A comprehensive resource for information about psychoactive substances, including their effects, risks, and cultural history. Erowid is known for its user-contributed experiences and educational content.
The World Health Organization's essential medicines list, updated in 2023, provides guidelines on safe, effective, and accessible medical treatments globally.
A harm reduction-focused guide offering detailed advice and practical information for the safe and responsible use of psychoactive substances.
An independent laboratory-based drug analysis service, providing verified information about the composition of substances to promote safety and harm reduction.