In order to understand how the knowledge of the Pharmacy increase the knowledge of Materia Medica, let us see what type of knowledge of the Pharmacy imports to us. Basically it helps us in-
1~ Mode of preparation of Mother tincture of various drugs from different sources.
2~ Method of potentisation of dynamisation.
3~ Proper methods of collection of the drug substances and their preservation and their pharmacological action so far assessed.
Materia Medica was built up from the symptoms syndrome obtained and observed during human proving. If one has to explore the latent symptoms the genuinely of the drug substance and methodology of potentisation should be connect for which knowledge of Pharmacy essential.
The sources of drugs have helped to formulate the generic symptoms which are also a part of the knowledge of the Materia Medica.
Posology is a part related to both Materia Medica and Pharmacy. It is the question of how much and in what potency.
So it is true that knowledge of Homoeopathic Pharmacy improves our Materia Medica on a large scale.