DrugsPRO / Library / Butorfanoli

Library

Butorfanoli

Butorphanol is classified as Mixed opioid agonist–antagonist (predominantly κ-agonist; partial μ-agonist/antagonist). It belongs to the Morphinan opioid (synthetic morphinan derivative) chemical class.

Butorfanoli molecular structure
Butorfanoli molecular structure diagram from the DrugsPRO substance library.

Also known as: Stadol, Butorphanolum, LEVO-BC-2627

Classification

No data available for this section yet.

Effects

  • Pain Relief
  • Sedation
  • Nausea
  • Sweating
  • Itching
  • Lightheadedness
  • Dizziness
  • Euphoria
  • Anxiety
  • Confusion
  • Drowsiness
  • Introspection Enhancement
  • Closed Eye Visuals

Routes of Administration

Insufflated

Dosage

  • Heavy: ≥3.5 mg
  • Light: 0.5–1 mg
  • Common: 1–2 mg
  • Strong: 2–3 mg
  • Threshold: 0.25 mg

Duration

  • Onset: 0.17-0.5 h
  • Peak: 0.5-1.5 h
  • Offset: 1-2 h
  • After Effects: 2-6 h
  • Total Duration: 2-6 h

Intravenous

Dosage

  • Heavy: ≥2.5 mg
  • Light: 0.5 mg
  • Common: 1 mg
  • Strong: 1.5–2 mg
  • Threshold: 0.25 mg

Duration

  • Onset: 0.02-0.05 h
  • Peak: 0.5-1 h
  • Offset: 1-2 h
  • After Effects: 2-4 h
  • Total Duration: 2-4 h

Intramuscular

Dosage

  • Heavy: ≥4 mg
  • Light: 1 mg
  • Common: 2 mg
  • Strong: 3 mg
  • Threshold: 0.5 mg

Duration

  • Onset: 0.17-0.5 h
  • Peak: 0.5-1.5 h
  • Offset: 1-2 h
  • After Effects: 2-6 h
  • Total Duration: 3-6 h

Oral

Dosage

  • Heavy: ≥20 mg
  • Light: 6 mg
  • Common: 8–12 mg
  • Strong: 16 mg
  • Threshold: 4 mg

Duration

  • Onset: 0.5-1 h
  • Peak: 1-2 h
  • Offset: 1-2 h
  • After Effects: 2-6 h
  • Total Duration: 3-6 h

Harm Reduction

Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.

Sources

Substance data is aggregated from the following public harm-reduction and reference sources.

No external data sources listed for this substance yet.

Links

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Butorphanol - DrugsPRO aineopas

Butorphanol: Butorphanol is classified as Mixed opioid agonist–antagonist (predominantly κ-agonist; partial μ-agonist/antagonist). It belongs to the Morphinan opioid (synthetic morphinan derivative) chemical class.

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