Psychedelic drug researchers

American philosopher, psychologist, and pragmatist (1842–1910)

Swiss chemist (1906–2008)

Hungarian-British author and journalist (1905–1983)

American psychologist (1920–1996)

American biochemist (1912–2004)

American ethnobotanist and mystic (1946–2000)

Czech pychiatrist

American spiritual teacher, author and psychologist

American medicinal chemist, biochemist, pharmacologist, psychopharmacologist, and author (1925–2014)

British author who promotes pseudoscientific theories

Canadian parapsychologist, reincarnation researcher (1918–2007)

founder of Alcoholics Anonymous (1895–1971)

American mycologist

American ethnobotanist (1915-2001)

American physician (1915-2001)

American author and the widow of chemist Alexander Shulgin (1931–2022)

Chilean psychiatrist and author (1932-2019)

German psychologist (1936–2019)

British psychiatrist (1917-2004)

American ethnobiologist (1898-1986)

1850-1929 German botanist and pharmacologist

British psychiatrist, neuropsychopharmacologist

religious studies scholar (1919-2016)

US physician and writer; alternative medicine advocate

German pharmacologist and chemist (1859-1925)

Canadian biochemist, physician and psychiatrist (1917–2009)

American botanist

Canadian anthropologist

German ethnopharmacologist, anthropologist, author (1957–2022)

British activist

American author and journalist

American drug researcher

American chemist (1918–1999)

American ethnobotanist (1944-1989)

Israeli psychologist

Psychedlic Visionary (1941-2017)

Colombian anthropologist

American journalist

American ethnopharmacologist and author

anthropologist (1911–1996)

American drug researcher

American zoologist (born 1954)

Hungarian psychologist

Medical academic

Italian ethnobotanist

British researcher

American Linguist (1915-1944)

American activist and writer (1904-1974)

Pharmacologist and medicinal chemist

American scientific researcher (1943–2010)