opioid
Héroïne dosage 2026: safe ranges by route and weight.
Héroïne has 3 documented routes of administration. The most common is insufflated. Always start at the lowest dose range and wait the full onset window before redosing.
Dose ranges by route.
Sniffé
- Seuil
- 5 mg
- Léger
- 5–15 mg
- Courant
- 15–30 mg
- Fort
- 30–50 mg
- Lourd
- 50 mg
Fumé
- Seuil
- 5 mg
- Léger
- 5–10 mg
- Courant
- 10–30 mg
- Fort
- 30–50 mg
- Lourd
- 50 mg
Intravenous
- Seuil
- 2 mg
- Léger
- 2–7 mg
- Courant
- 7–15 mg
- Fort
- 15–30 mg
- Lourd
- 30 mg
| Voie | Seuil | Léger | Courant | Fort | Lourd |
|---|---|---|---|---|---|
| Sniffé | 5 mg | 5–15 mg | 15–30 mg | 30–50 mg | 50 mg |
| Fumé | 5 mg | 5–10 mg | 10–30 mg | 30–50 mg | 50 mg |
| Intravenous | 2 mg | 2–7 mg | 7–15 mg | 15–30 mg | 30 mg |
Commence par le bas. Le corps, la tolérance et les mélanges changent tout.
Duration timeline.
Sniffé
total ~ 610 min- Montée
- 3–10 min
- Pic
- 60–120 min
- Descente
- 2–4h
- Après-effets
- 2–4h
Fumé
total ~ 513 min- Montée
- 0–3 min
- Pic
- 45–90 min
- Descente
- 2–3h
- Après-effets
- 2–4h
Intravenous
total ~ 541 min- Montée
- 0–1 min
- Pic
- 60–120 min
- Descente
- 2–3h
- Après-effets
- 2–4h
Bodyweight quick formula
For a 70 kg adult, divide the total mg dose by 70 to get your mg/kg ratio. Most published ranges assume this reference weight. If you weigh significantly less, reduce proportionally; significantly more does not always mean linearly higher doses.
Related pages
FAQ.
- What is a safe Héroïne 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 Héroïne 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 Héroïne?
- Exceeding the "heavy" range significantly increases risk of adverse effects, medical emergency, or overdose. Harm reduction starts with knowing the ranges.
- How long does Héroïne last?
- Duration varies by route. The timeline section below shows onset, peak, offset and after-effects for each route.
- Can I mix Héroïne with other substances?
- Many combinations are dangerous. Check the interaction checker tool before combining anything. Never combine on a first experience.
- Is Héroïne 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 Héroïne 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.