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This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.
Compiled from 27 PubMed articles · model: gemma4:31b
Summary
Shaoyao-Gancao-Tang (SGT) is a traditional Chinese medicine formulation composed of Paeonia lactiflora and Glycyrrhiza (typically G. uralensis or G. glabra) used primarily to treat pain and asthma [PMID: 36868437, 30760647].
Background
Also known as Jakyak-Gamcho-tang or Shakuyaku-Kanzo-To, this formulation typically combines Paeonia lactiflora and Glycyrrhiza in a 1:1 ratio [PMID: 30760647, 30510632, 34106880].
Traditional uses
It has been used for thousands of years to treat dysmenorrhea [PMID: 22389128], various types of pain [PMID: 36868437, 22161762], muscle pain and cramps [PMID: 32085792], and to alleviate asthma [PMID: 36868437].
Active compounds
Key active compounds include paeoniflorin, albiflorin, oxypaeoniflorin, benzoylpaeoniflorin [PMID: 25431610, 22161762], and glycyrrhizic acid (glycyrrhizin), liquiritin, isoliquiritin, liquiritigenin, and isoliquiritigenin [PMID: 25431610, 29126014].
Mechanism of action
The combo exerts neuroprotection by reducing oxidative stress, reactive oxygen species (ROS), and neuroinflammation [PMID: 30510632, 34106880]. It inhibits protein aggregation (tau and Aβ) [PMID: 30510632, 34106880] and down-regulates the TRPV1 channel for analgesic effects [PMID: 27785943]. In asthma, it may regulate the Th1/Th2 ratio and alter gut microbiota [PMID: 36868437]. Isoliquiritigenin specifically acts as a uterine and tracheal smooth muscle relaxant via the cGMP/PKG pathway [PMID: 22389128, 18462716].
Clinical evidence
Evidence ARestless Leg Syndrome (RLS)
Clinical trials have demonstrated that SGT may improve RLS (systematic review protocol) [PMID: 33019415]
Evidence DArthritic Pain
Exerted analgesic and anti-inflammatory effects by down-regulating TRPV1 in rat models [PMID: 27785943]
Evidence DAsthma
Regulated Th1/Th2 ratio and altered gut microbiota in OVA-induced asthma rat models [PMID: 36868437]
Reduced protein aggregation (Tau, Aβ, polyQ) and suppressed neuroinflammation (NLRP1, NLRP3, NO) in cell and mouse models [PMID: 30760647, 30510632, 34106880, 33494411]
Safety & adverse effects
No specific adverse effects are detailed in the provided abstracts, though a protocol for a systematic review is assessing safety in RLS patients [PMID: 33019415].
Drug interactions
Co-administration with antibiotics (e.g., amoxicillin, metronidazole, ofloxacin) or laxatives (sodium picosulfate) significantly reduces the bioavailability of active metabolites like 18beta-glycyrrhetic acid and paeonimetabolin-I by inhibiting intestinal bacteria [PMID: 16259766, 14713369, 12724036, 17097282, 11767109].
Evidence summary
The evidence is primarily based on pre-clinical animal models (rats, mice) and in vitro cell studies (Level D), with one systematic review protocol (Level A) and one clinical trial protocol (Level B) regarding RLS and DOMS respectively.
PubMed sources
1.PMID: 33509239 (2021) — Therapeutic roles of natural remedies in combating hereditary ataxia: A systematic review. · Chinese medicine
2.PMID: 36868437 (2023) — Shaoyao-Gancao-Tang regulates the T-helper-type 1/T-helper-type 2 ratio in the lung and gut and alters gut microbiota in rats with ovalbumin-induced asthma. · Journal of ethnopharmacology
3.PMID: 30760647 (2019) — Shaoyao Gancao Tang (SG-Tang), a formulated Chinese medicine, reduces aggregation and exerts neuroprotection in spinocerebellar ataxia type 17 (SCA17) cell and mouse models. · Aging
4.PMID: 30510632 (2018) — Formulated Chinese Medicine Shaoyao Gancao Tang Reduces Tau Aggregation and Exerts Neuroprotection through Anti-Oxidation and Anti-Inflammation. · Oxidative medicine and cellular longevity
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— Formulated Chinese medicine Shaoyao Gancao Tang reduces NLRP1 and NLRP3 in Alzheimer's disease cell and mouse models for neuroprotection and cognitive improvement.
