Growing evidence suggests psilocybin, a naturally occurring psychedelic, is a safe and promising pharmacotherapy for treatment of mood and substance use disorders when administered as part of a structured intervention. In most trials to date, psilocybin dose has been administered on a weight-adjusted basis rather than the more convenient procedure of administering a fixed dose.

From Journal of Psychopharmacology by Sage Publishers

Albert Garcia-Romeu, Frederick S Barrett, Theresa M Carbonaro, 

Matthew W Johnson, Roland R Griffiths