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444 Herbal Pharmacopeia
Similarly, the choice for the collection of plants is also important as they could affect both the
quality and the efcacy of the substances. The nal application of the herbal medicinal products is
dependent on the cultivation method employed. For instance, wild collection methods are vulnerable
to certain risks and confusion like similar plants, lack of control, environmental damage, a and lack
of qualied personnel. Also, a variation in the composition of the products could be a challenge
exhibited by these plants due to non- uniformity in natural growing conditions. However, in situations in which herbs cannot meet the cultivation practices and the agronomic conditions could not
be achieved, manufacturers may opt for wild cultivation (EMEA/HMPC/246816/2005).
21.3.3.3.3 Specications: Criteria for Testing Herbal Substances and Their Procedures
forPreparation
A list of tests, analytical and biological procedures references, and dened acceptance criteria which
could involve numbers, limits, or ranges are termed specications. This denes the criteria that
should be fullled by any herbal preparation or herbal medicinal product for its intended use. When
a product has fullled the criteria as dened in the listed procedure, it will be considered to have
been manufactured in terms of “Conformance to specication”. In addition, specications could be
described as the quality standards proposed by the manufacturers that are legally binding and are
approved by regulatory authorities.
Here, in the case of HMPs, specications refer to herbal substances, or herbal medicinal product.
This classication is quite different from characterization, as in a specication only the quality of the
herbal substances is dened. There should be a focus on the characteristics that ensure the safety and
efcacy of the herbal substances. Contrary to the medicinal products, which contain chemically dened
active substances, herbal medicinal products that contain herbal preparations as active substances
should also dene the specication, even if the herbal substance serves solely as an active starting
ingredient for the herbal preparation (EMA/HMPC/CHMP/CVMP/162241/2005) (Figure 21.1).
21.3.4 non- CliniCal GUidelineS
21.3.4.1 Genotoxicity Assessment of Herbal Preparations
In these guidelines, practical approaches to test the expected genotoxicity of the herbal substances
is described and the interpretation of the results is discussed.
HMPs are presented with several characteristics that can differentiate them from other MPs.
Examples of important differences may include:
• HMPs are prepared by substances that could form part of the regular diet, and/or present in
the environment, which means their contribution to overall health needs to be considered.
• They can also contain variable amounts of large numbers of constituents which are present
in sometimes highly variable amounts.
• Similarly, their composition can also vary due to harvesting method, geographical location,
and the time of harvesting etc.
The overall complete composition of the preparation is difcult to reveal. It is always stated that
many unknown constituents are present in the preparation, as a result of which there may be hidden dangers. Besides, in many other aspects, HMPs are quite like medicinal products that contain
synthetic active substances:
• Their legal position is determined by the same basic legislation [1].
• A portion of the population has been using many HMPs for a long time.
Although herbal natural substances are shown to have genotoxic aspects, the question arises: could
they be exposed to humans via food, water and environmental transmission? What would be the
Regulatory Considerations for Herbal Products 445
FIGURE 21.1 US and EU Regulatory aspects of herbal products.
burden to an individual of using HMPs on top of natural exposure? Is there a range that denes
the acceptance of the level of exposure? Additionally, are there any signicant standards to determine the acceptable range of exposures? All these questions have been addressed in the reference
(EMEA/HMPC/107079/2007).
21.3.5 aSia
21.3.5.1 Traditional Chinese Medicines
One group of healthcare practices which may be integrated into the central healthcare system,
up to an extent dened in various theories, beliefs and experiences, is referred to as Traditional
Medicine (TM) and Complementary Medicine (CM) [19]. Traditional Chinese Medicine (TCM) has
developed over thousands of years. TCM practitioners use a variety of physical and psychological
methods, along with herbal products, to treat health issues. The historic status of cultural practices
explains the lack of TCM regulation, which can be simply stated as the people’s lives are unnecessary, even intrusive ( http:// www. chinadaily. com. cn/). The rst recorded evidence of the widespread
use of TCM on the mainland of China is provided by The Yellow Emperor’s Classic. This old text
was compiled before 85 BC for which details are mentioned in the traditional method of diagnosis
and treatments. While China’s rich medical history is further testied by written examples of old
diagnosis and treatments [20].
