chinese	Role	Function in the formula
Gui Zhi (cinnamon twig)	桂枝	Chief	Warms and unblocks the channels, moves stagnant blood
Fu Ling (poria)	茯苓	Deputy	Drains dampness, protects the Spleen, anchors the formula
Mu Dan Pi (moutan bark)	牡丹皮	Deputy	Cools the blood, disperses stasis, clears heat from congealed blood
Tao Ren (peach kernel)	桃仁	Deputy	Breaks blood stasis, drains the stagnant blood downward
Bai Shao (white peony)	白芍	Assistant	Nourishes and softens, moderates the harsh draining action
Chi Shao is often substituted by some schools	—	—	To emphasize cooling and stasis-breaking

How the Design Works

The formula’s architecture is worth pausing on, because it is elegantly balanced. Masses in TCM gynecology are usually cold coagulation plus dampness wrapping blood stasis — so Gui Zhi warms and unblocks; Fu Ling drains the dampness that cushions the mass; Tao Ren and Mu Dan Pi directly break up and disperse the static blood; Bai Shao protects the legitimate blood while the others attack the stagnant blood.

There is also a deliberate temperature balance: Gui Zhi is warm, Mu Dan Pi is cool, and the formula as a whole is roughly neutral. This is one reason it suits chronic conditions that mix stasis with smoldering heat — long-standing stasis tends to generate heat, and a purely warming formula would aggravate it.

What It Treats

Classical Indication

A fixed mass in the lower abdomen — palpable, painful or painless — with:

Sluggish or persistent vaginal bleeding
Dark menstrual blood with clots
Worsening pain that is fixed in location
A dark-purple tongue or visible stasis spots

Modern Applications

Uterine fibroids (small to medium, symptomatic)
Ovarian cysts and functional cysts
Endometriosis and adenomyosis pain
Chronic pelvic inflammatory disease with masses or thickening
Dysmenorrhea with dark clotted menstrual flow
Postpartum retention of lochia, post-surgical or postpartum adhesions
In men: benign prostatic hyperplasia with stasis signs, by pattern

In Japan, Gui Zhi Fu Ling Wan is an approved Kampo medicine covered by the national health system — a fact worth knowing, because it means the formula has accumulated decades of real-world prescription data there, with published case series on fibroids, endometriosis, and even hot flashes.

Diagnostic Signs

Gui Zhi Fu Ling Wan fits when the picture is stasis with a mass, typically:

Lower abdominal fullness, pressure, or fixed pain; pain worse with pressure
Menstrual blood dark or purple, with clots; pain eased after clots pass
A dry dark complexion, or dark rings around the eyes
Tongue: purple or dark, possibly with stasis spots beneath
Pulse: deep, choppy (澀), or firm

Practitioners often contrast it with Dang Gui Shao Yao San, the other great Jingui gynecological formula, which suits a deficiency-dampness pattern with dull pain and a pale swollen tongue. The two formulas are frequently described as a complementary pair for women’s pelvic conditions: one moves and drains, one nourishes and drains.

Common Modifications

Presentation	Modification
Heavy menstrual bleeding with clots	Add Pu Huang, Wu Ling Zhi (the Shi Xiao San pair)
Marked lower abdominal cold	Add Xiao Hui Xiang, Wu Zhu Yu, or increase Gui Zhi
Severe pain	Add Yan Hu Suo, Chuan Xiong
Masses prominent	Add San Leng, E Zhu (stronger stasis-breakers)
Deficiency alongside stasis	Combine with Ba Zhen Tang or add Dang Shen, Huang Qi
Heat signs prominent	Increase Mu Dan Pi, add Chi Shao, Zao Xiu or Da Huang in small dose

Modern Research in Brief

Gui Zhi Fu Ling Wan is among the better-studied classical formulas. Clinical and experimental studies — concentrated in Chinese and Japanese journals — report effects on uterine smooth muscle, pelvic microcirculation, platelet aggregation, and modest reductions in fibroid volume in small trials. In Japan, Kampo research groups have published on its use for endometriosis-related pain and climacteric symptoms. The overall evidence base supports further study rather than definitive claims; anyone using it for a diagnosed mass should do so with imaging follow-up, not formula alone.

Precautions

Pregnancy: The original text actually discusses use in pregnancy-related masses, but modern practice treats strong blood-movers cautiously during pregnancy — professional supervision is mandatory
Heavy active bleeding: Use with care; modifications are usually needed
Menstruation: Often paused or reduced during heavy flow days, per practitioner guidance
Not for deficiency-type bleeding: Pale, watery, painless bleeding without stasis signs points elsewhere (Gui Pi Tang territory, for example)
Any palpable mass needs conventional workup first — ultrasound and, where indicated, biopsy — before herbal treatment begins

A Few Closing Thoughts

Gui Zhi Fu Ling Wan is a good example of why Zhang Zhongjing’s formulas have survived. The original clinical note — a mass that keeps bleeding until dissolved — could have been written about a fibroid yesterday. The design also teaches a lesson that generalizes beyond gynecology: chronic masses are rarely one pathology. There is stasis, there is dampness, there is often a little heat, and the formula that endures is the one that addresses all three while protecting the righteous Qi. That is why this modest six-ingredient pill, rather than some fiercer stasis-breaking concoction, remains the frontline formula for abdominal masses two millennia on.

Disclaimer: This article is for educational purposes only. Consult a licensed TCM practitioner for personalized diagnosis and treatment.