The Boger–Boenninghausen repertory remains one of the most practical repertories for everyday homeopathic work, particularly where the case presents with clear physical symptoms, strong modalities, characteristic sensations or striking concomitants. It is especially useful in acute cases, physical cases and situations where the mental-emotional picture is not yet fully developed, but the particulars are rich and expressive.
Its value lies not only in the repertory itself, but in the method of thinking behind it. Boenninghausen teaches us to take the fragments of a case and organise them into a meaningful totality. A patient may say, “I have a headache,” but this is not yet enough for homeopathic analysis. We still need to know where the headache is, what it feels like, what makes it better or worse, what accompanies it, when it occurs and what may have triggered it.
This movement from a general complaint to an individualised symptom is at the heart of Boger–Boenninghausen casework.
From Complaint to Complete Symptom
The complete symptom is central to the Boenninghausen method. A symptom becomes useful when it can be understood through its components: location, sensation, modality and concomitant. To these, we may also add aetiology, timing and the patient’s own descriptive language.
For example, “headache” is too general. A more useful symptom would be: headache in the right temple, throbbing and bursting, worse from motion, better from firm pressure, with nausea, beginning after exposure to cold wind.
This gives the practitioner something to work with. The complaint has moved away from the disease name and towards the patient’s individual expression. The repertory can then be used to explore remedies that run through this particular pattern, rather than remedies merely associated with “headache”.
This is where RadarOpus can support the practitioner very effectively. The software allows the user to search, compare, combine and study rubrics, but the quality of the analysis still depends on the quality of the case-taking. The clearer the symptom structure, the more meaningful the repertorisation becomes. 
CLAMS: A Practical Structure for Case Analysis
CLAMS is a useful way of remembering the main elements of a particular symptom:
- Concomitants
- Location
- Aetiology
- Modality
- Sensation
A concomitant is an accompanying symptom that appears before, during or after the chief complaint, without being simply explained by the pathology itself. It may be highly individualising because it shows how the whole organism is responding.
Location tells us where the complaint is situated: the organ, tissue, region, side or system affected. Location is useful, but rarely sufficient on its own. It becomes more valuable when joined with sensation, modality and concomitant.
Aetiology asks what triggered the complaint. This may be cold wind, damp, injury, grief, fright, anger, overwork, suppression or another clear event. The exciting cause matters because it shows where the patient’s susceptibility was activated.
Modalities are central to this method. They tell us what modifies the complaint: heat, cold, motion, rest, pressure, open air, time, weather, food, sleep, posture or emotional conditions. A strong modality may be more individualising than the diagnosis itself.
Sensation describes the quality of the experience: burning, stitching, cramping, tearing, throbbing, bursting, pressing, constricting, sore, bruised, heavy, empty, numb or shooting. Sensation gives texture to the symptom and helps translate vague suffering into repertory-usable material.
CLAMS should not be used mechanically. It is a structure for observation, not a rigid form. The practitioner still needs to judge which symptoms are clear, reliable, repeated, peculiar and characteristic.
The Seven Boenninghausen Questions
Boenninghausen’s wider case-taking structure can be remembered through seven questions: Who, What, Where, What accompanies it, Why, How and When.
These questions help the practitioner avoid prescribing merely on pathology. They bring attention back to the patient, the disease process, the location, the concomitants, the cause, the modalities and the timing. In practice, they help us gather the case in a way that is orderly without becoming artificial.
This is particularly useful for students and practitioners who are learning to move from patient language into repertory language. The patient’s words should be preserved as far as possible, but they also need to be translated carefully into rubrics that reflect the actual meaning of the symptom.
RadarOpus is useful here because it allows the practitioner to explore repertory language, browse related rubrics and compare entries across sources. This is important because repertory work is not only searching. It is also reading, comparing and understanding the structure of the repertory.
Repertorisation Is a Bridge into Materia Medica
Repertorisation is not the prescription. It is a bridge into materia medica.
The repertory helps create a field of remedy possibilities. It may confirm remedies already under consideration or bring forward remedies the practitioner might otherwise have missed. However, the remedy at the top of a repertorisation chart is not automatically the simillimum.
A good analysis asks more than, “Which remedy covers the most rubrics?” It asks whether the remedy corresponds to the characteristic pattern of the case. Does it match the modality, sensation, concomitant, causation, pace, intensity and general state? Does the remedy picture make sense when studied in materia medica?
This is where differential analysis becomes essential. Remedies may share many symptoms yet differ fundamentally in their structure and expression. One may be more restless, another more collapsed, another more irritable, another more changeable, another more congestive, another more sensitive. The work of the practitioner is to understand these differences.
The Genius of the Remedy
Boger’s contribution deepens the Boenninghausen method by drawing attention to the genius of the remedy. This means the characteristic pattern that runs through the remedy: its affinities, modalities, sensations, causations, pathological direction and peculiar expressions.
The practitioner is not merely counting symptoms. They are asking whether the living pattern of the remedy corresponds to the living pattern of the case. This prevents repertorisation from becoming mechanical and keeps materia medica at the centre of prescribing.
In RadarOpus, this movement between repertory and materia medica is particularly valuable. The repertory can help narrow the field, but materia medica gives depth, coherence and confirmation.
Where the Method Is Most Useful
The Boger–Boenninghausen method is particularly useful in acute cases, where the present state must be understood clearly and economically. Acute cases often provide strong causation, vivid sensations, clear modalities and useful concomitants.
It is also valuable in fever cases, where chill, heat, sweat, thirst, coverings, time, restlessness, prostration and concomitants may be more useful than abstract mental symptoms. In any real fever case, especially with high temperature, confusion, dehydration, severe weakness, breathing difficulty or other red flags, appropriate medical assessment is essential.
The method also excels where modalities are strong, such as aggravation from cold wind, amelioration from warmth, aggravation from motion, amelioration from pressure, or a marked time modality.
Final Thoughts
The Boger–Boenninghausen repertory remains valuable because it teaches the practitioner how to organise clinical observation. It helps us complete the symptom through location, sensation, modality, concomitant, aetiology, timing and description.
Used well, it prevents prescribing on diagnosis alone and keeps attention on what is characteristic in the patient’s expression. It also encourages economical repertorisation, careful rubric selection and proper materia medica confirmation.
The repertory narrows the field. Materia medica deepens understanding. Differential analysis clarifies the remedy. Clinical judgement completes the work.
This is the continuing clinical value of the Boger–Boenninghausen method, and it is precisely this kind of structured, thoughtful casework that RadarOpus is designed to support.