The effects of heat and freeze-thaw cycling on naloxone stability

Original research
by
Lai, Dulcie et al

Release Date

2019

Geography

Canada

Language of Resource

English

Full Text Available

Yes

Open Access / OK to Reproduce

Yes

Peer Reviewed

Yes

Objective

Take-Home Naloxone (THN) kits may be stored in non-standard conditions, including in vehicles, backpacks, and out of doors. To evaluate whether these non-standard storage conditions affect stability, we investigated the impact of heat and freeze-thaw cycling on naloxone hydrochloride stability.

Findings/Key points

Naloxone hydrochloride remains chemically stable following exposure to heat or freeze-thaw cycles after 28 days. If THN kits are stored in non-standard conditions (for up to 28 days) the active naloxone is likely to remain stable. Despite this, pharmacists should continue to emphasize the importance of appropriate storage of THN kits to ensure optimal efficacy should naloxone administration be required in an emergency situation.

Design/methods

Ampoules of naloxone were subjected to freeze-thaw or heat cycles and were then analyzed using high-performance liquid chromatography

Keywords

Harm reduction
Overdose