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The Short Answer
Qing Ying Tang (Clear the Nutritive Level Decoction) is a traditional Chinese formula containing rhinoceros horn, rehmannia, and other herbs that work through heat-clearing compounds like catalpol and iridoid glycosides. The formula targets the nutritive qi level to reduce inflammatory heat patterns, fever, and mental agitation through modulation of cytokine pathways.
CategoryTraditional Chinese Medicine
GroupTraditional Chinese Medicine
Evidence LevelModerate
Primary KeywordQing Ying Tang benefits
Synergy Pairings5
Qing Ying Tang (Clear the Nutritive Level Decoction) — botanical close-up
Health Benefits
Clears heat from the nutritive level, reducing fever and preventing heat-related illnesses. - Supports mental clarity by calming the mind, which can reduce anxiety and improve focus. - Enhances skin health by detoxifying the blood, leading to a clearer complexion. - Boosts immune function by promoting healthy blood circulation, vital for nutrient delivery and waste removal. - Reduces inflammation, which can alleviate symptoms of chronic conditions like arthritis. - Promotes restful sleep by balancing internal heat, crucial for maintaining a healthy sleep cycle. - Supports cardiovascular health by improving blood vessel function, which can lower the risk of heart disease.
Origin & History
Natural habitat
Qing Ying Tang is a traditional Chinese herbal formula composed of ingredients like rhinoceros horn and rehmannia. It is typically prepared as a decoction.
“Qing Ying Tang has been used traditionally in Chinese medicine to address severe heat conditions affecting the body's nutritive level. It reflects the holistic approach of balancing internal heat.”Traditional Medicine
Scientific Research
Research on Qing Ying Tang is limited, but some studies have investigated its components for their potential anti-inflammatory and antipyretic effects. Further research is needed to validate these findings.
Preparation & Dosage
Traditional preparation
The recommended dosage is 9-15 grams per day as a decoction. Consult a healthcare provider before use.
Nutritional Profile
Qing Ying Tang is a classical TCM herbal decoction, not a single-ingredient food, so conventional macronutrient profiling does not apply in the standard sense. The formula's bioactive composition is derived from its constituent herbs, typically including: Shui Niu Jiao (Bubali Cornu, Water Buffalo Horn) as a substitute for Xi Jiao, Sheng Di Huang (Rehmannia glutinosa root, 15-30g), Xuan Shen (Scrophularia ningpoensis, 9g), Zhu Ye Xin (Bamboo leaf heart, 3g), Mai Dong (Ophiopogon japonicus, 9g), Dan Shen (Salvia miltiorrhiza, 6g), Huang Lian (Coptis chinensis, 5g), Jin Yin Hua (Lonicera japonica, 9g), and Lian Qiao (Forsythia suspensa, 6g). Key bioactive compounds include: catalpol and acteoside from Rehmannia (iridoid glycosides, ~0.3-1.2% dry weight); harpagoside and aucubin from Scrophularia; tanshinones (tanshinone IIA, cryptotanshinone) and salvianolic acids from Dan Shen (~1-3% tanshinones by dry weight); berberine, coptisine, and palmatine from Huang Lian (berberine ~5-8% dry weight, high bioavailability concerns due to P-gp efflux); chlorogenic acid and luteolin from Jin Yin Hua (~1.5-3.8% chlorogenic acid); forsythoside A and phillyrin from Lian Qiao. Polysaccharides from Ophiopogon (ophiopogonin D, ~0.02-0.05% dry weight) contribute immunomodulatory effects. The decoction as a whole contains negligible macronutrients (protein <0.5g per serving, carbohydrates primarily from polysaccharides ~2-5g per decoction, fats <0.1g). Mineral content includes trace potassium, calcium, and magnesium leached from plant materials during decoction. Bioavailability of key compounds is moderate; berberine has low oral bioavailability (~5%) due to efflux transport, while salvianolic acids show better aqueous extraction efficiency (~60-80% recovery in decoction). The formula contains no significant vitamins, dietary fiber (insoluble fiber is removed in decoction), or substantial protein. Flavonoids and phenolic acids are the primary water-soluble bioactive compounds with estimated total phenolic content of approximately 15-40 mg GAE per 100ml of prepared decoction.
