Liquorice liquid extract
Licorice allergenic extract is used in allergenic testing.
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4 branded products available
Therapeutically similar medicines
Similarity is based on WHO Anatomical Therapeutic Chemical (ATC) classification and on a factual NHS dm+d therapeutic-grouping code prefix. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
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NHS UK identifiers
SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0.
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Academic studies and reviews for this medicine's active substance
Showing the 50 most relevant studies.
Reviews & meta-analyses: 17 · Randomised trials: 6 · 1950–2026
Showing the 50 most relevant studies, sorted by most relevant.
G. Pastorino, L. Cornara, S. Soares, et al.
Phytotherapy Research, 2018
Indrapriyadharshini Karthikeyan, Kiruppashini Thiagarajan
JCDR Research and Publications, 2026
Raj JP, Saxena U, Belhekar MN, et al.
2025
- Glycyrrhiza
- Gastroesophageal Reflux
- Plant Extracts
IntroductionLiquorice (Glycyrrhiza glabra) is a traditional herbal remedy with various pharmacological activities mainly used for digestive and respiratory ailments. GutGard® is a flavonoid-rich, deglycyrrhizinated liquorice root extract and is standardized to glabridin (≥3.5% w/w), and others viz., glabrol, eicosanyl caffeate, docosyl caffeate, and total flavonoids (≥10% w/w) with glycyrrhizin (≤3.0% w/w) as glycyrrhizin causes electrolyte imbalance, hypertension, and water retention. Hence, the objective of the current study was to assess the efficacy, safety, and tolerability of GutGard® in managing gastroesophageal reflux (GER)-related symptoms when compared to placebo.MethodsIt was a double-blind, parallel group, randomized, placebo-controlled trial with participants randomized in a 1:1 ratio to either the placebo group or GutGard® group. The duration of the interventions/treatment was for 28 days and the follow-up visits were done at day 7, day 14, day 28, and day 35. A telephonic follow-up was also done on day 21. The primary outcome measures studied was the change in the Gastroesophageal Reflux Disease-Health-Related Quality of Life and the Gastroesophageal Reflux Disease Symptom Assessment Scale.ResultsWe screened a total of n = 296 participants and enrolled n = 200 participants and obtained written, informed consent from them. Participants in the GutGard® group reported a significantly better quality of life at the end of the intervention period (p = 0.014). They also reported earlier resolution of symptoms of GER as against the placebo group, especially the symptoms of heartburn (p = 0.017 on day 14 and p = 0.005 on day 28) and regurgitation (p = 0.025 on day 7, p = 0.029 on day 14, and p = 0.022 on day 28).ConclusionsThe GutGard® group showed better and earlier resolution (within 2 weeks) of symptoms of GER as against the placebo group, especially heartburn and regurgitation.IntroductionLiquorice (Glycyrrhiza glabra) is a traditional herbal remedy with various pharmacological activities mainly used for digestive and respiratory ailments. GutGard® is a flavonoid-rich, deglycyrrhizinated liquorice root extract and is standardized to glabridin (≥3.5% w/w), and others viz., glabrol, eicosanyl caffeate, docosyl caffeate, and total flavonoids (≥10% w/w) with glycyrrhizin (≤3.0% w/w) as glycyrrhizin causes electrolyte imbalance, hypertension, and water retention. Hence, the objective of the current study was to assess the efficacy, safety, and tolerability of GutGard® in managing gastroesophageal reflux (GER)-related symptoms when compared to placebo.MethodsIt was a double-blind, parallel group, randomized, placebo-controlled trial with participants randomized in a 1:1 ratio to either the placebo group or GutGard® group. The duration of the interventions/treatment was for 28 days and the follow-up visits were done at day 7, day 14, day 28, and day 35. A telephonic follow-up was also done on day 21. The primary outcome measures studied was the change in the Gastroesophageal Reflux Disease-Health-Related Quality of Life and the Gastroesophageal Reflux Disease Symptom Assessment Scale.ResultsWe screened a total of n = 296 participants and enrolled n = 200 participants and obtained written, informed consent from them. Participants in the GutGard® group reported a significantly better quality of life at the end of the intervention period (p = 0.014). They also reported earlier resolution of symptoms of GER as against the placebo group, especially the symptoms of heartburn (p = 0.017 on day 14 and p = 0.005 on day 28) and regurgitation (p = 0.025 on day 7, p = 0.029 on day 14, and p = 0.022 on day 28).ConclusionsThe GutGard® group showed better and earlier resolution (within 2 weeks) of symptoms of GER as against the placebo group, especially heartburn and regurgitation.
Abstract licence: CC BY-NC
Dikshita Mehta, Leena Selvamary, S. G. Ramesh Kumar, et al.
Addicta: The Turkish Journal on Addictions, 2026
Anna Åstrand, Annelie Joelsson, Karin Rådholm, et al.
PLoS ONE, 2026
- Glycyrrhiza
- Phenols
- Isoflavones
S Gopalakrishnan, Manisha Manoj, Akshatha Anand, et al.
Athenaeum Scientific Publishers, 2026
J Cinatl, B Morgenstern, G Bauer, et al.
The Lancet, 2003
PaulM. Stewart, Rossella Valentino, A.Michael Wallace, et al.
The Lancet, 1987
Cristina Fiore, Michael Eisenhut, Eugenio Ragazzi, et al.
Journal of Ethnopharmacology, 2005
Yan Pan, Li Jun Wu, Zeng Liang Yu
Plant Growth Regulation, 2006
Sources: aggregated from Europe PMC (EMBL-EBI), OpenAlex, Crossref, PubMed and other open scholarly databases. Retracted articles are excluded. Study information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
None known
Half-life
Not available
Mechanism
Not available
Food interactions
None known
Human targets
None mapped
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
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Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
DrugBank citations
If you use DrugBank data in your research, please cite:
- DrugBank 6.02024Recommended citationKnox C., Wilson M., Klinger C.M., et alDrugBank 6.0: the DrugBank Knowledgebase for 2024Nucleic Acids Res. 2024 Jan 552(D1):D1265-D1275
- DrugBank 5.02018Wishart D.S., Feunang Y.D., Guo A.C., et alDrugBank 5.0: a major update to the DrugBank database for 2018Nucleic Acids Res. 2017 Nov 846(D1):D1074-D1082
- DrugBank 4.02014Law V., Knox C., Djoumbou Y., et alDrugBank 4.0: shedding new light on drug metabolismNucleic Acids Res. 2014 Jan 142(1):D1091-7
- DrugBank 3.02011Knox C., Law V., Jewison T., et alDrugBank 3.0: a comprehensive resource for 'omics' research on drugsNucleic Acids Res. 2011 Jan39(Database issue):D1035-41
- DrugBank 2.02008Wishart D.S., Knox C., Guo A.C., et alDrugBank: a knowledgebase for drugs, drug actions and drug targets.Nucleic Acids Research2008 Jan36(Database issue):D901-6
- DrugBank 1.02006Wishart D.S., Knox C., Guo A.C., et alDrugBank: a comprehensive resource for in silico drug discovery and exploration.Nucleic Acids Research2006 Jan 134(Database issue):D668-72