Law of simplex

The single remedy:
Hahnemann on the single remedy: In no case is it requisite to administer more than one single, simple medicinal substance at one time. This is one aspect of the Hahnemann approach which have several dimensions to understand the doctrine.

In fact the Homoeopathic remedies are proved in single and the materia medica is built up with the collection of symptoms observed by the provers. These symptoms are collected and segregated according to their characteristics. The effects of the medicine is tested either in planned provings or they have got collected from the accidental provings.

Another aspect is that only a single remedy is required, which is most similar matching the symptoms of the sick person.

The other problem is, the physician will not understand which medicine is curing if more than the single remedy is used, this might deviate from the use of just one remedy.

The possibility of synergistic and/or antagonic actions cannot be ruled out, if more than one medicine is used. The effect will be the sum total of the effects of the separate drugs. The diluted ingredients of the drug may even result in interaction and could cause the adverse effects in the body.

The concept of Vital force, which is governing the human body comprehensively, needs a single identity. Therefore the medicine should be one to correct the disturbances and dishormony of the body by a single medicine at a time.