Nature’s Materia Medica, Fourth Edition
1,500 Homeopathic and Herbal Remedies by Robin Murphy, ND
Discover the expanded fourth edition of Robin Murphy’s Nature’s Materia Medica inside RadarOpus.
This comprehensive reference brings together more than 1,500 homeopathic remedies, herbs, minerals, trees, flowers, gemstones, nosodes, toxins and superfoods. It combines traditional knowledge with modern clinical information, providing an accessible resource for daily practice, study, teaching and research.
A Modern Materia Medica for Everyday Practice
Nature’s Materia Medica is the fourth edition of Robin Murphy’s original Homeopathic Remedy Guide, first published in 1995.
The fourth edition represents a major revision and expansion of the previous work. It includes more than 100 new remedies, thousands of additions and updates, expanded clinical information, new cross-references and more modern terminology.
The result is a practical, easy-to-navigate reference designed for both experienced practitioners and students of homeopathy and herbal medicine.
More Than 1,500 Remedies in One Reference
The fourth edition covers a remarkably wide range of homeopathic and natural medicines, including:
- Classical and modern homeopathic remedies
- Herbal remedies and tinctures
- Plants, roots, leaves, flowers and trees
- Minerals and gemstones
- Nosodes, toxins and viruses
- Mushrooms, oils and teas
- Fruits, berries, vegetables and seaweeds
- Superfoods and traditional tonics
- New and historical provings
Among the new additions is the Coronavirus Nosode, together with more than 100 other homeopathic and herbal remedies.

What Is New in the Fourth Edition?
The fourth edition has been extensively revised to provide a clearer, more comprehensive and clinically useful resource.
More than 100 new remedies
New homeopathic remedies, herbal medicines, superfoods, nosodes, minerals, toxins and provings have been added.
Thousands of updates
Existing remedy monographs have been expanded with new clinical information, terminology, keynotes, cross-references and research.
New clinical commentaries
The edition includes additional observations and commentaries drawn from Robin Murphy’s lectures and clinical notes.
Improved editing and presentation
Spelling, grammar, formatting and paragraph structure have been reviewed and corrected throughout the work.
Updated remedy abbreviations
Remedy abbreviations have been revised to correspond with those used in Robin Murphy’s MetaRepertory, Fourth Edition.
Expanded supporting resources
The fourth edition contains an updated:
- Clinical repertory
- Homeopathic and herbal glossary
- Remedy index
- Table of contents
- Remedy reference section
- List of Latin and common names
- Botanical and chemical information

Explore Every Remedy from Multiple Perspectives
Each remedy monograph follows a consistent structure, making it easier to locate and compare the information needed during a case.
Pharmacy
The remedy’s Latin and common names, abbreviation, natural order, source, geographical origin and method of preparation.
Clinical
An alphabetical overview of the conditions and disorders historically associated with the remedy.
Herbal
Traditional uses, folklore, botanical information, herbal signatures, poisonings, case histories and historical experience.
Homeopathic
Therapeutic uses, affinities, keynotes, general symptoms, particular symptoms, pathological indications and information from provings.
Mind
Mental and emotional symptoms, including behaviour, memory, concentration, fears, anxieties, moods, grief, anger, beliefs, impulses and perceptions.
Body
A clearly arranged anatomical schema covering areas such as the abdomen, back, brain, chest, ears, eyes, heart, kidneys, limbs, liver, lungs, skin, sleep and stomach.
Commentary
Historical and modern observations, clinical experiences, remedy reviews, folklore, provings and case histories.
Relationships
Antidotes, complementary remedies, remedies that follow well and comparisons with remedies having similar symptoms or therapeutic uses.
References
The principal homeopathic and herbal sources used for each remedy monograph.
Built Upon Classical and Modern Sources
The remedy monographs draw upon the work of many influential homeopathic and herbal authors, including:
Allen, Anshutz, Bach, Boericke, Burnett, Clarke, Cooper, Hahnemann, Hale, Hering, Julian, Murphy, Nash, Paracelsus, Phatak and Rademacher.
These historical sources are combined with modern terminology, clinical observations, new provings and updated remedy information.
Designed to Complement the MetaRepertory
Nature’s Materia Medica, Fourth Edition was redesigned to work alongside Robin Murphy’s MetaRepertory, Fourth Edition.
The two works use similar terminology, remedy abbreviations and alphabetical chapter structures. This allows practitioners to move naturally from the patient’s symptoms, to repertorisation, and then to a detailed study of the leading remedies.
The alphabetical schema includes familiar chapters such as:
Abdomen, Back, Chest, Ears, Eyes, Face, Female, Food, Head, Heart, Kidneys, Limbs, Lungs, Male, Mind, Mouth, Nose, Rectum, Skin, Sleep, Stomach, Throat and Vertigo.

Why Use Nature’s Materia Medica in RadarOpus?
Inside RadarOpus, this extensive reference becomes part of your digital clinical workflow.
You can:
- Search for words, symptoms, themes and remedies
- Access detailed remedy monographs while repertorising
- Compare possible remedies more efficiently
- Search across materia medica, repertories, provings and clinical references
- Investigate remedy relationships and differential diagnoses
- Copy relevant information for study, teaching or research
- Move smoothly between the repertory and materia medica
- Include materia medica findings in a wider case analysis
RadarOpus also allows users to search across multiple homeopathic references and compare remedies within selected search areas. Learn more about the RadarOpus library and search tools.

Who Is It For?
Nature’s Materia Medica, Fourth Edition is suitable for:
- Professional homeopaths
- Homeopathic students
- Teachers and lecturers
- Researchers and writers
- Practitioners interested in herbal medicine
- Anyone seeking a broad, clinically organised natural medicine reference
Its clear structure makes it useful during consultations, while its historical references, provings and commentaries provide material for deeper study.
Important Edition Information
Several editions and reprints of this title are available.
The version featured here is the expanded USA fourth edition, published by the Lotus Health Institute. It contains more than 100 additional remedies, including the Coronavirus Nosode, as well as thousands of revisions and updates.
When purchasing a printed copy elsewhere, check the edition and sample contents carefully. Older or reduced editions may contain considerably less material.
Explore the Fourth Edition
Discover the historical depth, clinical experience and extensive remedy knowledge of Robin Murphy’s Nature’s Materia Medica, Fourth Edition, now available within the powerful search environment of RadarOpus.
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