Caffeine
4 sources
Also known as coffee
Caffeine is a a CNS stimulant, and also the most widely used psychoactive substance in the world. It is legal and unregulated in most parts of the world, and is found in many commonly sold products. It has a good safety profile, though regular heavy use can cause physical dependence and contribute to certain medical conditions.
Oral
Route dataTripSit
| Threshold | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| 10 mg | 20–75 mg | — | 250–400 mg | 400 mg+ |
0500 mg
LightCommonStrongHeavy
| Onset | 5–10 minutes |
|---|---|
| Total | 1.5–5 hours |
| After-effects | 3–4 hours |
OnsetCome-upPeakOffset
Caution / uncertain
Plan when to take Caffeine — see where onset, peak and comedown land on the clock
Plan a dose of Caffeine
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Source: TripSit — Caffeine ↗
Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.