Naloxone
An opioid antagonist that rapidly binds to opioid receptors, blocking the effects of drugs like morphine, heroin, or fentanyl.
Dosage by Body Weight
In a pediatric emergency (accidental ingestion), 0.1 mg/kg is given. Nasal spray is fixed-dose (4mg) and safe for use in all ages.
- Body Weight
- Any weight
- Dose
- 4 mg (Nasal) or 0.1 mg/kg (IM)
- Frequency
- Once (Repeat every 2-3 mins if no response)
- Tracking Notes
- Always call emergency services immediately.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| Any weight | 4 mg (Nasal) or 0.1 mg/kg (IM) | Once (Repeat every 2-3 mins if no response) | Always call emergency services immediately. |
Formulation
Purpose
Emergency reversal of opioid overdose.
Generic Name
Naloxone HydrochlorideBranded Drug Names
Naloxone is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:
Scheduled Drug
Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.
Alternatives
Safety Advice
Alcohol
CAUTIONNaloxone: Alcohol may increase dizziness, stomach upset, dehydration, or other side effects. Avoid or limit alcohol and follow medical advice.
Pregnancy
SAFE IF PRESCRIBEDNaloxone: Use during pregnancy only if prescribed after a healthcare provider weighs the benefits and risks.
Breast Feeding
SAFE IF PRESCRIBEDNaloxone: Use while breastfeeding only with healthcare provider guidance, especially for repeated or long-term treatment.
Driving
CAUTIONNaloxone: This medicine may cause dizziness, drowsiness, weakness, or blurred vision in some people. Avoid driving if affected.
Liver
CAUTIONNaloxone: Use with caution in liver disease and consult your healthcare provider if you have abnormal liver tests or jaundice.
Kidney
CAUTIONNaloxone: Use with caution in kidney disease because dose adjustment or monitoring may be needed for some patients.