Arndt–Schulz rule
Complementary & alternative
⚠This is not folk medicine. This page describes a NON-traditional method (complementary/alternative or conventional medicine), outside FolkKB's folk/herbal focus. It is informational only — not medical advice, diagnosis or treatment. Evidence and safety vary widely; consult a qualified professional.
Arndt–Schulz rule or Schulz' law is a claimed law concerning the effects of pharmaca or poisons in various concentrations. It states that:For every substance, small doses stimulate, moderate doses inhibit, large doses kill.