Answer
Combining Penthrox (methoxyflurane) with opioids may produce additive depressant effects because opioids are central nervous system depressants, so patients receiving both should be observed closely.
Sources for this answer
- PENTHROX 99.9%, 3 ml inhalation vapour, liquidGalen Limited · emc · SmPC §4.5 Interaction with other medicinal products · Version 12Document updated
Sources checked