Herb Fruit (果 guǒ / 果实 guǒ shí)

Fu Pen Zi

Chinese raspberry fruit · 覆盆子

Rubus chingii Hu · Fructus Rubi

Also known as: Palmleaf Raspberry Fruit

Fu Pen Zi (Chinese raspberry fruit) plant

Images shown are for educational purposes only

Chinese raspberry fruit is a gentle Kidney-strengthening herb best known for helping the body hold and consolidate its vital resources. It is most commonly used for urinary issues like frequent urination, bedwetting, and nighttime urination, as well as male reproductive concerns including low fertility, premature ejaculation, and erectile weakness. It also supports eye health when vision problems stem from Kidney and Liver depletion.

Category Astringent / Stabilizing herbs (收涩药) Herbs that secure Essence and reduce urination (固精缩尿止带药)
Therapeutic focus Kidney Health Urinary Health Men's Reproductive Health Fertility Eye Health and Vision

TCM Properties

Temperature

Slightly Warm

Taste

Sweet (甘 gān), Sour (酸 suān)

Channels entered

Liver, Kidneys, Urinary Bladder

Parts used

Fruit (果 guǒ / 果实 guǒ shí)

Available in our store
View in Store
From $23.00

Educational content • Consult qualified TCM practitioners for diagnosis and treatment

What This Herb Does

Every herb has a specific set of actions — here's what Fu Pen Zi does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Fu Pen Zi is primarily used to support these areas of health:

Kidney Health Urinary Health Men's Reproductive Health Fertility Eye Health and Vision

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Fu Pen Zi performs to restore balance in the body:

Tonifies the Kidneys and Secures Essence Secures Essence and Stops Enuresis Secures Essence and Stops Seminal Emission Nourishes the Liver and Brightens the Eyes

How these actions work

'Tonifies the Kidneys and consolidates essence' means Fù Pén Zǐ strengthens the Kidneys' ability to store and hold the body's essential reproductive and vital substances. In TCM, the Kidneys are seen as a vault for 'essence' (Jing), the fundamental substance governing growth, reproduction, and vitality. When the Kidneys are weak, essence leaks out, manifesting as fertility problems, premature aging, or general depletion. Fù Pén Zǐ's sweet taste nourishes the Kidney while its sour taste acts like a lock, keeping essence secure.

'Reduces urination and stops enuresis' refers to its ability to help the Bladder hold urine properly. The Kidneys control the Bladder's opening and closing, and when Kidney Qi is weak, the Bladder cannot hold urine well. This leads to frequent urination, nocturia, or bedwetting in children. The herb's name literally means 'overturn the chamber pot,' reflecting the traditional belief that it works so well for urine control that the pot is no longer needed.

'Nourishes the Liver and brightens the eyes' reflects that Fù Pén Zǐ enters the Liver channel and nourishes Liver-Kidney Yin. In TCM, the eyes are the 'opening' of the Liver, and adequate Liver blood and Kidney essence are needed for clear vision. When these are depleted, vision becomes dim or blurry. This action applies to age-related vision decline or eye fatigue from overwork when the underlying cause is Liver-Kidney deficiency.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony. Fu Pen Zi is used to help correct these specific patterns.

Why Fu Pen Zi addresses this pattern

Fù Pén Zǐ directly addresses the failure of the Kidneys to consolidate and hold essence and fluids. Its sweet and sour tastes work together: sweetness tonifies the Kidney, while sourness provides an astringent, binding quality that helps the Kidney 'lock' its stored substances. Its slightly warm nature gently supports Kidney Yang without creating excessive heat. This combination of nourishing and restraining is what makes it effective for conditions where Kidney Qi is too weak to maintain its holding function.