· Aging
6.PMID: 16259766 (2005) — Bioavailability of glycyrrhizin from Shaoyao-Gancao-Tang in laxative-treated rats. · The Journal of pharmacy and pharmacology
7.PMID: 33019415 (2020) — Effectiveness and safety of traditional Chinese medicine Shaoyao Gancao Tang for the treatment of restless leg syndrome: A protocol for systematic review and meta-analysis. · Medicine
8.PMID: 27785943 (2016) — A Chinese Herbal Decoction, Shaoyao-Gancao Tang, Exerts Analgesic Effect by Down-Regulating the TRPV1 Channel in a Rat Model of Arthritic Pain. · The American journal of Chinese medicine
9.PMID: 39686413 (2024) — Network pharmacology integrated with molecular docking and molecular dynamics simulations to explore the mechanism of Shaoyao Gancao Tang in the treatment of asthma and irritable bowel syndrome. · Medicine
10.PMID: 14713369 (2003) — Repetitive administration of Shaoyao-Gancao-tang to rats restores the bioavailability of glycyrrhizin reduced by antibiotic treatment. · The Journal of pharmacy and pharmacology
11.PMID: 22161762 (2012) — Pharmacokinetic comparisons of albiflorin and paeoniflorin after oral administration of Shaoyao-Gancao-Tang and single herb Paeony decoction to rats. · Planta medica
12.PMID: 12724036 (2003) — Influence of co-administered antibiotics on the pharmacokinetic fate in rats of paeoniflorin and its active metabolite paeonimetabolin-I from Shaoyao-Gancao-tang. · The Journal of pharmacy and pharmacology
13.PMID: 29126014 (2018) — Evaluation on the concentration change of paeoniflorin and glycyrrhizic acid in different formulations of Shaoyao-Gancao-Tang by the tri-level infrared macro-fingerprint spectroscopy and the whole analysis method. · Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
14.PMID: 17097282 (2007) — Interaction between Shaoyao-Gancao-Tang and a laxative with respect to alteration of paeoniflorin metabolism by intestinal bacteria in rats. · Phytomedicine : international journal of phytotherapy and phytopharmacology
15.PMID: 14600406 (2003) — Restorative effect of repetitive administration of Shaoyao-Gancao-tang on bioavailability of paeoniflorin reduced by antibacterial synthetic drugs treatment in rats. · Biological & pharmaceutical bulletin
16.PMID: 25431610 (2014) — Simultaneous Determination of Nine Active Compounds of the Traditional Chinese Medicinal Prescription Shaoyao-Gancao-Tang and Analysis of the Relationship between Therapeutical Effect and Compatibility of Medicines. · Evidence-based complementary and alternative medicine : eCAM
17.PMID: 33494411 (2021) — Pathomechanism Characterization and Potential Therapeutics Identification for Parkinson's Disease Targeting Neuroinflammation. · International journal of molecular sciences
18.PMID: 22389128 (2012) — Analgesic and uterine relaxant effects of isoliquiritigenin, a flavone from Glycyrrhiza glabra. · Phytotherapy research : PTR
19.PMID: 33343676 (2020) — An Investigation of the Molecular Mechanisms Underlying the Analgesic Effect of Jakyak-Gamcho Decoction: A Network Pharmacology Study. · Evidence-based complementary and alternative medicine : eCAM
20.PMID: 11767109 (2001) — The influence of commonly prescribed synthetic drugs for peptic ulcer on the pharmacokinetic fate of glycyrrhizin from Shaoyao-Gancao-tang. · Biological & pharmaceutical bulletin
21.PMID: 32085792 (2020) — Jakyakgamcho-tang in the relief of delayed-onset muscle soreness in healthy adults: study protocol for a randomized, double-blind, placebo-controlled, crossover design clinical trial. · Trials
22.PMID: 17112794 (2007) — One-step immunochromatographic separation and ELISA quantification of glycyrrhizin from traditional Chinese medicines. · Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
23.PMID: 17202675 (2007) — Isoliquiritigenin, one of the antispasmodic principles of Glycyrrhiza ularensis roots, acts in the lower part of intestine. · Biological & pharmaceutical bulletin
24.PMID: 27747446 (2017) — The effects of 18β-glycyrrhetinic acid and glycyrrhizin on intestinal absorption of paeoniflorin using the everted rat gut sac model. · Journal of natural medicines
25.PMID: 15974477 (2005) — Protective effect of jakyak-gamcho-tang extract and its constituents against t-BHP-induced oxidative damage in HT22 cells. · The American journal of Chinese medicine
26.PMID: 18462716 (2008) — Isoliquiritigenin, a flavonoid from licorice, relaxes guinea-pig tracheal smooth muscle in vitro and in vivo: role of cGMP/PKG pathway. · European journal of pharmacology
27.PMID: 22792804 (2012) — [Effect of Shaoyao Gancao Tang on function and expression of P-glycoprotein in Caco-2 cells]. · Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica