
itraconazole oral brand names and other generic formulations include:
Onmel Oral, Sporanox Oral, Sporanox Pulsepak Oral
methadone inj brand names and other generic formulations include:
Dolophine Inj
itraconazole oral and methadone inj
itraconazole oral will increase the level or effect of methadone inj by altering drug metabolism. Both drugs will increase abnormal heart beats (QT interval).
itraconazole oral and methadone inj
itraconazole oral will increase the level or effect of methadone inj by affecting hepatic/intestinal enzyme CYP3A4 metabolism. QT interval prolongation and serious arrhythmia (torsades de pointes) have occurred in patients using methadone concomitantly with oral itraconazole and/or other CYP3A4 inhibitors.
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Drug Interaction Categories
Contraindicated
Never use this combination of drugs because of high risk for dangerous interaction
Serious
Potential for serious interaction; regular monitoring by your doctor required or alternate medication may be needed
Significant
Potential for significant interaction (monitoring by your doctor is likely required)
Minor
Interaction is unlikely, minor, or nonsignificant