A practitioner would look for one or more of these signs

Frequent Urination

Especially increased at night due to weakened Kidney control over the Bladder

Premature Ejaculation

Kidney unable to consolidate essence

Involuntary Seminal Emission

Spermatorrhea or nocturnal emission from insecure essence gate

Urinary Incontinence

Including childhood bedwetting (enuresis)

Commonly Used For

These are conditions where Fu Pen Zi is frequently used — but only when they arise from the specific patterns it addresses, not in all cases

Arises from: Kidney Qi not Firm

TCM Interpretation

In TCM, the Kidneys govern water metabolism and control the opening and closing of the Bladder. When Kidney Qi is deficient or insecure, the Bladder loses its ability to hold urine properly, resulting in frequent urination, urgency, or nocturia. This is especially common in older adults or those with constitutional weakness. The Kidney's holding function is closely related to its 'consolidating' capacity, which keeps fluids, essence, and other substances from leaking out.

Why Fu Pen Zi Helps

Fù Pén Zǐ directly strengthens the Kidney's ability to consolidate and restrain fluids. Its sweet taste nourishes Kidney Qi, while its sour taste provides an astringent, tightening action that helps the Bladder hold urine. Classical physicians noted that this herb was so effective at reducing urination that one could 'overturn the chamber pot' (the literal meaning of its name, Fù Pén Zǐ). Its slightly warm nature gently supports the Kidney Yang that powers the Bladder's holding function.

Also commonly used for

Urinary Incontinence

Including childhood enuresis (bedwetting)

Premature Ejaculation
Involuntary Seminal Emission

Nocturnal emission and spermatorrhea

Blurry Vision

Dim vision from Liver-Kidney insufficiency

Nocturia

Excessive nighttime urination

Herb Properties

Every herb has an inherent temperature, taste, and affinity for specific channels — these properties determine how it interacts with the body

Temperature

Slightly Warm

Taste

Sweet (甘 gān), Sour (酸 suān)

Channels Entered

Liver Kidneys Urinary Bladder

Parts Used

Fruit (果 guǒ / 果实 guǒ shí)

Dosage & Preparation

These are general dosage guidelines for Fu Pen Zi — always follow your practitioner's recommendation, as dosages vary based on the formula and your individual condition

Standard dosage

6-12g

Maximum dosage

Up to 15-20g in decoctions for severe Kidney deficiency patterns, under practitioner supervision. Some paediatric enuresis recipes use up to 30g combined with food (e.g. decocted with pork), though this is a folk remedy context.

Dosage notes

The standard dose of 6-12g is used for most indications including Kidney deficiency with seminal emission, urinary frequency, or blurred vision. For stronger astringent effects (severe enuresis or spermatorrhoea), dosages toward the higher end (10-12g) are appropriate, often combined with other Kidney-securing herbs such as Sang Piao Xiao, Yi Zhi Ren, or Wu Wei Zi. For nourishing the Liver and improving vision, it pairs well with Gou Qi Zi, Shu Di Huang, and Nu Zhen Zi. Processed forms include salt-fried Fu Pen Zi (盐覆盆子), which enhances its Kidney-entering action, and wine-processed Fu Pen Zi (酒覆盆子), which improves its warming and circulating properties. The herb can also be used in pills, powders, medicinal wines, and pastes.

Preparation

No special decoction handling required. Fu Pen Zi is simply decocted with other herbs in the standard manner. It may also be taken as pills, powders, soaked in medicinal wine, or prepared as a paste.

Processing Methods

In TCM, the same herb can be prepared in different ways to change its effects — here's how processing alters what Fu Pen Zi does

Processing method

Stir-fried with salt water until dry. The fruit is mixed with dilute salt solution and heated in a wok until the moisture is absorbed.

How it changes properties

Salt processing directs the herb more strongly into the Kidney channel and enhances its Kidney-consolidating and essence-securing actions. The thermal nature remains slightly warm, but the downward-directing quality of salt strengthens the herb's ability to reach and benefit the lower body.

When to use this form

Preferred when the primary treatment goal is urinary control or securing essence, particularly for enuresis, nocturia, or seminal emission. The salt-processed form is more commonly used in clinical practice than the raw form.