How It Works
Mechanism of Action
The formula's primary compounds including catalpol from rehmannia and saponins from scrophularia modulate pro-inflammatory cytokines like TNF-α and IL-1β. These bioactive compounds cross the blood-brain barrier to influence neurotransmitter balance, particularly GABA and serotonin pathways. The heat-clearing mechanism involves inhibition of cyclooxygenase enzymes and prostaglandin synthesis.
Clinical Evidence
Clinical evidence for Qing Ying Tang is primarily based on traditional use documentation and small observational studies in TCM hospitals. Modern research includes in vitro studies showing anti-inflammatory effects of individual herb components, with some animal studies demonstrating fever reduction in rodent models. However, large-scale randomized controlled trials specifically on the complete formula are lacking. Most clinical applications rely on traditional TCM diagnostic criteria rather than Western biomarkers.
Safety & Interactions
Traditional formulations containing rhinoceros horn are now illegal and unsafe due to conservation concerns, with modern versions using water buffalo horn substitutes. The formula may interact with anticoagulant medications due to blood-moving herbs like red peony root. Contraindicated during pregnancy and in cases of yin deficiency without heat signs. Common side effects may include digestive upset and in rare cases, allergic reactions to individual herb components.
Synergy Stack
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Frequently Asked Questions
What herbs are in Qing Ying Tang formula?
Traditional Qing Ying Tang contains rhinoceros horn (now substituted with water buffalo horn), fresh rehmannia root, red peony root, scrophularia root, ophiopogon tuber, coptis rhizome, akebia stem, forsythia fruit, and bamboo leaf. Modern versions replace the rhinoceros horn with water buffalo horn for safety and conservation reasons.
How long does Qing Ying Tang take to work?
According to traditional Chinese medicine practice, Qing Ying Tang typically begins showing effects within 1-3 days for acute heat conditions like fever. For mental clarity and skin benefits, improvements may be noticed within 1-2 weeks of consistent use. The timeline depends on individual constitution and severity of heat patterns.
Can I take Qing Ying Tang with Western medications?
Qing Ying Tang may interact with blood-thinning medications like warfarin due to its blood-moving herbs such as red peony root. It should not be combined with antibiotics without professional guidance, as it may affect drug absorption. Always consult both your physician and a qualified TCM practitioner before combining with prescription medications.
What is the difference between Qing Ying Tang and other heat-clearing formulas?
Qing Ying Tang specifically targets the nutritive qi level, making it suitable for deeper heat patterns with mental symptoms like restlessness and delirium. This differs from formulas like Bai Hu Tang which clears qi-level heat, or An Gong Niu Huang Wan which addresses blood-level heat. The nutritive level represents an intermediate stage of heat penetration in TCM theory.
Is Qing Ying Tang safe for children?
Qing Ying Tang should only be used in children under strict supervision of a qualified TCM practitioner, with significantly reduced dosages based on body weight. The formula contains potent heat-clearing herbs that may be too strong for pediatric constitutions. Most TCM practitioners prefer gentler formulas like Yin Qiao San for heat conditions in children under 12 years old.
What is the recommended dosage of Qing Ying Tang and how often should I take it?
Typical dosing for Qing Ying Tang is 6-12 grams of the concentrated powder or 1-2 packets of granules taken 2-3 times daily, though individual dosage should be adjusted based on symptom severity and practitioner guidance. The decoction is usually taken warm on an empty stomach or between meals for optimal absorption. Treatment duration typically ranges from 5-14 days depending on the heat condition being addressed.
Who should avoid Qing Ying Tang or use it with caution?
Qing Ying Tang should be used cautiously by individuals with spleen yang deficiency or those prone to loose stools, as its cooling nature may exacerbate digestive weakness. It is not typically recommended for those with cold-pattern illnesses or constitutional cold conditions without professional guidance. Pregnant women should consult a qualified TCM practitioner before use, as some formulations may contain ingredients requiring modification during pregnancy.
What clinical research supports the effectiveness of Qing Ying Tang?
Traditional Chinese Medicine literature documents Qing Ying Tang's effectiveness for high fever, sepsis, and heat-related conditions affecting the blood and nutrient levels, though rigorous Western clinical trials are limited. Some studies in Chinese medical journals have shown its benefits for clearing heat-related skin conditions and reducing inflammatory markers, but more peer-reviewed research in English-language journals is needed to establish robust evidence. The formula is widely used in clinical TCM practice with documented traditional use spanning centuries.
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