The Accidental Discovery of LSD (image) American Chemical Society Share Print E-Mail Caption Bicycle Day (April 19) honors chemist Albert Hoffman's colorful journey after he accidentally discovered LSD. Chemists had discovered a migraine medicine made from a fungus. Continuing this work, Hoffman discovered lysergic acid diethylamine, or LSD. In April 1943, he accidentally exposed himself to LSD in the lab and felt dizzy with visual distortions. After a second similar exposure, he left for home early via bicycle. New research on LSD may lead to pharmaceutical therapies: Watch the latest Reactions video here: https://youtu.be/L32mAiLXnLs. Credit The American Chemical Society Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.