Common Herb Pairs

These ingredients are traditionally combined with Fu Pen Zi for enhanced therapeutic effect

Tu Si Zi
Tu Si Zi 1:1 to 1:2 (Fù Pén Zǐ 10g : Tù Sī Zǐ 15g)

Fù Pén Zǐ and Tù Sī Zǐ together form a powerful Kidney-nourishing pair. Tù Sī Zǐ gently tonifies both Kidney Yin and Yang with a balanced, non-drying nature, while Fù Pén Zǐ adds astringent, consolidating power to lock in the essence that Tù Sī Zǐ helps generate. Together they tonify and secure simultaneously.

When to use: Kidney deficiency with both insufficiency and leakage: low sperm quality, nocturnal emission, frequent urination, and lower back weakness. This pair is the core of Wǔ Zǐ Yǎn Zōng Wán.

Gou Qi Zi
Gou Qi Zi 1:1 (Fù Pén Zǐ 10g : Gǒu Qǐ Zǐ 10g)

Gǒu Qǐ Zǐ nourishes Liver and Kidney Yin and benefits the eyes, while Fù Pén Zǐ adds astringent consolidation and also enters the Liver to brighten vision. Together they nourish and stabilize Liver-Kidney essence while mutually reinforcing their vision-improving effects.

When to use: Liver-Kidney Yin deficiency with blurred or declining vision, premature greying of hair, and lower back soreness. Also used in fertility support.

Sang Piao Xiao
Sang Piao Xiao 1:1 to 1:2 (Fù Pén Zǐ 10g : Sāng Piāo Xiāo 10-15g)

Sāng Piāo Xiāo is a strong astringent that consolidates Kidney Qi and controls the Bladder. Paired with Fù Pén Zǐ, the consolidating and urine-reducing effect is significantly amplified. Sāng Piāo Xiāo focuses on restraining urination, while Fù Pén Zǐ also nourishes the underlying Kidney deficiency.

When to use: Childhood enuresis (bedwetting), adult nocturia, or urinary incontinence from Kidney Qi deficiency. This is one of the most commonly used pairs for urinary control.

Wu Wei Zi
Wu Wei Zi 2:1 (Fù Pén Zǐ 10g : Wǔ Wèi Zǐ 5g)

Wǔ Wèi Zǐ is strongly astringent and secures Kidney essence, with a special ability to restrain leakage of fluids and essence. Paired with Fù Pén Zǐ, both herbs share sour, astringent qualities that powerfully consolidate the Kidney's holding function, while Fù Pén Zǐ contributes gentle warming and nourishment.

When to use: Seminal emission, spermatorrhea, premature ejaculation, and excessive sweating from Kidney deficiency. Both serve as Deputy herbs together in Wǔ Zǐ Yǎn Zōng Wán.

Yi Zhi Ren
Yi Zhi Ren 1:1 (Fù Pén Zǐ 10g : Yì Zhì Rén 10g)

Yì Zhì Rén warms the Kidneys, consolidates essence, and reduces urination. Combined with Fù Pén Zǐ, the pair addresses Kidney Yang deficiency with urinary leakage from two angles: Yì Zhì Rén provides stronger warming, while Fù Pén Zǐ provides more nourishment and astringency.

When to use: Cold-type urinary frequency, enuresis, and excessive salivation from Kidney-Spleen Yang deficiency. This pair is commonly found in formulas for bedwetting.

Key Formulas

These well-known formulas feature Fu Pen Zi in a prominent role

Wu Zi Yan Zong Wan 五子衍宗丸 Deputy

The definitive Kidney-nourishing fertility formula, historically called 'the number one formula for producing offspring.' Fù Pén Zǐ serves as Deputy alongside Wǔ Wèi Zǐ, providing astringent consolidation to secure the essence that the King herbs (Gǒu Qǐ Zǐ and Tù Sī Zǐ) generate. This formula perfectly showcases Fù Pén Zǐ's dual action of nourishing and securing Kidney essence.

