Answer
Monoamine oxidase inhibitors may prolong and intensify the antimuscarinic effects of diphenhydramine in Panadol NightPain, which should be used cautiously with these medicines or within two weeks of stopping one.
Sources for this answer
- Panadol NightPainHaleon UK Trading Limited · emc · SmPC §4.5 Interaction with other medicinal products · Version 16Document updated
Sources checked