These combinations are considered extremely harmful and should always be avoided.
lithium
Aliases: lsd-25, acid, cid, lucy
LSD is a popular psychedelic with a relatively long history of use and research, and as such is known to be relatively safe despite its extremely high potency. It is the archetypical psychedelic to which all others are compared, and remains in popular usage.
These combinations are considered extremely harmful and should always be avoided.