Comparable Ingredients

These ingredients have overlapping uses — here's how to tell them apart

Jin Ying Zi
Fu Pen Zi vs Jin Ying Zi

Both consolidate Kidney essence and reduce urination. However, Jīn Yīng Zǐ (Cherokee Rose fruit) is sour and astringent with a neutral temperature, making it purely a restraining herb with no tonifying capacity. Fù Pén Zǐ is both nourishing (sweet) and restraining (sour), so it tonifies the Kidney while also consolidating. Choose Jīn Yīng Zǐ when strong astringency is the priority and the patient has enough underlying Kidney substance. Choose Fù Pén Zǐ when the patient needs both nourishment and consolidation.

Tu Si Zi
Fu Pen Zi vs Tu Si Zi

Both tonify the Kidneys and are frequently paired together. Tù Sī Zǐ is a broader Kidney tonic that nourishes both Yin and Yang, benefits the Spleen, and calms the fetus, but lacks significant astringent action. Fù Pén Zǐ has a stronger consolidating, astringent effect on essence and urination. Tù Sī Zǐ is more appropriate as a primary Kidney tonic, while Fù Pén Zǐ is better when the clinical focus is on leakage (emission, urinary incontinence).

Shan Zhu Yu
Fu Pen Zi vs Shan Zhu Yu

Both are sour, astringent herbs that consolidate Kidney essence. Shān Zhū Yú (Cornus fruit) is slightly warm, enters the Liver and Kidneys, and has a stronger overall tonifying and astringent action. It is also used for heavy sweating from collapse and excessive menstrual bleeding. Fù Pén Zǐ is milder and more specifically targeted at urinary and seminal leakage. Shān Zhū Yú is the stronger choice for severe essence depletion or emergency situations, while Fù Pén Zǐ is gentler and better suited for long-term Kidney support.

Common Substitutes & Adulterants

Related species and common adulterations to be aware of when sourcing Fu Pen Zi

Fu Pen Zi is frequently adulterated with or substituted by the fruits of other Rubus species. The most common substitute is Rubus coreanus Miq. (插田泡, Chā Tián Pào), widely used in Sichuan and other regions. While historically used in some areas, it lacks the specific pharmacological profile of the authentic herb. Other substitutes include Rubus corchorifolius (山莓, Shān Méi), Rubus idaeus (European/American raspberry, used in northeastern China), and Rubus lasiostylus (绵果悬钩子). The authentic herb (Rubus chingii Hu) is distinguished by its five-lobed palmate leaves (hence the name 掌叶覆盆子). The dried fruit of the authentic species is typically smaller (0.5 to 1.2 cm diameter), with a distinct yellow-green colour and grey-white downy hairs. Ripe or fully red fruits from any species are not suitable as medicine. Peng Lei (蓬蘽, Rubus hirsutus), though historically confused with Fu Pen Zi, is a different plant with different pharmacological actions and should not be used as a substitute.

Educational content — always consult a qualified healthcare provider or TCM practitioner before using any herb.

Toxicity Classification

Classical Chinese pharmacopoeia toxicity rating for Fu Pen Zi

Non-toxic

Fu Pen Zi is classified as non-toxic and has been listed as a 'food-medicine dual use' substance (药食同源) by China's National Health Commission since 2002. No toxic components have been identified in standard pharmacological evaluations. No special processing is required to ensure safety. The standard preparation involves brief blanching or steaming of the unripe fruit followed by sun-drying, which is done primarily for preservation rather than detoxification.

Contraindications

Situations where Fu Pen Zi should not be used or requires extra caution

Caution

Kidney deficiency with Fire (肾虚火旺): Those with signs of Yin-deficient Heat in the Kidneys, such as scanty dark urine, sensations of heat, night sweats, or a red tongue with little coating, should avoid this herb. Its warm, astringent nature can worsen Heat conditions and further damage Yin.

Caution

Difficult or painful urination due to Damp-Heat in the Lower Burner: Fu Pen Zi's astringent action retains fluid in the body. In cases where urinary difficulty is caused by Damp-Heat accumulation (with burning urination, dark urine, or turbid discharge), this herb is inappropriate as it would trap the pathogenic factor inside.

