and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.butorphanolbutorphanol increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.caffeineformoterol and caffeine both decrease sedation. Use Caution/Monitor.carbenoxoloneformoterol and carbenoxolone both decrease serum potassium. Use Caution/Monitor.carbinoxaminecarbinoxamine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.carvedilolcarvedilol increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.carvedilol decreases effects of formoterol by pharmacodynamic antagonism. Use Caution/Monitor.celecoxibcelecoxib increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.celiprololceliprolol increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.celiprolol decreases effects of formoterol by pharmacodynamic antagonism. Use Caution/Monitor.ceritinibceritinib and formoterol both increase QTc interval. Use Caution/Monitor.chloral hydratechloral hydrate increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.chlordiazepoxidechlordiazepoxide increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.chlorothiazidemometasone inhaled increases toxicity of chlorothiazide by Other (see comment). Use Caution/Monitor. Comment: Corticosteroids may increase hypokalemic effect of loop diuretics.formoterol and chlorothiazide both decrease serum potassium. Use Caution/Monitor.chlorpheniraminechlorpheniramine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.chlorthalidonemometasone inhaled increases toxicity of chlorthalidone by Other (see comment). Use Caution/Monitor. Comment: Corticosteroids may increase hypokalemic effect of loop diuretics.chlorpromazinechlorpromazine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.chlorthalidoneformoterol and chlorthalidone both decrease serum potassium. Use Caution/Monitor.choline magnesium trisalicylatecholine magnesium trisalicylate increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor. .cinnarizinecinnarizine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.ciprofloxacinmometasone inhaled and ciprofloxacin both increase Other (see comment). Use Caution/Monitor. Coadministration of quinolone antibiotics and corticosteroids may increase risk of tendon rupture.clarithromycinclarithromycin will increase the level or effect of mometasone inhaled by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Increases riak for systemic corticosteroid side effectsclemastineclemastine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.clomipramineclomipramine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.clonazepamclonazepam increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.clorazepateclorazepate increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.clozapineclozapine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.cobicistatcobicistat will increase the level or effect of mometasone inhaled by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Increases risk for systemic corticosteroid side effectscodeinecodeine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.corticorelinmometasone inhaled decreases effects of corticorelin by Other (see comment). Use Caution/Monitor. Comment: Corticosteroids may blunt plasma ACTH response to corticorelin.cyclizinecyclizine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.cyclopenthiazideformoterol and cyclopenthiazide both decrease serum potassium. Use Caution/Monitor.cyproheptadinecyproheptadine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.darunavirdarunavir increases levels of mometasone inhaled by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Potential for increased toxicity. Increased risk of Cushing's syndrome or adrenal suppression.dasatinibdasatinib and formoterol both increase QTc interval. Modify Therapy/Monitor Closely.deferasiroxmometasone inhaled increases toxicity of deferasirox by Other (see comment). Use Caution/Monitor. Comment: Corticosteroids increase risk of gastrointestinal ulceration/irritation.deflazacortformoterol and deflazacort both decrease serum potassium. Use Caution/Monitor.degarelixdegarelix and formoterol both increase QTc interval. Use Caution/Monitor.desipraminedesipramine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dexchlorpheniraminedexchlorpheniramine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dexfenfluramineformoterol and dexfenfluramine both decrease sedation. Use Caution/Monitor.formoterol and dexfenfluramine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dexmedetomidinedexmedetomidine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dexmethylphenidateformoterol and dexmethylphenidate both decrease sedation. Use Caution/Monitor.formoterol and dexmethylphenidate both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dextroamphetamineformoterol and dextroamphetamine both decrease sedation. Use Caution/Monitor.formoterol and dextroamphetamine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dextromoramidedextromoramide increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.diamorphinediamorphine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dichlorphenamidedichlorphenamide and formoterol both decrease serum potassium. Use Caution/Monitor.dichlorphenamide, formoterol. Either increases toxicity of the other by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Both drugs can cause metabolic acidosis.diclofenacdiclofenac increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.diethylpropionformoterol and diethylpropion both decrease sedation. Use Caution/Monitor.formoterol and diethylpropion both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.difenoxin hcldifenoxin hcl increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.diflunisaldiflunisal increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.digoxindigoxin increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.dimenhydrinatedimenhydrinate increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.diphenhydraminediphenhydramine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.diphenoxylate hcldiphenoxylate hcl increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dipipanonedipipanone increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dobutaminedobutamine and formoterol both decrease serum potassium. Use Caution/Monitor.dobutamine and formoterol both decrease sedation. Use Caution/Monitor.dobutamine and formoterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dolasetrondolasetron and formoterol both increase QTc interval. Modify Therapy/Monitor Closely.donepezildonepezil and formoterol both increase QTc interval. Use Caution/Monitor.dopamineformoterol and dopamine both decrease sedation. Use Caution/Monitor.formoterol and dopamine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dopexaminedopexamine and formoterol both decrease serum potassium. Use Caution/Monitor.dopexamine and formoterol both decrease sedation. Use Caution/Monitor.dopexamine and formoterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dopexamine, formoterol. