Post Authorisation Safety Study (PASS) to Evaluate the Risks of Hepatotoxicity and Nephrotoxicity from Administration of Methoxyflurane (Penthrox®) for Pain Relief in Hospital Accident & Emergency Departments in the United Kingdom (Penthrox-PASS)First published 05/04/2016 Last updated 15/03/2024 EU PAS number: EUPAS13040StudyOngoing