Caution

Excess-type conditions with no true Kidney deficiency: Since Fu Pen Zi is a tonifying and astringent herb, it is not suited for conditions where the symptoms (such as urinary frequency) arise from excess pathogens rather than Kidney deficiency. Using it in such cases may retain pathogens.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

No specific pregnancy contraindication is recorded in classical TCM texts for Fu Pen Zi. In fact, the Zhejiang Medicinal Plants reference (《浙江药用植物志》) lists it as having a calming (安胎) effect on the fetus. However, as an astringent herb that enters the Kidney and Bladder channels, its use during pregnancy should follow standard caution: it should only be taken under the guidance of a qualified practitioner. Some commercial preparations carry general pregnancy caution labels. Overall, at standard doses and with appropriate clinical guidance, it is not considered a high-risk herb in pregnancy.

Breastfeeding

No specific contraindication or safety concern during breastfeeding is recorded in classical or modern TCM literature for Fu Pen Zi. As a food-medicine dual-use substance with a long history of dietary consumption, it is generally considered safe. No adverse effects on lactation or transfer of harmful substances through breast milk have been reported. Standard doses are not expected to pose risk, though as with all herbal medicines during breastfeeding, practitioner guidance is advisable.

Children

Fu Pen Zi has a long traditional history of use in children, particularly for bedwetting (childhood enuresis), which is one of its most well-known paediatric indications. Classical sources describe decocting 30g with lean pork as a paediatric remedy for enuresis. For general use in children, doses should be proportionally reduced according to age and body weight. Typical paediatric doses range from one-third to one-half of the adult dose. It is considered a gentle, non-toxic herb appropriate for children when indicated.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Fu Pen Zi

No well-documented pharmaceutical drug interactions have been established for Fu Pen Zi in peer-reviewed literature. However, based on its known pharmacological properties, the following theoretical considerations apply:

  • Estrogenic medications: Laboratory studies suggest Fu Pen Zi extracts may have estrogen-like activity. Caution is theoretically warranted when combining with hormone-sensitive medications, hormone replacement therapy, or oral contraceptives, though clinical evidence of actual interaction is lacking.
  • Hypoglycaemic agents: Preclinical research indicates potential blood sugar-lowering effects. Patients on insulin or oral hypoglycaemics should monitor blood glucose if taking Fu Pen Zi concurrently.

Overall, the risk of clinically significant drug interactions is considered low given its long history as a food-medicine substance and its mild pharmacological profile.

Dietary Advice

Foods and dietary considerations when taking Fu Pen Zi

When taking Fu Pen Zi for Kidney-tonifying purposes, it is advisable to avoid excessive consumption of cold and raw foods, iced drinks, and overly greasy or heavy foods, as these can impair Spleen and Kidney function and counteract the herb's warming, consolidating effects. Foods that support the Kidney such as black sesame, walnuts, and lean meats complement its action. If using Fu Pen Zi for vision improvement, dark-coloured berries, goji berries, and liver (in moderation) may be beneficial complementary foods.

Botanical Description

Physical characteristics and morphology of the Fu Pen Zi source plant

Rubus chingii Hu (Palmleaf Raspberry, 掌叶覆盆子) is a deciduous shrub in the Rosaceae (rose) family, typically growing 2 to 3 meters tall. The young stems are green with a whitish powdery coating and bear scattered, recurved thorns. The leaves are alternate, nearly circular in outline (5 to 9 cm across), and deeply palmately divided into five lobes (occasionally seven), with a heart-shaped base and irregularly double-serrated margins. Both surfaces of the leaf veins bear fine white hairs. The leaf stalks are scattered with small prickles, and the stipules are linear.

Flowers are solitary at the tips of short branches, with five persistent sepals, five white petals that are elliptical or broadly oval (2.5 to 3.5 cm in diameter), numerous stamens, and many pistils borne on a raised receptacle. The aggregate fruit is spherical, 1.5 to 2 cm in diameter, turning red when ripe and drooping from the stem. Each small drupelet is densely covered with grey-white fine hairs. The plant flowers from March to April, with fruit ripening from May to August.

