2. Methodology
The methodology section outlines the research design, data collection, and analysis approaches used to explore the scientific validation, challenges, and future prospects of herbal medicine. Given the interdisciplinary nature of herbal medicine research, this methodology integrates both qualitative and quantitative methods, drawing from ethnobotanical studies, pharmacological research, clinical trials, and systematic reviews of existing literature.
2.1. Research Design
The current study adopted a systematic review approach, compiling data from peer-reviewed journals, articles, books, and reputable databases (e.g., PubMed, Scopus, Google Scholar) to provide an overview of the scientific validation and future potential of herbal medicine. The goal is to present an evidence-based assessment of current trends, identify gaps in research, and suggest pathways for further exploration in the field.
2.2. Data Collection
Literature Review
1) Inclusion Criteria: Only studies published in the past 10 years (2013-2023) in English-language journals and those related to scientific validation, pharmacological studies, clinical trials, and regulatory challenges of herbal medicine were considered.
2) Exclusion Criteria: Studies focusing on non-pharmacological aspects of herbal medicine, such as cultural practices or ethnobotanical surveys not tied to scientific evidence, were excluded.
Data Sources:
1) Peer-reviewed journals (e.g., Journal of Ethnopharmacology, Phytotherapy Research, Planta Medica)
2) Government and regulatory body reports (e.g., WHO, FDA, EMA)
3) Clinical trial databases (e.g., ClinicalTrials.gov)
4) Online databases (PubMed, Scopus, Google Scholar)
Clinical Trials and Experimental Studies
Data from clinical trials that assessed the efficacy and safety of herbal medicines were included. These trials should have been randomized, controlled, and double-blind, if available, to ensure reliable and reproducible results. Additionally, preclinical studies assessing the pharmacokinetics and toxicity of herbal compounds were reviewed.
Expert Interviews
To complement the published literature, expert opinions from researchers, practitioners, and regulatory bodies in the field of herbal medicine were gathered through interviews. These interviews helped identify current challenges, emerging trends, and the future outlook for herbal medicine in healthcare systems.
2.3. Data Analysis
Qualitative Analysis
1) Content Analysis: The data from literature reviews, expert interviews, and regulatory documents were analyzed through content analysis. Themes related to scientific validation, safety concerns, challenges, and future prospects of herbal medicine were identified.
2) Comparative Analysis: Studies examining similar herbal products were compared to assess differences in therapeutic efficacy, dosage, side effects, and quality control practices.
Quantitative Analysis
1) Statistical Analysis: Where clinical data or trial outcomes were available, statistical tools (e.g., meta-analysis) were applied to evaluate the effectiveness of herbal medicines for specific conditions (e.g., cancer, diabetes, anxiety).
2) Impact Assessment: Quantitative data on the growth of the herbal medicine market, the number of published studies, and the number of registered clinical trials were analyzed to assess the progress and future trends in the field.
2.4. Ethical Considerations
1) Informed Consent for Expert Interviews: All experts participating in interviews were provided with clear information about the purpose of the study, and consent was obtained prior to data collection.
2) Confidentiality: All collected data were anonymized to maintain the confidentiality of participants and the sources of the research.
3) Conflict of Interest: The researchers ensured that no conflicts of interest were present in the review process by only including peer-reviewed literature and verifying the objectivity of expert sources.
Limitations
1) Language Bias: Only English-language studies were included, which may exclude relevant research published in other languages.
2) Availability of Data: A limitation in the availability of high-quality clinical trials and standardized experimental protocols on herbal medicines may have restricted the depth of some sections, especially related to the safety and efficacy of specific herbal products.
3) Data Variability: The variability in research methods and herbal preparation standards across different studies made it challenging to draw definitive conclusions in certain areas.
