“Mercury is one of the cures, that in times, where you had instinctive medicine, was an accepted medicament. But what does the healing, when you have to recieve a mercuy treatment because of syphilis?

It exactly heals as much, as is inserted into the blood in the proper dosis.  Exactly that much does the healing.” (Rudolf Steiner)

Source: Rudolf Steiner, “Physiologisch-Therapeutisches auf Grundlage der Geisteswissenschaft – Zur Therapie und Hygiene”, GA314, page 167