From this perspective, having a proper system to regulate and ensure the quality, safety, and
effectiveness of traditional medicines is crucial not only for public health but also for economic
446 Herbal Pharmacopeia
growth. The evaluation standards and the regulatory approaches are yet to be developed for TM/CM
being used over a very long period of time [21].
21.3.5.2 Regulatory Approaches for TM/CM
There is a great difference in terms of the denitions, the scope, and the overall regulatory authorities and their approaches, which are associated with TM/CM products featured over the long history
of use in selected regions or countries considering the risk- based approaches.
Four registration categories, innovative Chinese medicines, generic Chinese medicines, modied
new Chinese medicines, and old Chinese medicines, are dened in China regarding TM/CM (22). A
draft was issued in 2017, the Regulation of the Simplied Registration of the Simplied Registration
for CCMF by NMPA, which was known as the China Food and Drug Administration at that time.
Following the enactment of the provisions of drug registration in 1985, the CCMF listed all those
medicines that were present in ancient Chinese medical books before 1911. All of these were strictly
examined by a stringent examination process, approved standards, and regulation models. The
approval and simplied registration process was also proposed accordingly. Compared with the
modern biochemical drugs, the fact that CCMF has evident effects over centuries and their clinical
applications are not applicable as of today’s era of drugs.
21.3.6 indian ayUrvediC reGUlationS
21.3.6.1 Food Safety and Standards Authority of India
Regulations regarding the safety and quality of food products have been formulated by the Ministry
of Ayush, along with the Food Safety and Standards Authority of India under the Ministry of
Health and Family Welfare (MoHFW). The motto of this initiative was to promote products made
in India as well as to ensure the quality manufacturing of herbal products. The ministry was also
condent enough that such initiatives will further strengthen India as a global custodian of the
Ayush system.
This regulation made strict protocols that any Ayurveda Aahara shall be licensed under Food
Safety and Standards Regulation of 2022. Following this, they will be ready for sale in the market. For
this purpose, a special logo was designed to help the public identify examples of approved Ayurveda
Aahara.
The ministry also focused on public messaging that food safety and quality is not solely the
responsibility of the government; it is also a shared responsibility of each and every individual in
India. The slogan was further strengthened during the COVID- 19 pandemic, during which the focus
on food, health, and nutrition was greater than in previous times.
According to the regulations, only food prepared in accordance with the instructions and recipes
written in the authoritative book of Ayurveda will be considered to be genuine Ayurveda Aahara. In
addition, foods that promote health, food specied for consumption, and food specic for physiological needs are referred to as Pathya in Ayurvedic and are covered under this regulation.
Different claims regarding Ayurveda Aahara, such as claims to reduce diseases, health claims and
different categories of these Aahara shall full the requirements specied in the regulations. It is to
be noted that Ayurvedic medicines, cosmetics, narcotics, or ayurvedic drugs will not be included
under this regulation. Furthermore, these are also prohibited for children under two years of age [7].
21.3.7 World HealtH orGanization
In 1948, a specialized agency of the United Nations (UN) for improved public health conditions
was established. This is better known as the World Health Organization (WHO). The WHO was
assigned a broad mandate under its constitution to regulate and maintain the highest possible level of
public health, although initially it was given the tasks of drug standardization, epidemic control, and
Regulatory Considerations for Herbal Products 447
quarantine measures. According to the denition by the WHO, health is dened as a state of physical and social well- being, or complete physical and mental well- being without disease or inrmity.
Annually, April 7 is celebrated as the anniversary of the WHO’s establishment and is named World
Health Day.
The implementation of strategies and routine operations are operated by central headquarters or
through regional WHO ofces, as well as in its individual country ofces around the world.
21.3.7.1 WHO Guidelines on the Safety Monitoring of Herbal Medicines
Safety is the critical component of quality control and is the basic principle in the provisions of herbal
products for healthcare. Within the pharmacovigilance system, these guidelines provide basic technical guidance about the safety of herbal products and their regulations. There are various differences in
the cultural and regulatory systems in pharmacovigilance, yet they are equally important [23].
The guidelines are developed with the view that the safety of medicines should be broadened and
enhanced to allow the proper monitoring of herbal medicines (Table 21.2).
Four complementary actions are to be taken for the use of herbal medicines:
• Identication of the nature of the adverse events associated with the product.
• Risk management.
• Measurements to deal with the risks associated.
