Drug Interaction Report

Consumer information for this interaction is not currently available.

MONITOR: Coadministration with CYP450 1A2 inhibitors or dual CYP450 1A2/3A4 inhibitors may increase the systemic exposure to roflumilast and its pharmacologically active N-oxide metabolite. In drug interaction studies, the total exposure to roflumilast and roflumilast N-oxide increased by 25%, 47% and 59% with the CYP450 1A2 inhibitor enoxacin and the dual CYP450 1A2/3A4 inhibitors cimetidine and fluvoxamine, respectively.

MANAGEMENT: Treatment with roflumilast should be re-evaluated if an interaction is suspected and persistent intolerability occurs. Patients should be advised to contact their physician if they experience increased frequency and/or severity of side effects such as diarrhea, nausea, abdominal pain, weight loss, and headache.

Grapefruit juice may increase the blood levels of certain medications such as norgestimate. You may want to limit your consumption of grapefruit and grapefruit juice during treatment with norgestimate. However, if you have been regularly consuming grapefruit or grapefruit juice with the medication, then it is advisable for you to talk with your doctor before changing the amounts of these products in your diet, as this may alter the effects of your medication. Contact your doctor if your condition changes or you experience increased side effects. Orange juice is not expected to interact.

Information for this minor interaction is available on the professional version.

Information for this minor interaction is available on the professional version.