LSD is just one thoughts-altering substance in a category of prescription drugs known as hallucinogens, which trigger individuals to own hallucinations—things that someone sees, hears or feels that look like authentic but are in fact developed because of the thoughts. Albert Hofmann, a researcher Using the Swiss chemical company Sandoz, https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share