• Communication of benets and risks of herbal medicines.
TABLE 21.2
Major Countries with Their Respective Regulatory Bodies and Their Responsibilities
Country Regulatory Body Roles and Responsibilities
United
States
European
Union
China CFDA (China Food and Drug
Japan PMDA (Pharmaceuticals and
India AYUSH (Ministry of
Australia TGA (Therapeutic Goods
Canada Health Canada - Reviews and approves herbal medicines based on safety and efcacy
FDA (Food and Drug
Administration)
EMA (European Medicines
Agency)
Administration)
Medical Devices Agency)
Ayurveda, Yoga &
Naturopathy, Unani,
Siddha, and Homoeopathy)
Administration)
- Evaluates and approves new herbal medicines for safety and efcacy.
- Monitors post- marketing adverse events and compliance.
- Sets standards for manufacturing practices (GMP).
- Reviews and authorizes herbal medicines based on quality, safety, and
efcacy.
- Coordinates pharmacovigilance activities across member states.
- Provides scientic guidelines and assessments.
- Approves herbal medicines based on traditional and modern safety and
efcacy data.
- Regulates manufacturing practices and quality control.
- Conducts post- marketing surveillance and adverse event monitoring.
- Reviews and approves herbal medicines, integrating traditional usage
with modern scientic data.
- Conducts safety and efcacy evaluations.
- Oversees post- marketing surveillance and regulatory compliance.
- Approves and monitors herbal medicines based on traditional texts and
modern research.
- Ensures compliance with manufacturing standards and safety
regulations.
- Conducts post- marketing surveillance and adverse event reporting.
- Evaluates and registers herbal medicines for safety, quality, and efcacy.
- Regulates manufacturing practices and standards.
- Monitors adverse events and enforces compliance.
data.
- Sets guidelines for manufacturing practices (GMP).
- Monitors post- marketing safety and adverse events.
448 Herbal Pharmacopeia
21.4 CLASSIFICATION OF HERBAL PRODUCTS
In general, herbal products are classied into three major categories:
1. Dietary Supplements
2. Traditional Medicines
3. Over the Counter (OTC) Herbal Products
21.4.1 dietary SUpplementS
The dietary ingredient is dened as a herb or botanical, mineral, dietary substance, vitamins, and/or
amino acids used by a man to supplement the daily intake by the Federal Food, Drug and Cosmetics
Act. These supplements could also be metabolites, constituents, or the combination of the previous
substances, but not drugs to diagnose, prevent, or treat any disease. This means that these supplements should not be used for treating pains or claiming to treat any diseased condition. In addition,
dietary supplements are marketed as soft gets, gelcaps, tablets, capsules, powders, and/or in liquid
forms.
21.4.2 Herbal SUpplementS
Different jurisdictions interpret herbal medicine in a variety of ways. The WHO considers herbal
medicines to be those that include herbal materials, herbal preparations, or herbs to bring harmonization. The herbal products could be comprised of ingredients that are either obtained from a single
plant or multiple plants as active ingredients. However, some herbal products contain active ingredients from animals, rather than plants and plant sources. In USA, medicines classied as botanical
would be termed herbal, out of which some are regarded as dietary supplements.
21.4.3 FUnCtional Food
There is a concept that there are health benets of some foods, and functional food is used as an
alternative term for nutraceutical food. Food substances that could be extracted from normal food,
such as peanuts, grapes, and contain resveratrol with antioxidant properties in processed or in powder form, are termed functional foods. Health Canada denes such substances as nutraceutical and
as a product originated from food, while they are not recognized categories under EU legislation.
21.4.4 traditional mediCine
In jurisdiction, these are the practices that have a wide history of practice. In addition to medicine,
the practice might be combination of knowledge and beliefs. It could be employed as a diagnosis,
and in the treatment of physical and mental health [23].
21.5 APPROVAL PROCESS
21.5.1 pre- market approval
The process for the scientic and regulatory review for the evaluation of safety and effectiveness of
Class III medical devices by the FDA is known as “premarket approval” (PMA). Class III devices
are devices that are substantial in improving human health, sustaining human life irrespective of the
risk of illness or injury. The FDA has determined that general and special controls are insufcient to
ensure the safety and effectiveness of Class III devices, which carry a higher level of risk. Therefore,
in order to obtain marketing approval, these devices require a “premarket approval” under section
515 of the FD&C Act.
