Drug reference

naloxone

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

Competitive opioid antagonist; synthetic congener of oxymorphone

Common side effects

  • Withdrawal reaction precipitated
  • Abdominal cramps
  • Cardiac arrest
  • Pulmonary edema
  • Ventricular fibrillation

Contraindications

  • Hypersensitivity

Related conditions

Frequently asked questions

What drug class is naloxone?

naloxone belongs to: Musculoskeletal.

How does naloxone work?

Competitive opioid antagonist; synthetic congener of oxymorphone

What are the common side effects of naloxone?

Withdrawal reaction precipitated, Abdominal cramps, Cardiac arrest, Pulmonary edema, Ventricular fibrillation

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