By duration
In this collection

Psychotria viridis
Psychedelic · 5-20 minutes (smoked) · Intense
The shortest of the classical psychedelics. Smoked DMT produces a complete experience in under twenty minutes.

Salvia divinorum
Dissociative · 5-30 minutes (smoked) · Intense
A brief, often disorienting break from ordinary consciousness. Salvia experiences are short but rarely forgotten.

A faster, more dissolving experience than its better-known relative. Often used in dedicated ceremonial contexts.

Anadenanthera peregrina
Psychedelic · 1-2 hours · Intense
Snuffed in Amazonian and Orinoco traditions. Intense for its hour-long duration.

Nicotiana rustica
Grounding · 15-30 minutes · Moderate
Not a journey in the usual sense, but a brief intervention with clarifying effects.

Ketamine hydrochloride
Dissociative · 1-2 hours · Moderate
The longer end of "quick." A dissociative arc complete in roughly two hours, increasingly used in clinical contexts.
Each collection is editorial -- a path through the library, not a recommendation. Read each medicine on its own terms.