Regulatory Considerations for Herbal Products 449
The most stringent type of marketing device application by the FDA is a PMA. Prior to marketing
the device, the applicant must receive FDA approval for its PMA application. The FDA approves a
device by making sure it has enough valid scientic evidence to demonstrate that it is safe and effective for its intended use. The person who reserves the right and has authorized access to the data and
other necessary information to be submitted to FDA is known as the PMA applicant. This could be
any legal entity, organization, institution, or individual while the applicant is mostly the manufacturer or the developer of the device.
21.5.2 poSt- market SUrveillanCe
In post- market surveillance, the developer or manufacturer of a certain device explores the market’s
opinion about the product so that they may take necessary actions for further improvements. This
is crucial because it ensures that the device is working smoothly and helps in identifying common
problems that occur. The evaluation of post- market surveillance can also help improve the medical
device.
It is seen that in the past several developments have had a great impact on the post- market surveillance system. In 2017, the European Union published regulations on medical devices, and in the
same year the WHO issued a global regulatory framework for medical devices and in vitro diagnostics (IVDs) [8]. Among these, EU regulations have set relatively strong and detailed requirements
for post- market surveillance, including how post- market data is used, such as updating risk management les and clinical evaluations. Similarly, the United States FDA has emphasized on using data
from past experiences gained using medical devices [9]. Real- world evidence for post- market surveillance is being considered by a number of regulators and other regulatory processes.
21.5.3 CliniCal trialS
Herbal products have become a major and important part of the public healthcare around the world
[24]. Their widespread use has been highlighted in various surveys on traditional and alternative
medicines. However, clinical trials of such products must be encouraged in order to further widen
their acceptance. It is advised that single and continued batches of formulations should be used to
prove the efcacy of the clinical trials. This has become an integral part of its large- scale endorsement on national and international levels, although the herbal practitioners are not required to perform clinical trials [10].
21.6 DIVERSE REGULATORY STANDARDS
Difculties in harmonizing herbal pharmacopoeia regulation has been greatly inuenced by the
diverse regulatory standards that are in place across various nations and regions [25]. This variation results from the different denitions and categorizations of herbal items, which, depending on
the jurisdiction, might be classied as food, dietary supplements, or prescription medications [26].
Since various markets may have different regulations governing the same herbal product, these disparities may cause misunderstanding regarding safety and quality control standards (Figure 21.2).
21.6.1 example oF diverGenCe
There is a great deal of divergence in the ways of harmonizing the standards and approval process
of herbal products to achieve global access among different agencies. For instance, the pre- market
approval processes for herbal products are not essential according to the US FDA while the EMA
strictly emphasizes the quality control and quality assurance of the herbal products before launching
it into the market [27]. Rules in place for the herbal products by the EMA are relatively strict when
compared with other regulation agencies.
450 Herbal Pharmacopeia
FIGURE 21.2 Regulatory approval process for herbal medicines.
There are huge differences in different regions regarding the consumption of herbal products.
The lack of reliability and accessibility of the same herbal drug globally is a major obstacle in the
approval process of herbal pharmaceuticals. Because of such differences in the laws of herbal pharmaceuticals, it is difcult to commercialize them in the market. To overcome these issues, the efforts
of the international forum are required. There must be coherence in terms of the standards and quality control across the globe [10]. Although the WHO has developed a standardized set of regulations
for quality control and quality assurance, the implementation of the guidelines still vary among the
state members [27].
21.7 EFFORTS FOR INTERNATIONAL COLLABORATION
International collaboration in the area of herbal products is necessary because there is a complete
difference between the consideration of herbal products when they are regarded as dietary supplements and when they are treated as pharmaceutical products. Due to the increase in globalization, there room for the introduction of one single herbal products classication across the world
[28]. The role of the WHO in international collaboration is reected through the development of
an International Herbal Pharmacopeia (IHP). The main aim of the IHP is to standardize the quality
control and safety measure of the herbal products across every individual country’s pharmacopeia.
Another prominent initiative in this regard is the formation of a Pharmacopeial Discussion Group
(PDG), which will contain members from all the countries and states around the globe [29]. This
group arranges the International Meeting of World Pharmacopeias for the harmonization of the
regulations of herbal products.