3. Herbal Medicine
3.1. The Challenges Faced by Herbal Medical Practitioners
Herbal medicine has been a cornerstone of healthcare systems for centuries, with traditional knowledge forming the basis for many modern pharmaceuticals. Despite its widespread use, a significant gap exists between traditional herbal practices and scientifically validated medicine. The primary challenge lies in the lack of rigorous scientific validation, which limits the acceptance of herbal medicine in mainstream healthcare. Many herbal formulations lack standardized dosages, quality control measures, and comprehensive clinical trials, raising concerns about their safety, efficacy, and potential interactions with conventional drugs. Regulatory bodies such as the World Health Organization (WHO), the U.S. Food and Drug Administration (FDA), and the European Medicines Agency (EMA) have established guidelines for herbal medicine. However, the variability in plant composition due to environmental factors, inconsistent extraction methods, and the presence of contaminants hinder the development of standardized herbal treatments. Additionally, the absence of large-scale clinical trials further limits the ability of healthcare providers to integrate herbal medicine into evidence-based practice. With increasing global interest in natural and holistic treatments, there is an urgent need to bridge the gap between traditional herbal knowledge and modern pharmacological research. This study aims to address the challenges associated with the scientific validation of herbal medicine by exploring existing research methodologies, identifying gaps in standardization and regulation, and assessing future prospects for integrating herbal medicine into conventional healthcare. By addressing these issues, this research seeks to contribute to the development of safer, more effective, and scientifically validated herbal therapies.
3.2. Scientific Significance of Herbal Medicine
The growing reliance on herbal medicine, both in traditional and modern healthcare systems, necessitates its scientific validation to ensure safety, efficacy, and standardization. According to the World Health Organization (WHO), approximately 80% of the global population, particularly in developing and underdeveloped countries, depends on herbal remedies for primary healthcare. However, the lack of rigorous scientific evaluation prevents their full integration into modern medical practice (
Figure 1). The use of herbal medicine and its study is justified for by the following reasons:
1) Bridging the Gap Between Tradition and Science
Herbal medicine has provided valuable therapeutic solutions for centuries, yet many plant-based treatments lack robust clinical evidence. Scientific validation through phytochemical analysis, preclinical studies, and clinical trials is essential to confirm the pharmacological activity of herbal compounds and facilitate their acceptance in modern medicine.
2) Ensuring Safety and Efficacy
One of the primary concerns with herbal medicine is the inconsistency in plant composition due to environmental factors, variations in processing methods, and potential contamination. Without proper validation, patients may be exposed to ineffective or harmful treatments. This study aims to highlight the need for standardization and regulatory measures to enhance the safety and reliability of herbal therapies.
3) Addressing Regulatory Challenges
Regulatory bodies such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA) have established guidelines for herbal products. However, the lack of uniform global standards creates challenges in quality control and commercialization. This research will explore regulatory frameworks and recommend strategies for improving approval processes for herbal medicines.
4) Advancing Integrative Medicine
Herbal medicine has shown potential in managing chronic diseases such as diabetes, cancer, and neurodegenerative disorders. By validating herbal treatments through modern research methodologies, healthcare practitioners can confidently integrate them with conventional therapies, offering patients a broader range of treatment options.
5) Harnessing Technological Innovations
Recent advancements in biotechnology, nanotechnology, and artificial intelligence (AI) are revolutionizing herbal drug discovery. This study will explore how these technologies can enhance the scientific evaluation, formulation, and delivery of herbal medicines, paving the way for innovative and effective plant-based treatments.
Figure 1. The challenges and perspectives of herbal drug discovery.
3.3. Historical Context and Evolution of Herbal Medicine
Herbal medicine, a foundational element of traditional healing systems worldwide, dates back thousands of years. From the ancient Egyptian use of medicinal plants documented in the Ebers Papyrus (around 1550 BCE) to the Classical Greek medicine of Hippocrates and Galen, plants have been the cornerstone of medical treatments
[12] | Fabricant, D. S. and Farnsworth, N. R. 2001. The value of plants used in traditional medicine for drug discovery. Environmental Health Perspectives. 109(1): 69-75. |
[12]
. Over centuries, traditional healers in various cultures, such as Chinese, Indian, and Native American medicine, have documented the therapeutic properties of plants, laying the groundwork for modern pharmacology. With the advent of modern pharmacology, however, herbal medicine saw a decline in favor of synthetic pharmaceutical drugs, due to their perceived higher potency and standardization. Despite this shift, there has been resurgence in interest in herbal remedies in recent decades, driven by factors such as increasing consumer awareness of side effects associated with synthetic drugs, the global move towards integrative medicine, and the rise of chronic diseases, which require long-term management
[13] | Sarker, S. D., Linder, K., Scott, J. M. 2018. Herbal medicine: From ancient wisdom to modern science. International Journal of Pharmaceutical Sciences and Research. 9(4): 1730-1737. |
[13]
.
