Translation of "Kodansha" into Portuguese

However, the “Kodansha Encyclopedia of Japan” says that Seishu Hanaoka (1760-1835) prepared an anesthetic substance called “mafutsusan” by mixing “six crude drugs.”

Mas a “Kodansha Encyclopedia of Japan” diz que Seishu Hanaoka (1760-1835) preparava um anestésico chamado “mafutsusan” misturando “seis ervas naturais”.