21.8 IMPACT OF SCIENTIFIC ADVANCEMENTS
Scientic advancements are playing a crucial role in identifying and developing new herbal pharmaceutical products. Different technologies are used to check the chemical composition and potential
effects of those components in order to identify their medicinal purposes. In this era of scientic
advance, it is convenient to analyze and separate the active compounds from the herbal extracts.
The analytical techniques of chromatography, characterization and spectroscopy, such as highperformance liquid chromatography (HPLC), X- ray diffraction (XRD), mass spectroscopy (MS),
and nuclear magnetic resonance (NMR), are used for the detection of active and toxic compounds
in herbal products [30]. The techniques also standardize the quality control measures and dosage
ranges of the active compounds of these herbal products.
21.8.1 Combination oF modern reSearCH and traditional knoWledGe
Herbal products have been used for medicinal purposes from the earliest times of human existence.
Our forefathers used these products to cure the illnesses, and this traditional knowledge is enriched
Regulatory Considerations for Herbal Products 451
with invaluable insights for human health and the natural environment [31]. Through the integration of scientic technologies for experimenting on this traditional knowledge, researchers are able
to overcome the gap between the effective usage of the herbal products and the modern research
related to these medicines. The tradition of following customary rituals without any scientic evidence for the herbal products is a hindrance affecting herbal pharmaceutical development. This gap
can only be overcome by integrating the scientic techniques in this traditional knowledge to evaluate the medicinal effect of herbal products.
21.8.2 reCoGnizinG tHe valUe oF traditional knoWledGe
It is impossible to develop herbal products and their regulations without acknowledging traditional
knowledge. The traditional knowledge transferred from generation to generation through the oral
mode has played a signicant role in the various elds of sciences such as ecology, medicines,
resource management, and agriculture. In many instances, the early traditional methods are the basis
for more scientic technologies [32]. Over the past few years, scientists have been emphasizing the
fusion of traditional knowledge with scientic techniques. The knowledge gained from traditional
practices is the basis for scientic development, and these two approaches must both be taken into
consideration and valued.
21.9 APPROACHES TO INTEGRATION
Since both the scientic and traditional approaches each have their own signicance, there are
four different research approaches which can be used to combine these two major elds of information [33]:
• Collaborative Research
• Participatory Research
• Interdisciplinary Research
• Comparative Research
21.9.1 Collaborative reSearCH
In this type of research, scientists collaborate with the communities and gain rsthand traditional
knowledge from them. In turn, researchers provide maximum benet to the subject of studies carried
out within these communities.
21.9.2 partiCipatory reSearCH
In this type of research, the indigenous communities voluntarily participate with the research groups
and help them to collect and analyze the more relevant and meaningful information.
21.9.3 interdiSCiplinary reSearCH
In this approach, scientists from both the traditional and modern elds work together and analyze
the evidence basis for the development of the herbal pharmaceutical.
21.9.4 Comparative reSearCH
In such research, the scientists compare both the traditional and modern approaches and rene the
available knowledge. In this way, they formulate new hypotheses and prove them through different
experiments.
452 Herbal Pharmacopeia
21.9.4.1 Benets of Integration
The benets of integrating both types of knowledge not only enhance the improvement in the development of herbal medicines, but also mitigate the risks associated with the side effects and contradictions of the herbal products. The synergy of both tradition and modern knowledge provides an
improved and more effective formulation of the pharmaceutical products [34]. Modern technologies
such as genetic engineering, characterization, and spectroscopy help in the conservation of medicinal compounds. The involvement of indigenous people in the research opens room for the development and deep understanding of the concept. Overall, the integration of traditional knowledge and
the modern scientic approach expands the market for herbal products by advances in social, health,
and environmental sustainability and innovation [35].
21.10 CHALLENGES & CONSIDERATIONS
Along with the benets of this integration, there is an equal number of challenges and consideration
for this collaboration. The foremost issue is the intellectual property right among the indigenous
people and the scientists. There must be rules and regulations to protect the native people and scientists copyright claims and both parties must prioritize the protection of each other’s rights for fair
and equitable benets. Cultural sensitivity is the other challenge in this integration [36]. Scientic
researchers must consider the cultural context of the traditional knowledge and follow, as well as
respect, the protocols of indigenous communities. Understanding cultural sensitivity can overcome
challenges such as miscommunication, a lack of trust, and hindrance in collaboration. Investigating
traditional knowledge within a scientic setting is itself a challenge. Not all the traditional techniques and easily replicated and optimized in a scientic setting.
