Naloxone is prescribed for:
- Opioid overdose reversal
- Emergency treatment of respiratory depression
- Available to patients at risk and their families
Lifesaving medication now available over-the-counter.
Back to Medication Guide
Naloxone
Generic Name: Naloxone Hydrochloride
Brand Names: Narcan, Kloxxado
Naloxone is an opioid antagonist that reverses opioid overdose and is available without prescription.
EmergencyOpioid Antagonist
What It's Used For
Side Effects
Common side effects (from opioid withdrawal):
- Nausea and vomiting
- Sweating
- Tachycardia
- Tremor
- Agitation
These are signs of opioid withdrawal, not true side effects.
Additional Information
What is Naloxone?
Naloxone is an opioid antagonist that rapidly reverses opioid effects in overdose.
OTC Availability
Now available without prescription as Narcan nasal spray.
Short Duration
Effects last 30-90 minutes - may need repeat doses as some opioids last longer.
For details, see MedlinePlus.
Medical Disclaimer: This information is for educational purposes only and should not be considered medical advice. Always consult with your healthcare provider before starting, stopping, or changing any medication. Your doctor can provide personalized recommendations based on your specific health condition and medical history.
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