3.4. Scientific Importance, Limitations and Prospects of Herbal Medicine
1) Phytochemical and Pharmacological Studies
A significant body of literature has focused on the phytochemical composition of medicinal plants, which includes bioactive compounds responsible for their therapeutic effects. Studies have identified a variety of phytochemicals, including alkaloids, flavonoids, terpenoids, and phenolic compounds, which contribute to the pharmacological activities of herbs
[14] | Heinrich, M., Appendino, G., Efferth, T., Fürst, R., Izzo, A. A., Kayser, O., Viljoen, A. 2020. Best practice in research: Consensus statement on the investigation of herbal medicines. Journal of Ethnopharmacology. 246: 112230. |
[14]
. For instance, the alkaloid curcumin from
Curcuma longa (turmeric) is widely recognized for its anti-inflammatory and antioxidant properties, with evidence supporting its use in the treatment of osteoarthritis and other inflammatory diseases
[15] | Hewlings, S. J. and Kalman, D. S. 2017. Curcumin: A review of its effects on human health. Foods. 6(10): 92. |
[15]
. Similarly, the flavonoid resveratrol, found in red wine and the roots of
Polygonum cuspidatum, has garnered attention for its cardiovascular benefits and potential anti-cancer properties. Multiple studies have demonstrated its ability to modulate oxidative stress, inflammation, and gene expression, contributing to its therapeutic potential
[16] | Baur, J. A. and Sinclair, D. A. 2006. Therapeutic potential of resveratrol: The in vivo evidence. Nature Reviews Drug Discovery. 5(6): 493-506. |
[16]
. Another example is the use of
Ginkgo biloba in cognitive enhancement and memory improvement, with several clinical trials supporting its efficacy in treating Alzheimer's disease and dementia
[17] | Yuan, Y., Xu, S., Xu, W. 2016. Ginkgo biloba extract in the treatment of Alzheimer's disease. Cochrane Database of Systematic Reviews. 12: 4 pp. |
[17]
.
2) Pharmacological Mechanisms and Bioactivity
Research has increasingly focused on understanding the mechanisms through which herbal medicines exert their therapeutic effects. For instance,
St. John’s Wort (
Hypericum perforatum) has been studied for its antidepressant properties; with studies showing that its active compounds (hypericin and hyperforin) interact with serotonin, dopamine, and norepinephrine receptors in the brain, potentially enhancing mood regulation
[18] | Linde, K., Berner, M., Vickers, A. 2015. St John's wort for major depression. Cochrane Database of Systematic Reviews. 12: 3 pp. |
[18]
. Furthermore,
Echinacea purpurea, commonly used to boost the immune system, has been shown to modulate immune cell activity, particularly enhancing phagocytosis and cytokine production
[19] | Schulten, L., Duda, M., O'Keefe, A. 2020. Echinacea for the prevention and treatment of upper respiratory tract infections: A systematic review and meta-analysis. Cochrane Database of Systematic Reviews. 2: 3 pp. |
[19]
. Many of these mechanisms are still being elucidated, with some studies indicating that herbs may act through multiple pathways to exert their effects. For example,
Ginseng has shown to impact a range of pathways, from neuroprotection to anti-cancer activity, highlighting the complexity of herbal medicines and the necessity of studying their multi-target bioactivity.
3) Clinical Trials and Efficacy
Clinical evidence supporting herbal medicine has expanded significantly in recent years. Systematic reviews and meta-analyses of randomized controlled trials (RCTs) have provided strong evidence for the effectiveness of several herbal treatments. For example,
Black Cohosh (
Cimicifuga racemosa) has been shown in clinical trials to alleviate menopausal symptoms such as hot flashes and night sweats
[20] | Crawford, P., Hendricks, J. M., and McKenna, R. 2016. Black cohosh for menopausal symptoms: A systematic review. Journal of Clinical Nursing. 25(9-10): 1265-1277. |
[20]
. Similarly,
Ginger (
Zingiber officinale) has been validated through clinical trials as an effective treatment for nausea, particularly in pregnancy-related morning sickness
[21] | Grob, S., Largilliere, M., Garofalo, F., Mariani, J. 2017. Ginger for nausea and vomiting in pregnancy: A systematic review and meta-analysis. American Journal of Obstetrics and Gynecology. 216(4): 370-377. |
[21]
. Despite this, challenges remain in terms of the quality and rigor of some clinical trials, including small sample sizes, lack of standardization in herbal preparations, and insufficient reporting on adverse effects. This issue is particularly prevalent in herbal medicine research, where different formulations, dosages, and methods of administration can complicate comparisons across studies
[22] | Miller, S. C., Martello, J., Gawda, B. 2019. Challenges in the clinical testing of herbal medicines. Phytotherapy Research. 33(8): 2121-2132. |
[22]
(Miller
et al., 2019).
