Drug reference

butorphanol

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Drug class

Musculoskeletal (Opioids)

Mechanism of action

Narcotic agonist-analgesic of kappa opiate receptors and partial agonist of mu opiate receptors; inhibits ascending pain pathways, which causes alteration in response to pain; produces analgesia, respiratory depression, and sedation

Common side effects

  • Insomnia
  • Sedation
  • Dizziness
  • Nasal congestion
  • Nausea and/or vomiting

Contraindications

  • Absolute: opioid dependence, respiratory depression, respiratory failure Relative: cardiac arrhythmias, cardiovascular disease, coronary insufficiency, myocardial infarction, toxin-mediated diarrhea

Related conditions

Frequently asked questions

What drug class is butorphanol?

butorphanol belongs to: Musculoskeletal.

How does butorphanol work?

Narcotic agonist-analgesic of kappa opiate receptors and partial agonist of mu opiate receptors; inhibits ascending pain pathways, which causes alteration in response to pain; produces analgesia, respiratory depression, and sedation

What are the common side effects of butorphanol?

Insomnia, Sedation, Dizziness, Nasal congestion, Nausea and/or vomiting

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