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Ceccuzzi G, Rapino A, Perna B, Costanzini A, Farinelli A, Fiorica I, Marziani B, Cianci A, Rossin F, Cesaro AE, Spampinato MD, De Giorgio R, Guarino M. Liquorice Toxicity: A Comprehensive Narrative Review. Nutrients 2023; 15:3866. [PMID: 37764649 PMCID: PMC10537237 DOI: 10.3390/nu15183866] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/26/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Renowned since ancient times for its medical properties, liquorice is nowadays mainly used for flavoring candies or soft drinks. Continuous intake of large amounts of liquorice is a widely known cause of pseudo-hyperaldosteronism leading to hypertension and hypokalemia. These manifestations are usually mild, although in some cases may generate life-threatening complications, i.e., arrhythmias, muscle paralysis, rhabdomyolysis, and coma. In addition, liquorice has an important estrogenic-like activity. METHODS We summarized the current knowledge about liquorice and reviewed 104 case reports in both the English and Italian languages from inception to June 2023 concerning complications due to an excess of liquorice intake. RESULTS In contrast to most published data, female sex and old age do not appear to be risk factors. However, hypertension and electrolyte imbalance (mainly hypokalemia) are prevalent features. The detection of glycyrrhetinic acid in blood is very uncommon, and the diagnosis is essentially based on an accurate history taking. CONCLUSIONS Although there is not a significant mortality rate, liquorice toxicity often requires hospitalization and therefore represents a significant health concern. Major pharmaceutical drug regulatory authorities should solicit public awareness about the potentially dangerous effects caused by excessive use of liquorice.
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Affiliation(s)
- Giovanna Ceccuzzi
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Alessandro Rapino
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Benedetta Perna
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Anna Costanzini
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Andrea Farinelli
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Ilaria Fiorica
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Beatrice Marziani
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Antonella Cianci
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Federica Rossin
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Alice Eleonora Cesaro
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Michele Domenico Spampinato
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
- Department of Emergency, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy
| | - Roberto De Giorgio
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
| | - Matteo Guarino
- Department of Translational Medicine, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy; (G.C.); (A.R.); (B.P.); (A.C.); (A.F.); (I.F.); (B.M.); (A.C.); (F.R.); (A.E.C.); (M.D.S.); (M.G.)
- Department of Emergency, St. Anna University Hospital of Ferrara, University of Ferrara, 44124 Ferrara, Italy
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Sile I, Teterovska R, Onzevs O, Ardava E. Safety Concerns Related to the Simultaneous Use of Prescription or Over-the-Counter Medications and Herbal Medicinal Products: Survey Results among Latvian Citizens. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6551. [PMID: 37623137 PMCID: PMC10454617 DOI: 10.3390/ijerph20166551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/04/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023]
Abstract
The use of herbal medicines is increasing worldwide. While the safety profile of many herbal medicines is promising, the data in the literature show important interactions with conventional drugs that can expose individual patients to high risk. The aim of this study was to investigate the experience of the use of herbal medicines and preparations and the risks of interactions between herbal and conventional medicines among Latvian citizens. Data were collected between 2019 and 2021 using a structured questionnaire designed for pharmacy customers in Latvia. Electronic databases such as Drugs.com, Medscape, and European Union herbal monographs were reviewed for the risk of drug interactions and potential side effects when herbal medicines were involved. The survey included 504 respondents. Of all the participants, 77.8% used herbal preparations. Most of the participants interviewed used herbal remedies based on the recommendation of the pharmacist or their own initiative. A total of 38.3% found the use of herbal remedies safe and harmless, while 57.3% of respondents regarded the combination of herbal and regular drugs as unsafe. The identified herbal medicines implicated in the potential risk of serious interactions were grapefruit, St. John's wort, and valerian. As the risks of herb-drug interactions were identified among the respondents, in the future, both pharmacy customers and healthcare specialists should pay more attention to possible herb-drug interactions of over-the-counter and prescription medications.
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Affiliation(s)
- Inga Sile
- Department of Applied Pharmacy, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia
- Latvian Institute of Organic Synthesis, 21 Aizkraukles Street, LV-1006 Riga, Latvia
| | - Renate Teterovska
- Department of Pharmaceutical Chemistry, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia;
- Department of Pharmacy, Riga Stradins University Red Cross Medical College, 5 J. Asara Street, LV-1009 Riga, Latvia;
| | - Oskars Onzevs
- Department of Commerce, Turība University, 68 Graudu Street, LV-1058 Riga, Latvia;
| | - Elita Ardava
- Department of Pharmacy, Riga Stradins University Red Cross Medical College, 5 J. Asara Street, LV-1009 Riga, Latvia;
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Moreira J, Machado M, Dias-Teixeira M, Ferraz R, Delerue-Matos C, Grosso C. The neuroprotective effect of traditional Chinese medicinal plants-A critical review. Acta Pharm Sin B 2023; 13:3208-3237. [PMID: 37655317 PMCID: PMC10465969 DOI: 10.1016/j.apsb.2023.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/23/2023] [Accepted: 04/03/2023] [Indexed: 09/02/2023] Open
Abstract
Neurodegenerative and neuropsychiatric diseases are increasingly affecting individuals' quality of life, thus increasing their cost to social and health systems. These diseases have overlapping mechanisms, such as oxidative stress, protein aggregation, neuroinflammation, neurotransmission impairment, mitochondrial dysfunction, and excitotoxicity. Currently, there is no cure for neurodegenerative diseases, and the available therapies have adverse effects and low efficacy. For neuropsychiatric disorders, such as depression, the current therapies are not adequate to one-third of the patients, the so-called treatment-resistant patients. So, searching for new treatments is fundamental. Medicinal plants appear as a strong alternative and complement towards new treatment protocols, as they have been used for health purposes for thousands of years. Thus, the main goal of this review is to revisit the neuroprotective potential of some of the most predominant medicinal plants (and one fungus) used in traditional Chinese medicine (TCM), focusing on their proven mechanisms of action and their chemical compositions, to give clues on how they can be useful against neurodegeneration progression.