Figure 2. Global market statistics for herbal medicines and practices.
4) Regulatory and Safety Issues (Limitations)
The regulation of herbal medicine is one of the most debated areas in the field. Unlike synthetic drugs, which undergo extensive clinical testing and regulatory approval processes, herbal medicines often face challenges in terms of quality control, standardization, and safety evaluation. In many countries, herbal medicines are considered dietary supplements and thus are not subject to the same rigorous testing required for pharmaceuticals
[11] | Süntar, I. 2020. Importance of ethnopharmacological studies in drug discovery: Role of medicinal plants. Phytochemistry Reviews. 19(5): 1199-1209. |
[11]
. This lack of regulation has raised concerns regarding the purity, potency, and safety of herbal products available on the market. The issue of adulteration is particularly concerning. In some cases, herbal products have been found to contain heavy metals, pesticides, or other pharmaceutical drugs
[17] | Yuan, Y., Xu, S., Xu, W. 2016. Ginkgo biloba extract in the treatment of Alzheimer's disease. Cochrane Database of Systematic Reviews. 12: 4 pp. |
[17]
. Furthermore, interactions between herbal medicines and prescription drugs are not always well-understood, with some herbs such as
Ginkgo biloba and
St. John’s Wort known to interfere with anticoagulant therapy or anti-depressant medications
[23] | Teschke, R., Schwarzenboeck, A., Wiese, M. 2013. Drug interactions with herbal medicines. Journal of Clinical Pharmacy and Therapeutics. 38(5): 347-355. |
[23]
.
To address these challenges, several countries have implemented regulations aimed at ensuring the safety and efficacy of herbal medicines. The European Medicines Agency (EMA) and the U.S. Food and Drug Administration (FDA) have introduced guidelines for herbal products, emphasizing the importance of quality control, good manufacturing practices (GMP), and proper labeling
[14] | Heinrich, M., Appendino, G., Efferth, T., Fürst, R., Izzo, A. A., Kayser, O., Viljoen, A. 2020. Best practice in research: Consensus statement on the investigation of herbal medicines. Journal of Ethnopharmacology. 246: 112230. |
[14]
. In addition, the World Health Organization (WHO) has developed guidelines for the traditional use of herbal medicines, stressing the importance of evidence-based research to validate their safety and efficacy
[5] | World Health Organization (WHO) 2019. WHO global report on traditional and complementary medicine. Retrieved from www.who.int on February 04, 2025. |
[5]
.
5) Future Trends and Opportunities
The future of herbal medicine lies in its integration with modern healthcare practices. One emerging trend is the use of phytopharmacogenomics, which combines the study of pharmacogenomics with phytotherapy to understand how genetic factors influence the effectiveness of herbal treatments
[24] | Rottmann, M., Jacoby, D., Müller, M. 2020. Phytopharmacogenomics: A promising approach to precision herbal medicine. Phytomedicine. 70: 153227. |
[24]
. Advances in nanotechnology are also promising, as they can enhance the bioavailability and controlled release of herbal compounds, improving their therapeutic outcomes
[8] | Süntar, I. 2020. Nanotechnology and herbal medicine: The way forward. Current Topics in Medicinal Chemistry. 20(10): 905-918. |
[11] | Süntar, I. 2020. Importance of ethnopharmacological studies in drug discovery: Role of medicinal plants. Phytochemistry Reviews. 19(5): 1199-1209. |
[8, 11]
. Additionally, the growing interest in personalized medicine presents an opportunity for herbal remedies to be tailored to individual genetic profiles, improving the precision and efficacy of treatment (
Figure 2). The continued rise in consumer demand for natural products, coupled with a better understanding of the science behind herbal therapies, could lead to a stronger role for herbal medicine in integrative and complementary medicine
[10] | Atanasov, A. G., Zotchev, S. B., Dirsch, V. M., Supuran, C. T. 2021. Natural products in drug discovery: Advances and challenges. Nature Reviews Drug Discovery. 20(10): 756-773. |
[10]
.
3.5. Therapeutic Benefits and Concerns of Herbal Medicine
Figure 3. Validation prospective of traditional medicine (Source: 13).
