Diseases are caused by pathogenic molecules binding to specific biological targets in our body and inhibiting their normal activities. If the symptom complexes expressed in a particular disease condition are similar to the symptom complexes produced by a particular drug substance when applied in healthy individuals, it means that particular drug substance as well as the particular disease-causing substance contain some similar chemical molecules that can bind to similar biological targets and produce similar molecular inhibitions. This is the scientific meaning of term SIMILIMUM used in homeopathy paradigms.
Drug molecules that are conformationally similar to pathogenic molecules can comptete with them and replace them, by a phenomenon known in biochemistry as molecular mimicry, thereby relieving the biological molecules from the pathological inhibitions. This is actually the biological mechanism involved in the homeopathy principle Similia Similibus Curentur.
Since drug molecules can also bind to various biological targets and cause new molecular inhibitions and pathological conditions, homeopathy uses Molecular Imprints of drug molecules as therapeutic agents instead of drug molecules of drugs selected as similimum. This is the reason why scientific homeopathy does not agree with the use of mother tinctures and potencies below 12c, as they may contain drug molecules, and may cause harmful effects.
Drugs potentized above 12c contain only molecular imprints of drug molecules. Molecular Imprints of drug molecules can act as artificial binding sites for the pathogenic molecules having conformational similarity and deactivate them, thereby removing the pathological inhibitions, same time without causing any new inhibitions, since molecular imprints cannot interefere in the normal interactions between biological molecules and their natural ligands. This is the reason why homeopathy uses drugs selected as similimum, not in molecular forms, but in molecular imprinted forms or potencies above Avogadro limit.