Aptar Pharma and the FDA are collaborating to replace hydrofluorocarbons (HFCs) in metered-dose inhalers with climate-friendly propellants. HFCs are potent greenhouse gases, and this transition is driven by the Kigali Amendment and EPA regulations to reduce healthcare's carbon footprint. The project focuses on maintaining drug efficacy and patient safety while switching to next-generation propellants like HFO-1234ze. This research aims to streamline regulatory approvals and prevent supply chain disruptions as HFC quotas tighten globally by 2030.