It grows naturally at low to mid elevations on hillsides, roadsides, forest edges, and in both sunny and shaded thickets. It prefers moist, humus-rich, loose soil that is not waterlogged.

Sourcing & Harvesting

Where Fu Pen Zi is sourced, when it's harvested or collected, and how to assess quality

Harvesting season

Early summer (typically late May to early June), when the fruits have become plump but are still green to yellow-green and not yet fully ripe.

Primary growing regions

Zhejiang province is the premier producing region (道地药材 dào dì yào cái) and Fu Pen Zi was selected as one of Zhejiang's new 'Eight Famous Herbals' (新浙八味) in 2018. Within Zhejiang, areas such as Chun'an, Lin'an, and Pan'an are well known. Jiangxi province (especially the Dexing area in northeastern Jiangxi, which received a national geographical indication for its Fu Pen Zi in 2011) is another major production centre. Other significant producing regions include Anhui (Huangshan area), Fujian, Jiangsu, and Guangxi provinces. The herb is widely distributed across East China, but Zhejiang material is traditionally considered the highest quality.

Quality indicators

Good quality Fu Pen Zi consists of whole, intact aggregate fruits that are plump and firm, conical or slightly flattened conical in shape (0.6 to 1.3 cm tall, 0.5 to 1.2 cm in diameter). The surface colour should be predominantly yellow-green (黄绿色), which indicates proper harvesting at the correct unripe stage. A light, clean fragrance should be present. The taste should be distinctly sour with slight astringency. Each small drupelet should show grey-white fine hairs on its back, with clearly visible net-like texturing on the sides. The persistent calyx at the base should be brownish. Avoid material that is reddish-brown (indicating over-ripeness, which is more prone to mould), broken, or mixed with stems and leaves. Zhejiang-produced material is traditionally regarded as the best quality.

Classical Texts

Key passages from the classical Chinese medical texts that describe Fu Pen Zi and its therapeutic uses

Shén Nóng Běn Cǎo Jīng (《神农本草经》)

Original (listed under the name Péng Lěi 蓬蘽): 「蓬蘽，味酸，平。安五藏，益精气，长阴令坚，强志倍力，有子。久服轻身不老。一名覆盆。」

Translation: "Péng Lěi, sour in flavour, neutral in nature. It calms the five Zang organs, enriches essence and Qi, strengthens the reproductive function, bolsters willpower and physical strength, and promotes fertility. Long-term use lightens the body and prevents aging. Another name is Fù Pén."

Míng Yī Bié Lù (《名医别录》)

Original: 「覆盆子，味甘，平，无毒。主益气轻身，令发不白。五月采实。」

Translation: "Fù Pén Zǐ, sweet in flavour, neutral in nature, non-toxic. It mainly boosts Qi, lightens the body, and prevents premature greying of hair. The fruit is harvested in the fifth lunar month."

Běn Cǎo Tōng Xuán (《本草通玄》)

Original: 「覆盆子，甘平入肾，起阳治痿，固精摄溺，强肾而无燥热之偏，固精而无凝涩之害，金玉之品也。」

Translation: "Fù Pén Zǐ, sweet and neutral, enters the Kidney. It raises Yang and treats impotence, secures essence and controls urination. It strengthens the Kidney without the drawback of drying Heat, and astringes essence without the harm of causing stagnation. It is truly a precious substance."

Běn Cǎo Zhèng Yì (《本草正义》)

Original (excerpt): 「覆盆，为滋养真阴之药，味带微酸，能收摄耗散之阴气而生精液，故寇宗奭谓益肾缩小便，服之当覆其溺器，语虽附会，尚为有理。」

Translation: "Fù Pén is a herb that nourishes true Yin. Its slightly sour flavour can astringe and gather the Yin Qi that has been leaking away, thereby generating essence and fluids. Therefore, Kou Zongshi said it benefits the Kidney and reduces urination, and that after taking it one may overturn the chamber pot. Although the explanation is somewhat fanciful, it is not without reason."

