Answer
It reverses central nervous system and breathing depression caused by opioids, including heroin and opioid medicines.
Sources for this answer
- Naloxone 400 micrograms/ml solution for injection — Current selected SmPCemc · Summary of Product Characteristics
- UK GovernmentUK Government · Reputable Web
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.