In homoeopathy, both Kent’s Repertory and Synthesis Repertory are foundational tools used to cross-reference patient symptoms with potential remedies. However, they differ significantly in their scope, origin, and modern clinical application. Key Differences Origins and Historical Basis: Kent's RepeRead more
In homoeopathy, both Kent’s Repertory and Synthesis Repertory are foundational tools used to cross-reference patient symptoms with potential remedies. However, they differ significantly in their scope, origin, and modern clinical application.
Key Differences
Origins and Historical Basis: Kent’s Repertory is a classical text originally published in 1897, which remains the “backbone of practical homoeopathic prescribing” [[5]]. Synthesis Repertory was developed in the 1990s and is directly based on the 6th American edition of Kent’s Repertory, containing all of its original rubrics [[3]].
Scope and Size: The original Kent Repertory contained approximately 700 remedies [[5]]. In contrast, Synthesis is a massive expansion that includes over 2,000 remedies and more than 220,000 additions [[5]].
Data and Updates: Kent’s work is a static historical document based on classical provings. Synthesis aims to correct, update, and improve upon Kent’s original work by integrating contributions from many leading homoeopaths and newer clinical data [[3]]. For instance, the “Mind” chapter in Synthesis has significantly more updated medicines and rubrics compared to Kent’s version [[3]].
Structure and Clinical Features: Kent’s work relies on a strict classical hierarchy emphasizing mental and general symptoms. Synthesis maintains this structure but adds extensive modern clinical rubrics, such as separate sections for “type of pain rubrics” that are absent in Kent’s older format [[4]].
Technology Integration: Synthesis was developed alongside modern repertorization software (such as RADAR), making it a highly dynamic, software-friendly database for contemporary case analysis, whereas Kent is traditionally used in its static book form [[4]].
References
1. Kent JT. Repertory of the homoeopathic materia medica. 6th American ed. Chicago: Medical Century Co.; 1897.
2. Schroyens F. Synthesis: Repertorium homeopathicum syntheticum. Edition 9.1. London: Homeopathic Book Publishers; 2010.
3. Homeobook.com. History and development of Synthesis Repertory [Internet]. [cited 2026 Aug 7]. Available from: https://www.homeobook.com/history-and-development-of-synthesis-repertory/
4. RadarOpus. The Repertory Order of Synthesis [Internet]. RadarOpus; 2022 [cited 2026 Aug 7]. Available from: https://www.radaropus.us/wp-content/uploads/2022/06/The-Repertory-Order-of-Synthesis.pdf
5. Thieme Connect. Kent’s Repertory is the backbone of practical homeopathic prescribing [Internet]. Homœopathic Links. Thieme E-Journals; [cited 2026 Aug 7]. Available from: https://www.thieme-connect.com/products/ejournals/html/10.1055/s-2008-1038806
Etymology and Origin of the Term "Repertory" The term "repertory" originates from the Late Latin word repertorium, which translates to an "inventory," "list," or "storehouse" [1]. It is derived from the Latin verb reperire, meaning "to find out" or "to discover" [1]. In a general sense, it refers toRead more
Etymology and Origin of the Term “Repertory”
The term “repertory” originates from the Late Latin word repertorium, which translates to an “inventory,” “list,” or “storehouse” [1]. It is derived from the Latin verb reperire, meaning “to find out” or “to discover” [1]. In a general sense, it refers to a repository where things are stored or found.
Meaning in Homoeopathy
In homoeopathy, a repertory is an extensive index or “storehouse” of clinical symptoms (rubrics) recorded during drug provings and clinical practice [2]. It is systematically arranged—typically alphabetically from head to toe—to help the physician analyze a patient’s total symptom picture and identify the similimum (the most similar homeopathic remedy) [3].
Historical Origin in Homoeopathy
While Dr. Samuel Hahnemann, the founder of homoeopathy, recognized the necessity of systematizing symptoms, he did not author a repertory himself [2]. The practical origin of the homeopathic repertory is credited to Dr. Clemens von Bönninghausen, who published the first true homeopathic repertory, the Antipsoric Repertory, in 1832 [4]. This foundational work was later expanded by pioneers such as Georg Jahr (1838) and James Tyler Kent (1897).
References
See less1. Online Etymology Dictionary. Repertory [Internet]. Douglas Harper; 2001 [cited 2026 Aug 7]. Available from: https://www.etymonline.com/word/repertory
2. Tiwari SK. History and evolution of repertory. In: Essentials of repertorisation homoeopathy. New Delhi: B. Jain Publishers; 2004. p. 15-22.
3. Kane JA. Homeopathic medical repertory. Delhi: B. Jain Publishers; 2004. p. 11-15.
4. Boenninghausen CMF. Antipsoric repertory. New Delhi: B. Jain Publishers; 1832 (reprinted).