Arthur Heffter, M.D., Ph.D.

Jun 15, 1859 - Feb 8, 1925

Dr. Arthur Heffter was a German psychologist and chemist. Heffter identified the active principle in the peyote cactus as mescaline and subsequently performed the first pure isolation of a psychedelic compound in 1897. He was the first chairman of the German Society of Pharmacologists, and was largely responsible for the first Handbook of Experimental Pharmacology. Arthur’s legacy lives on in the Heffter Institute, a namesake in his honor. Learn more about his life and works on the Heffter Institute’s page, About Dr. Arthur Heffter.


  • 1898 | Ueber Pellote | link

  • 1897 | Excerpt from Heffter’s laboratory notebook | Heffter Institute

  • 1896 | Ueber Cacteenalkaloïde | link