Expired naloxone is not harmful, but it has a reduced ability to reverse an overdose. To extend the lifetime of naloxone, it should be stored in a dark and dry place at room temperature.
How long past expiration date is Narcan good?
Naloxone may remain stable for decades after the labeled expiration date. Medications are intended to be stored based on United States Pharmacopeial Convention (USP) standards, which include a desired temperature range and an expiration date. Naloxone preparations have a labeled shelf life of 12 to 24 months.24 Jan 2019
Can I use expired naloxone?
We do not recommend distributing Naloxone Kits that are expired, and encourage people to replace or get new kits when naloxone vials are expired or exposed to extreme temperature, but people may choose to hold on to their expired kits if they wish them to serve as a backup.
Do naloxone kits have an expiry date?
Medications are intended to be stored based on United States Pharmacopeial Convention (USP) standards, which include a desired temperature range and an expiration date. Naloxone preparations have a labeled shelf life of 12 to 24 months.24 Jan 2019