Essential Synthesis

Essential Synthesis

  • Frederik Schroyens


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Less is More... Easy to read and easy to use with no theoretical approaches, and no dream provings - a precisely focused FULL REPERTORY, that includes only the proven essentials.

Maximize your repertorial skills with Pasma's Practice Makes Perfect

1980 pp hb
ISBN 978-0-9557151-0-5


Containing the following NEW information, the Essential Synthesis reveals:

  • Kentís Treasures; personal annotations contained in Kent's own repertory, including 11,368 additions and corrections, plus 333 hand-written additions that Kent added to his own copy of Hering's Guiding Symptoms
  • .
  • For the first time in printed form, a chapter of VETERINARY information; symptoms, remedies of veterinary origin, and a list of veterinary concepts leading to related symptoms.

From the Book

Easy to Read = Easy to Use.
Users of the Synthesis Repertory in software form value its different "views" of the repertory.

We have created an Essential View - a precisely focused selection from the full repertory that include only the proven essentials - To achieve this, the Essential View is built with strict criteria:

  • No theoretical approaches
  • No dream or meditation provings
  • No very recent provings
  • No information that is not yet confirmed in the clinic

Up until now, one needed a computer to access this essential core of the repertory, Now one can use the Essential View in book form.

We've named it - The Essential Synthesis

Much thought and care has gone into creating the physical book itself.

  • The book has a practical cut out thumb index.
  • For easy reading, the font sizes are one size larger than in the Synthesis 9.1 book.
  • The page layouts were worked and reworked to achieve the best use of space, resulting in a lighter, more portable reference.

Frederik Schroyens, MD

(1953 -     )

Dr. Frederik Schroyens was born January 12, 1953 in Mechelen, Belgium.
He can be reached at 31 Muinklaan, 9000 Gent, Belgium.
His email address is

Dr. Schroyens is a 1977 medical graduate of the State University of Gent (Belgium) and a 1978 graduate of the one-year Homeopathic Training Course at the Faculty for Homeopathy in London (MFHom).

In 1981 Dr. Schroyens was the constitutive President of VSU, the largest Homeopathic School in Belgium. VSU provided a one-year introductory homeopathic training to more than 1,000 students and fully trained over 150 homeopaths. The homeopathic education was built up over a five-year program. Dr. Schroyens also founded the Masi-workshops in Belgium and Holland.

Dr. Schroyens was one of the first Radar users in 1986 and became enthusiastic about the increasing possibilities computer science offered to Homeopathy. Because of his dedication to the program, he became the Homeopathic Coordinator of the Radar Project.

In 1987 he was appointed as the main link between George Vithoulkas and the programming team of the University of Namur (Belgium) during the development of the Vithoulkas Expert System. He has accompanied George Vithoulkas on many of his seminars since 1988 and has assisted him on many of his consultations.

Dr. Schroyens published an introduction to homeopathy in 1984 in Dutch, which has been translated into French and Portuguese. In 1993 he edited a printed version of "Synthesis", the expanded Repertory linked to the Radar project.

A computer version of Synthesis exists in seven languages. This Repertory has also been printed in German, English, Dutch, Italian, Spanish and Portuguese. Translations into various other languages are ongoing.

Since 1995, Dr. Schroyens has published several books based on Synthesis such as "1001 Small Remedies" and "Arzneimittelbilder von Gemüt und Traume".

Dr. Schroyens lectures on the Radar project and homeopathy in Europe as well as in North and South America.