depressant
Benzodiazépines dosage 2026: safe ranges by route and weight.
Benzodiazépines 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
- 1 mg
- Léger
- 2–5 mg
- Courant
- 5–15 mg
- Fort
- 15–30 mg
- Lourd
- 30 mg
Sublingual
- Seuil
- 0.5 mg
- Léger
- 1–5 mg
- Courant
- 5–15 mg
- Fort
- 15–30 mg
- Lourd
- 30 mg
| Voie | Seuil | Léger | Courant | Fort | Lourd |
|---|---|---|---|---|---|
| Oral | 1 mg | 2–5 mg | 5–15 mg | 15–30 mg | 30 mg |
| Sublingual | 0.5 mg | 1–5 mg | 5–15 mg | 15–30 mg | 30 mg |
Commence par le bas. Le corps, la tolérance et les mélanges changent tout.
Duration timeline.
Oral
total ~ 3840 min- Montée
- 15–60 min
- Pic
- 60–180 min
- Descente
- 4–12h
- Après-effets
- 12–48h
Sublingual
total ~ 3740 min- Montée
- 5–20 min
- Pic
- 45–120 min
- Descente
- 4–12h
- Après-effets
- 12–48h
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 Benzodiazépines 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 Benzodiazépines 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 Benzodiazépines?
- Exceeding the "heavy" range significantly increases risk of adverse effects, medical emergency, or overdose. Harm reduction starts with knowing the ranges.
- How long does Benzodiazépines last?
- Duration varies by route. The timeline section below shows onset, peak, offset and after-effects for each route.
- Can I mix Benzodiazépines with other substances?
- Many combinations are dangerous. Check the interaction checker tool before combining anything. Never combine on a first experience.
- Is Benzodiazépines 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 Benzodiazépines 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.