In order to successfully integrate both of these approaches, it is necessary to communicate these
issues within an international forum and set the regulations for overcoming the challenges associated with integration [37]. An ethical perspective for the research can also be achieved by considering and communicating these challenges.
21.11 ADVANCED TECHNOLOGIES IN QUALITY CONTROL
With the advancement of the technologies the quality, consistency, efcacy, and standard of the
herbal pharmacopoeia landscape is improving. In this era, given the increase in global demand for
natural rather than synthetic products, herbal products are in the limelight. It is now possible for the
quality of these products to be secured through the enforcement of the strict quality assurance [38].
Cutting- edge technology can improve the prociency of these products. These technologies include
laboratory techniques and data resourcing through databases and the internet.
21.11.1 analytiCal teCHniqUeS
Analytical techniques include all of the advancements of laboratory experiments so as to ensure the
quality and efcacy of herbal products. These technologies include chromatography, characterization, and spectroscopy such as HPLC, XRD, MS, NMR. All these analytical techniques enable the
identication and quantication of active compounds in herbal products [39, 40]. For example,
XRD identies the chemical compounds while HPLC segregates them from one another. Finally, the
techniques of spectroscopy identify the molecular structures of these compounds.
21.11.2 Good manUFaCtUrinG praCtiCeS (Gmp)
The quality of the herbal products can be affected signicantly by the manufacturing processes
and practices. Good Manufacturing Practices (GMP) include the stepwise quality assurance of the
herbal products. Compliance with the guidelines and regulations of good manufacturing practices
Regulatory Considerations for Herbal Products 453
leads to the standard and quality products [41]. Each and every step, from obtaining raw material
to the formation and packaging of the product, is inspected and validated during GMP practice. By
complying with the requirements of GMP, the safety, quality, and effectiveness of products can be
improved while there is a minimization of the danger of contamination and unpredictability.
21.11.3 bioloGiCal aSSayS
Biological assays are the essential quality control parameter for advances in quality control. The
efcacy and potency of the herbal product is analyzed through performing clinically relevant bioassays and animal studies. In botanical and herbal products, it is mandatory to check the cytotoxicity
and to study the synergistic effect in order to achieve the desired therapeutical effect in clinical trials
[42]. Cell culture is one of the main advances in biological assay for the quality control and quality
assurance of herbal products.
21.11.4 Standardization oF extraCtion metHodS
In herbal pharmaceuticals, herbal extracts are used to obtain the active medicinal compounds. In
order to gain pure and effective active compounds, it is essential to standardize extraction techniques.
With advances in scientic knowledge, techniques such as supercritical uid extraction (SFP) and
ultrasound assisted extraction (UAE) are used to optimize the extractions of the compounds [43].
The techniques not only increase the yield of the active compound but also minimize the degradation
of the sensitive phytochemicals.
21.11.5 data manaGement & traCeability
With the advancement of technology, it is now possible to access and manage the large amount of
data generated and to accurately assess each and every step of the manufacturing process [44]. The
automation of machines allows the monitoring and recording of each stage, from the raw material
acquisition up to the supply of product in the market. The degree of traceability ensures the degree
of quality of the herbal product.
21.12 CHALLENGES & FUTURE DIRECTIONS
In spite of advances in technology, there are still many challenges before we achieve uniform quality
standards. The chief issue in attaining these standards is the heterogenous nature of herbal products,
and the fact that there is, at present, no comprehensive global framework for their standardization
[45]. To overcome this issue, there is the need to establish greater collaboration among scientists,
industrial stockholders, and regulatory bodies.
21.13 PERSONALIZED HERBAL MEDICINE
Personalized herbal therapy is the practice of customizing herbal remedies for each patient according to their specic genetic, environmental, and lifestyle characteristics [46, 47]. This approach
recognizes that individuals may respond differently to herbal products, necessitating a more customized approach to treatment. The following steps are required in prototyping the personalized herbal
medicines [48].
21.14 REGULATORY IMPLICATIONS
The development of guidelines for the formulation of personalized medicine is the key requirement in regulatory implications. These standards must ensure the safety and quality benchmark for