Proving Medicines

Organon Aphorism §114

With the exception of these narcotic substances, in experiments with moderate doses of medicine on healthy bodies, we observe only their primary action, i.e., those symptoms wherewith the medicine deranges the health of the human being and develops in him a morbid state of longer or shorter duration.

Samuel Hahnemann, Organon of Medicine, 6th edition (Boericke translation, public domain).

Expert explanation & clinical interpretation for this aphorism are coming soon.