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Affiliation(s)
- João Moreira
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto 4249-015, Portugal
| | - Mariana Machado
- Ciências Químicas e das Biomoléculas/CISA, Escola Superior de Saúde—Instituto Politécnico do Porto, Porto 4200-072, Portugal
| | - Mónica Dias-Teixeira
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto 4249-015, Portugal
- NICiTeS—Núcleo de Investigação em Ciências e Tecnologias da Saúde, Escola Superior de Saúde Ribeiro Sanches, Lisboa 1950-396, Portugal
| | - Ricardo Ferraz
- Ciências Químicas e das Biomoléculas/CISA, Escola Superior de Saúde—Instituto Politécnico do Porto, Porto 4200-072, Portugal
- REQUIMTE/LAQV, Departamento de Química e Bioquímica Faculdade de Ciências, Universidade do Porto, Porto 4169-007, Portugal
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto 4249-015, Portugal
| | - Clara Grosso
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto 4249-015, Portugal
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Jafari F, Jafari M, Moghadam AT, Emami SA, Jamialahmadi T, Mohammadpour AH, Sahebkar A. A Review of Glycyrrhiza glabra (Licorice) Effects on Metabolic Syndrome. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1328:385-400. [DOI: 10.1007/978-3-030-73234-9_25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Smedegaard SB, Svart MV. Licorice induced pseudohyperaldosteronism, severe hypertension, and long QT. Endocrinol Diabetes Metab Case Rep 2019; 2019:EDM190109. [PMID: 31829973 PMCID: PMC6935715 DOI: 10.1530/edm-19-0109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 11/22/2019] [Indexed: 11/08/2022] Open
Abstract
SUMMARY Excessive intake of licorice may cause pseudohyperaldosteronism which, in turn, may lead to hypertension and hypokalemia. Severe hypokalemia may lead to electrocardiogram (ECG) changes including long QT interval potentially progressing into malignant arrhythmias. Here we present a 43-year-old woman admitted to the hospital with chest pain and a stinging sensation in the upper extremities. Her peak blood pressure was 177/98 mmHg and the blood test revealed low plasma potassium of 1.9 mmol/L. The ECG revealed flattened T-waves and long QT interval. Prior to admission, the patient had increased licorice ingestion to a total of some 70 g daily. The licorice intake was stopped and potassium was administrated orally and intravenously. Plasma potassium normalized and the ECG changes remitted. To our knowledge a few other cases of licorice-induced pseudohyperaldosteronism and long QT interval have previously been reported. This underlines the importance of quantifying licorice intake in younger people with unexplained high blood pressure and low potassium. LEARNING POINTS Even small amounts of licorice daily may increase the risk of developing hypertension; therefore, licorice should be asked for specifically. Even though licorice intake is very easy to cover in the patient's history, it is often missed. Excessive licorice intake may course severe hypokalemia causing long QT interval in the ECG recording, potentially progressing into arrhythmias and even cardiac arrest/sudden death. Hypokalemia <3 mmol/L and present ECG changes should be treated with potassium intravenously. Licorice-induced hypertension may be associated with syndrome of apparent mineralocorticoid excess (SAME). Plasma renin and aldosterone are both low at diagnosis and normalize when licorice is stopped.
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Affiliation(s)
| | - Mads Vandsted Svart
- Department of Internal Medicine, Horsens Regional Hospital, Horsens, Denmark
- Department of Internal Medicine and Endocrinology (DoH), Aarhus University Hospital, Aarhus N, Denmark
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Bioactive Candy: Effects of Licorice on the Cardiovascular System. Foods 2019; 8:foods8100495. [PMID: 31615045 PMCID: PMC6836258 DOI: 10.3390/foods8100495] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/07/2019] [Accepted: 10/09/2019] [Indexed: 12/15/2022] Open
Abstract
Licorice, today chiefly utilized as a flavoring additive in tea, tobacco and candy, is one of the oldest used herbs for medicinal purposes and consists of up to 300 active compounds. The main active constituent of licorice is the prodrug glycyrrhizin, which is successively converted to 3β-monoglucuronyl-18β-glycyrrhetinic acid (3MGA) and 18β-glycyrrhetinic acid (GA) in the intestines. Despite many reported health benefits, 3MGA and GA inhibit the 11-β-hydrogenase type II enzyme (11β-HSD2) oxidizing cortisol to cortisone. Through activation of mineralocorticoid receptors, high cortisol levels induce a mild form of apparent mineralocorticoid excess in the kidney and increase systemic vascular resistance. Continuous inhibition of 11β-HSD2 related to excess licorice consumption will create a state of hypernatremia, hypokalemia and increased fluid volume, which can cause serious life-threatening complications especially in patients already suffering from cardiovascular diseases. Two recent meta-analyses of 18 and 26 studies investigating the correlation between licorice intake and blood pressure revealed statistically significant increases both in systolic (5.45 mmHg) and in diastolic blood pressure (3.19/1.74 mmHg). This review summarizes and evaluates current literature about the acute and chronic effects of licorice ingestion on the cardiovascular system with special focus on blood pressure. Starting from the molecular actions of licorice (metabolites) inside the cells, it describes how licorice intake is affecting the human body and shows the boundaries between the health benefits of licorice and possible harmful effects.
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