Eudrenin (juːˈdrɛnɪn) is a word that is not commonly used in everyday language. Its spelling can be broken down into three parts: "eu" which is pronounced as "yoo" and means "good" or "well", "dren" which is pronounced as "drɛn" and means "to run" and "in" which is pronounced as "ɪn" and indicates something that is in a certain state or condition. Therefore, the word "eudrenin" could be interpreted as "in a good running state or condition".
Trade name of a 0.25 per cent. solution of beta-eucaine hydrochloride in a 1:10,000 solution of adrenalin chloride in physiological salt solution.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.