Serum fluoride levels following commencement of methoxyflurane for patient analgesia in an ambulance service.

Editor—Methoxyflurane, once a frequently used anaesthetic agent,1 is re-emerging as an inhalation analgesic. In modern practice, it is given in doses of up to 6 mL via a proprietary patient-controlled self-delivery device2  with an activated carbon filter designed to adsorb some methoxyflurane vapour from the patient’s exhaled breath.3 Methoxyflurane is an organic vapour, identified as […]