psychedelic
LSD dosage 2026: safe ranges by route and weight.
LSD has 2 documented routes of administration. The most common is oral. Always start at the lowest dose range and wait the full onset window before redosing.
Dose ranges by route.
Oral
- Seuil
- 15 μg
- Léger
- 25–75 μg
- Courant
- 75–150 μg
- Fort
- 150–300 μg
- Lourd
- 300 μg
Sublingual
- Seuil
- 15 μg
- Léger
- 25–75 μg
- Courant
- 75–150 μg
- Fort
- 150–300 μg
- Lourd
- 300 μg
| Voie | Seuil | Léger | Courant | Fort | Lourd |
|---|---|---|---|---|---|
| Oral | 15 μg | 25–75 μg | 75–150 μg | 150–300 μg | 300 μg |
| Sublingual | 15 μg | 25–75 μg | 75–150 μg | 150–300 μg | 300 μg |
Commence par le bas. Le corps, la tolérance et les mélanges changent tout.
Duration timeline.
Oral
total ~ 1380 min- Montée
- 20–60 min
- Pic
- 3–5h
- Descente
- 3–5h
- Après-effets
- 6–12h
Sublingual
total ~ 1365 min- Montée
- 15–45 min
- Pic
- 3–5h
- Descente
- 3–5h
- Après-effets
- 6–12h
Related pages
FAQ.
- What is a safe LSD dose?
- A "safe" dose depends on body weight, tolerance, set and setting. Start at the threshold or light range for your chosen route and do not redose until onset is complete.
- How do I calculate LSD dose by weight?
- For substances where bodyweight matters: divide the mg amount by your weight in kg to get the mg/kg ratio. Most common dose data assumes a 70–80 kg adult.
- What happens if I take too much LSD?
- Exceeding the "heavy" range significantly increases risk of adverse effects, medical emergency, or overdose. Harm reduction starts with knowing the ranges.
- How long does LSD last?
- Duration varies by route. The timeline section below shows onset, peak, offset and after-effects for each route.
- Can I mix LSD with other substances?
- Many combinations are dangerous. Check the interaction checker tool before combining anything. Never combine on a first experience.
- Is LSD dosage the same for all routes?
- No. Bioavailability differs significantly by route — intranasal and IV routes typically require lower doses than oral for equivalent effect.
- Should I weigh my LSD dose?
- Always. A milligram scale (0.001g precision) is essential for most substances. Volumetric dosing with a solvent is the gold standard for sub-10mg doses.