This section provides an in-depth analysis of the findings from scientific studies on the validation and potential of herbal medicines. It emphasizes the promising therapeutic benefits, the challenges in clinical translation, and the need for robust research to facilitate the integration of herbal treatments into mainstream healthcare (
Figure 3). Below are some of the highlighted benefits and concerns with regard to the use of herbal medicine:
1) A large body of literature demonstrates that herbal medicines offer a wide array of therapeutic benefits, some of which are comparable to, or even exceed, the efficacy of conventional pharmacological treatments. For instance,
Ginkgo biloba is one of the most studied herbs in the treatment of neurodegenerative conditions like Alzheimer's disease. Clinical trials have shown that
Ginkgo extract improves cognitive function and reduces symptoms of dementia
[17] | Yuan, Y., Xu, S., Xu, W. 2016. Ginkgo biloba extract in the treatment of Alzheimer's disease. Cochrane Database of Systematic Reviews. 12: 4 pp. |
[17]
. The compound’s mechanisms of action include enhancing cerebral blood flow and providing antioxidant protection to neurons, contributing to its cognitive-enhancing effects.
2) Another widely used herb is
Curcuma longa (turmeric), which contains curcumin. Several studies highlight curcumin's anti-inflammatory, antioxidant, and anticancer properties. A comprehensive meta-analysis by Hewlings and Kalman
[15] | Hewlings, S. J. and Kalman, D. S. 2017. Curcumin: A review of its effects on human health. Foods. 6(10): 92. |
[15]
showed curcumin’s ability to manage conditions such as osteoarthritis, cardiovascular diseases, and cancer. Moreover, its ability to modulate multiple signaling pathways related to inflammation and cell survival underscores its therapeutic potential.
3)
St. John's Wort (
Hypericum perforatum), commonly used for its antidepressant properties, has also been subjected to numerous studies. A systematic review by Linde
et al.
[18] | Linde, K., Berner, M., Vickers, A. 2015. St John's wort for major depression. Cochrane Database of Systematic Reviews. 12: 3 pp. |
[18]
consolidated findings from multiple clinical trials, concluding that
St. John's Wort was significantly more effective than placebo and comparable to conventional antidepressants in treating mild to moderate depression. The plant’s active compounds, hypericin and hyperforin, modulate neurotransmitter systems such as serotonin, dopamine, and norepinephrine, which are critical in regulating mood.
3.6. Safety Profile and Toxicity Concerns
While the therapeutic benefits of herbal medicines are well-established, safety remains a crucial concern, particularly regarding adverse reactions and interactions with other drugs. The regulation of herbal products is often insufficient, leading to variability in product quality and potential contaminants. For example,
Ginkgo biloba has been linked to an increased risk of bleeding, particularly when combined with anticoagulants like warfarin
[23] | Teschke, R., Schwarzenboeck, A., Wiese, M. 2013. Drug interactions with herbal medicines. Journal of Clinical Pharmacy and Therapeutics. 38(5): 347-355. |
[23]
. Similarly,
St. John's Wort is known to interact with a wide range of medications, including antidepressants, antiepileptics, and contraceptives, potentially leading to reduced efficacy or dangerous side effects
[23] | Teschke, R., Schwarzenboeck, A., Wiese, M. 2013. Drug interactions with herbal medicines. Journal of Clinical Pharmacy and Therapeutics. 38(5): 347-355. |
[23]
. Safety concerns are also prevalent in certain herbal products that are contaminated with heavy metals, pesticides, or other pharmaceuticals due to improper cultivation or manufacturing practices. A study by Miller
et al.
[22] | Miller, S. C., Martello, J., Gawda, B. 2019. Challenges in the clinical testing of herbal medicines. Phytotherapy Research. 33(8): 2121-2132. |
[22]
found that several commercially available herbal products contained high levels of contaminants, which posed risks to consumers. Ensuring the purity and consistency of herbal medicines through rigorous quality control standards is therefore essential to minimize these risks.
3.7. Challenges in Clinical Validation
One of the most significant barriers to the widespread acceptance of herbal medicines is the difficulty in conducting rigorous clinical trials to validate their effectiveness. As Miller
et al.
[22] | Miller, S. C., Martello, J., Gawda, B. 2019. Challenges in the clinical testing of herbal medicines. Phytotherapy Research. 33(8): 2121-2132. |
[22]
suggested, the lack of standardization in the preparation of herbal products, including differences in plant origin, extraction methods, and dosages, makes it difficult to draw definitive conclusions about their efficacy. Additionally, many herbal treatments have not been subjected to large-scale randomized controlled trials (RCTs), which are considered the gold standard for clinical evidence. A key challenge lies in the complexity of herbal mixtures. Unlike synthetic drugs, which often have a single active ingredient, herbal remedies typically contain multiple bioactive compounds, each of which can contribute to the therapeutic effects. This complexity makes it challenging to identify the specific mechanisms through which these herbs work. Moreover, the synergistic or antagonistic effects of combining different plant components need to be investigated more thoroughly. Atanasov
et al.
