LSD is only one thoughts-altering substance in a class of medicine called hallucinogens, which induce people today to get hallucinations—things that somebody sees, hears or feels that seem like genuine but are in actual fact produced from the mind. Albert Hofmann, a researcher While using the Swiss chemical firm Sandoz, https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share