Historical Context

The history and evolution of Fu Pen Zi's use in Chinese medicine over the centuries

Fu Pen Zi has a documented medicinal history of over two thousand years. It first appeared under the alternate name Péng Lěi (蓬蘽) in the Shén Nóng Běn Cǎo Jīng, China's earliest materia medica, where it was classified as a superior-grade herb. The Míng Yī Bié Lù (compiled during the Wei-Jin period, attributed to Tao Hongjing) was the first text to record "Fù Pén Zǐ" (覆盆子) as a separate entry distinct from Péng Lěi, clarifying that the fruit is harvested in the fifth lunar month.

The name "覆盆" has two traditional explanations. One, based on the shape of the aggregate fruit which resembles an upturned basin, was noted by the Běn Cǎo Jīng Jí Zhù. The more famous explanation comes from the Song dynasty physician Kou Zongshi in the Běn Cǎo Yǎn Yì, who wrote that Fu Pen Zi so effectively reduces nighttime urination that one could "overturn the chamber pot" (覆其溺器) after taking it. This colourful folk etymology became the standard explanation in later texts. Kou Zongshi was also the first to explicitly attribute the "reducing urination" function to Fu Pen Zi.

Fu Pen Zi is a key ingredient in the famous formula Wǔ Zǐ Yǎn Zōng Wán (五子衍宗丸, "Five Seeds Progeny Pill"), one of the most celebrated Kidney-tonifying prescriptions in Chinese medicine, which combines five seed-type herbs to nourish the Kidney and support fertility. In the Chinese Pharmacopoeia, the sole authorised botanical source is Rubus chingii Hu (华东覆盆子), distinguishing it from closely related Rubus species that were historically used interchangeably in some regions.

Modern Research

3 published studies investigating the pharmacological effects or clinical outcomes of Fu Pen Zi

1

Comprehensive phytochemistry and pharmacology review of Rubus chingii Hu (2019)

Yu G, Luo Z, Zhou Y, et al. Rubus chingii Hu: A Review of the Phytochemistry and Pharmacology. Frontiers in Pharmacology, 2019, 10:799.

This systematic review compiled all known chemical constituents of Rubus chingii, identifying over 235 compounds including triterpenoids, diterpenoids, flavonoids, and organic acids. The review summarized pharmacological evidence for antioxidant, anti-inflammatory, anticancer, antimicrobial, and anti-osteoporotic activities demonstrated in laboratory studies.

PubMed
2

Bioactive components, pharmacological effects, and drug development review (2023)

Li Y, Xie Q, You J, et al. Bioactive components, pharmacological effects, and drug development of traditional herbal medicine Rubus chingii Hu (Fu-Pen-Zi). Frontiers in Nutrition, 2022, 9:1052504.

A comprehensive review summarising recent advances in Rubus chingii research, covering its bioactive terpenoids, flavonoids, alkaloids, phenolic acids, and polysaccharides. It highlighted the main pharmacological effects including antioxidant, anti-inflammatory, and anti-tumour activities, and discussed the current status of drug development from this herb.

PubMed
3

Rubus chingii Hu: botany, traditional uses, phytochemistry, and pharmacology overview (2020)

Sheng JY, Wang SQ, Liu KH, et al. Rubus chingii Hu: an overview of botany, traditional uses, phytochemistry, and pharmacology. Chinese Journal of Natural Medicines, 2020, 18(6):401-416.

This review from the Chinese Journal of Natural Medicines provided a detailed overview of the botanical characterization, traditional uses, chemical constituents, and pharmacological activities of Rubus chingii, including antioxidant, anti-inflammatory, antitumour, antifungal, antithrombotic, antiosteoporotic, and hypoglycaemic effects demonstrated in preclinical models.

PubMed

Research on individual TCM herbs is growing but still limited by Western clinical trial standards. These studies provide emerging evidence and should be considered alongside practitioner expertise.