[10] | Atanasov, A. G., Zotchev, S. B., Dirsch, V. M., Supuran, C. T. 2021. Natural products in drug discovery: Advances and challenges. Nature Reviews Drug Discovery. 20(10): 756-773. |
[10]
emphasize the importance of advanced techniques like pharmacogenomics and phytochemicals in unraveling the complexities of herbal medicine and understanding how specific compounds interact at the molecular level.
The long-standing use of traditional herbal medicines, while promising, often lacks the robust clinical trial data needed to satisfy regulatory authorities. As a result, some herbal products are marketed without adequate proof of safety and efficacy. For example, while
Echinacea has a long history of use as an immune booster, clinical trials have yielded mixed results, with some studies showing no significant effect in preventing colds
[19] | Schulten, L., Duda, M., O'Keefe, A. 2020. Echinacea for the prevention and treatment of upper respiratory tract infections: A systematic review and meta-analysis. Cochrane Database of Systematic Reviews. 2: 3 pp. |
[19]
, while others suggest modest benefits. These inconsistencies highlight the need for more high-quality trials to better understand the true clinical potential of such plants.
3.8. Innovations in Herbal Medicine Validation
Recent advances in biotechnology and nanotechnology have opened up new avenues for the scientific validation and improvement of herbal medicines. Nanotechnology, for instance, can enhance the bioavailability and controlled release of active herbal compounds, making them more effective in treating specific conditions. Süntar
[8] | Süntar, I. 2020. Nanotechnology and herbal medicine: The way forward. Current Topics in Medicinal Chemistry. 20(10): 905-918. |
[11] | Süntar, I. 2020. Importance of ethnopharmacological studies in drug discovery: Role of medicinal plants. Phytochemistry Reviews. 19(5): 1199-1209. |
[8, 11]
explained how nanoparticle-based formulations of herbal medicines can improve the solubility and absorption of poorly water-soluble compounds like curcumin. This innovation could significantly enhance the therapeutic potential of herbal treatments. Another promising approach is phytopharmacogenomics, which integrates the study of genetics with herbal pharmacology. By understanding how individual genetic variations affect the way a person responds to herbal treatments, researchers can develop more personalized and effective herbal therapies
[24] | Rottmann, M., Jacoby, D., Müller, M. 2020. Phytopharmacogenomics: A promising approach to precision herbal medicine. Phytomedicine. 70: 153227. |
[24]
. This field could potentially revolutionize the way we approach the use of herbs in medicine by tailoring treatments to individual genetic profiles, much like the growing field of personalized medicine for pharmaceuticals.
3.9. Regulatory Framework and Global Integration
The regulatory framework for herbal medicine varies widely between countries, which can complicate the global integration of these therapies into healthcare systems. In the European Union, for example, the European Medicines Agency (EMA) requires extensive clinical data and manufacturing standards for the approval of herbal medicinal products
[6] | Heinrich, M., Barnes, J., Gibbons, S., Williamson, E. M. 2020. Herbal medicine in the treatment of neurodegenerative diseases. Phytotherapy Research. 34(4): 728-748. |
[14] | Heinrich, M., Appendino, G., Efferth, T., Fürst, R., Izzo, A. A., Kayser, O., Viljoen, A. 2020. Best practice in research: Consensus statement on the investigation of herbal medicines. Journal of Ethnopharmacology. 246: 112230. |
[6, 14]
. Meanwhile, in the United States, herbal medicines are categorized as dietary supplements, which mean they are not subject to the same rigorous testing requirements as pharmaceutical drugs. This discrepancy in regulation poses challenges in ensuring that herbal products meet consistent quality standards across markets. The WHO's
Traditional Medicine Strategy 2014-2023 outlines a framework for integrating traditional herbal medicine into national health systems. The strategy emphasizes the importance of evidence-based research, regulatory policies, and quality assurance in ensuring the safe and effective use of herbal medicines in both developed and developing countries
[5] | World Health Organization (WHO) 2019. WHO global report on traditional and complementary medicine. Retrieved from www.who.int on February 04, 2025. |
[5]
.