Index > Factsheets > 1B-LSD


Summary1B-LSD (1-butanoyl-lysergic acid diethylamide) is an LSD analogue which appears to be about as potent as 1P-LSD (slightly more potent than LSD) and has a slightly shorter duration than that of LSD, again thought to be about the same as 1P-LSD. Released in late 2018, and marketed agressively as a replacement for 1P-LSD. 1B-LSD does not yet have a clearly established safety profile,
DoseOral Light: 25-50ug Common: 50-125ug's Strong: 125-250ug's.
NOTE: At the time of this chemical's release, the manufacturers claimed 1B-LSD was expected to be slightly less potent than 1P-LSD, supposedly owing to the increased mass of the butanoyl group over the propionyl group, however anecdotes seem to indicate approximate equipotency to 1P-LSD.
Onset45-90 minutes
Duration8-12 hours
After-effects6-24 hours