11/14/2025
🔥❄️ Heat, cold, or a little chaos—naloxone still holds strong.
A 2019 study found that naloxone remains chemically stable even after exposure to extreme temperatures and repeated freeze–thaw cycles for up to 28 days. That means your kit in the car, backpack, or winter coat pocket can still save a life when it’s needed most.
Still, always replace it when possible to ensure top effectiveness.