For those that aren’t familiar, Narcan, or naloxone, is a drug that can be used to reverse the effects of a heroin or opioid overdose, including fentanyl, morphine, and various prescription pain medications. It is currently available in both injection form and as an intranasal spray, and more information on Narcan can be found here.

How Long After an Overdose will Narcan Work?

In order to be effective, Narcan needs to be administered as close in time as possible to the overdose. An opiate overdose, whether via heroin, fentanyl, morphine, or prescription medications, usually involves severe central nervous system and respiratory depression, meaning the person is usually not breathing. The longer a person goes without oxygen, the larger their odds of severe short- and long-term effects, including brain damage, coma, and death.

Further, a person who has been given Narcan still needs immediate medical attention. Narcan is not meant to be a substitute for treatment in a hospital or by a licensed health practitioner.

If you or someone you know is struggling with drugs or alcohol, there is help available- call 1-800-203-2024 to speak with a qualified professional today.

References:
https://www.drugabuse.gov/publications/prescription-drugs-abuse-addiction/opioids/what-are-possible-consequences-opioid-use-abuse