Assertion: morphine's use | /r/HasSubevent | decrease
Facets:
value: in active metabolite morphine plasma concentration
type: OTHER
Source sentences:
text: The concomitant use of Codeine Sulfate Tablets with all cytochrome P450 2D6 inhibitors (e.g., amiodarone, quinidine) may result in an increase in codeine plasma concentrations and a decrease in active metabolite morphine plasma concentration which could result in an analgesic efficacy reduction or symptoms of opioid withdrawal.