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LGWP Propellants

A transition from the use of HFA 134a and HFA 227 as propellants in metered dose inhalers (MDIs) to lower global warming potential (LGWP) propellants is in the early stages


Learn more about these LGWP propellants:

HFA 152a
HFO 1234ze(e)


Recent news about LGWP propellants:

Resources for the LGWP transition

MSP Supporting the Shift to Next-Generation Propellants banner

Videos


Learn more about the transition:

IPAC-RS Workshop on the transition

View IPAC-RS’s October 11, 2023 Workshop on the Transition to Low Global Warming Potential Propellants for Metered Dose Inhalers

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Upcoming Events
Sponsored by Intertek

Want information about upcoming OINDP-related events delivered directly to your inbox? click here

October 14-October 15: Advancing Bioequivalence Frameworks for Inhalation and Nasal Drug Products: Optimizing In Vitro, In Vivo, and In Silico Methods, Rockville, MD, USA

October 19-October 20: MVIC Autumn Training 2026, Lund, Sweden

October 21-October 22: MVIC Symposium, Lund, Sweden

November 10-November 11: Rescon Europe 2026, Porto, Portugal

December 9-December 11: DDL 2026, Edinburgh, Scotland

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Capsules and blisters
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