Methenamine Sodium Phosphate Monobasic Monohydrate Phenyl Sa + Alfentanil Interaction
Moderateinteraction on record
Description
Methylene blue inhibits CYP3A4/5 metabolism. Alfentanil has narrow therapeutic index; clinical relevance unknown but concurrent use requires caution.
Mechanism
CYP3A4/5 inhibition by methylene blue
Source: NLP:methenamine, sodium phosphate monobasic, phenyl salicylate, methylene blue, and hyoscyamine sulfate