stimulant
Méthamphétamine dosage 2026: safe ranges by route and weight.
Méthamphétamine 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
- 15–40 mg
- Fort
- 40–60 mg
- Lourd
- 60 mg
Oral
- Seuil
- 5 mg
- Léger
- 10–20 mg
- Courant
- 20–40 mg
- Fort
- 40–75 mg
- Lourd
- 75 mg
Fumé
- Seuil
- 5 mg
- Léger
- 5–15 mg
- Courant
- 15–30 mg
- Fort
- 30–50 mg
- Lourd
- 50 mg
| Voie | Seuil | Léger | Courant | Fort | Lourd |
|---|---|---|---|---|---|
| Sniffé | 5 mg | 5–15 mg | 15–40 mg | 40–60 mg | 60 mg |
| Oral | 5 mg | 10–20 mg | 20–40 mg | 40–75 mg | 75 mg |
| Fumé | 5 mg | 5–15 mg | 15–30 mg | 30–50 mg | 50 mg |
Commence par le bas. Le corps, la tolérance et les mélanges changent tout.
Duration timeline.
Sniffé
total ~ 2290 min- Montée
- 5–10 min
- Pic
- 3–6h
- Descente
- 3–8h
- Après-effets
- 12–24h
Oral
total ~ 2460 min- Montée
- 20–60 min
- Pic
- 4–8h
- Descente
- 4–8h
- Après-effets
- 12–24h
Fumé
total ~ 2161 min- Montée
- 0–1 min
- Pic
- 2–4h
- Descente
- 3–8h
- Après-effets
- 12–24h
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 Méthamphétamine 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 Méthamphétamine 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 Méthamphétamine?
- Exceeding the "heavy" range significantly increases risk of adverse effects, medical emergency, or overdose. Harm reduction starts with knowing the ranges.
- How long does Méthamphétamine last?
- Duration varies by route. The timeline section below shows onset, peak, offset and after-effects for each route.
- Can I mix Méthamphétamine with other substances?
- Many combinations are dangerous. Check the interaction checker tool before combining anything. Never combine on a first experience.
- Is Méthamphétamine 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 Méthamphétamine 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.