The dose makes the poison

"The dose makes the poison" (Latin: dosis sola facit venenum 'only the dose makes the poison') is a proverb intended to indicate a basic principle of toxicology. It is credited to Swiss physician Paracelsus who expressed the following classic toxicology maxim: This is often condensed to: "The dose makes the poison" or in Latin, "Sola dosis facit venenum".

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