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor.doxepindoxepin increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.droperidoldroperidol increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.drospirenonedrospirenone increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.efavirenzefavirenz and formoterol both increase QTc interval. Use Caution/Monitor.elvitegravir/cobicistat/emtricitabine/tenofovir DFelvitegravir/cobicistat/emtricitabine/tenofovir DF will increase the level or effect of mometasone inhaled by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Increases riak for systemic corticosteroid side effectsencorafenibencorafenib and formoterol both increase QTc interval. Use Caution/Monitor.ephedrineephedrine and formoterol both decrease serum potassium. Use Caution/Monitor.ephedrine and formoterol both decrease sedation. Use Caution/Monitor.ephedrine and formoterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.epinephrineepinephrine and formoterol both decrease serum potassium. Use Caution/Monitor.epinephrine and formoterol both decrease sedation. Use Caution/Monitor.epinephrine and formoterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.epinephrine racemicformoterol and epinephrine racemic both decrease serum potassium. Use Caution/Monitor.formoterol and epinephrine racemic both decrease sedation. Use Caution/Monitor.formoterol and epinephrine racemic both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.eribulineribulin and formoterol both increase QTc interval. Use Caution/Monitor.escitalopramescitalopram increases toxicity of formoterol by QTc interval. Use Caution/Monitor.esmololesmolol increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.esmolol decreases effects of formoterol by pharmacodynamic antagonism. Use Caution/Monitor.estazolamestazolam increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.ethacrynic acidformoterol and ethacrynic acid both decrease serum potassium. Use Caution/Monitor.mometasone inhaled increases toxicity of ethacrynic acid by Other (see comment). Use Caution/Monitor. Comment: Corticosteroids may increase hypokalemic effect of loop diuretics.ethanolethanol increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.fosamprenavirfosamprenavir increases levels of mometasone inhaled by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Potential for increased toxicity. Increased risk of Cushing's syndrome or adrenal suppression.etodolacetodolac increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.fenfluramineformoterol and fenfluramine both decrease sedation. Use Caution/Monitor.formoterol and fenfluramine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.fenoprofenfenoprofen increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.fingolimodfingolimod and formoterol both increase QTc interval. Use Caution/Monitor.flecainideflecainide and formoterol both increase QTc interval. Modify Therapy/Monitor Closely.fluoxetinefluoxetine and formoterol both increase QTc interval. Modify Therapy/Monitor Closely. Fluoxetine prolongs the QT interval; the prescribing information for fluoxetine recommends avoiding concurrent use of other drugs that may prolong the QT interval; risk may be increased with higher doses and/or when associated with hypokalemia; drugs that prolong the QTc interval may potentiate the effects of beta2 agonists on the cardiovascular systemfluphenazinefluphenazine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.flurazepamflurazepam increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.flurbiprofenflurbiprofen increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.fluvoxaminefluvoxamine and formoterol both increase QTc interval. Modify Therapy/Monitor Closely.foscarnetformoterol and foscarnet both increase QTc interval. Modify Therapy/Monitor Closely.fostemsavirformoterol and fostemsavir both increase QTc interval. Use Caution/Monitor. QTc prolongation reported with higher than recommended doses of fostemsavir. furosemideformoterol and furosemide both decrease serum potassium. Use Caution/Monitor.mometasone inhaled increases toxicity of furosemide by Other (see comment). Use Caution/Monitor. Comment: Corticosteroids may increase hypokalemic effect of loop diuretics.gemifloxacinmometasone inhaled and gemifloxacin both increase Other (see comment). Use Caution/Monitor. Coadministration of quinolone antibiotics and corticosteroids may increase risk of tendon rupture.gemifloxacin and formoterol both increase QTc interval. Use Caution/Monitor.gentamicinformoterol and gentamicin both decrease serum potassium. Use Caution/Monitor.hyaluronidasemometasone inhaled decreases effects of hyaluronidase by Other (see comment). Modify Therapy/Monitor Closely. Comment: Corticosteroids may decrease therapeutic effects of hyaluronidase.gilteritinibgilteritinib and formoterol both increase QTc interval. Use Caution/Monitor.goserelingoserelin increases toxicity of formoterol by QTc interval. Use Caution/Monitor. Increases risk of torsades de pointes.haloperidolhaloperidol increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.histrelinhistrelin increases toxicity of formoterol by QTc interval. Use Caution/Monitor. Increases risk of torsades de pointes.hydrochlorothiazidemometasone inhaled increases toxicity of hydrochlorothiazide by Other (see comment). Use Caution/Monitor. Comment: Corticosteroids may increase hypokalemic effect of loop diuretics.formoterol and hydrochlorothiazide both decrease serum potassium. Use Caution/Monitor.hydromorphonehydromorphone increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.indinavirindinavir increases levels of mometasone inhaled by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Potential for increased toxicity. Increased risk of Cushing's syndrome or adrenal suppression.hydroxyzinehydroxyzine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.ibuprofenibuprofen increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.ibuprofen IVibuprofen IV increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.iloperidoneformoterol and iloperidone both increase QTc interval. Modify Therapy/Monitor Closely.iloperidone increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.imipramineimipramine increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.indapamideformoterol and indapamide both decrease serum potassium. Use Caution/Monitor.indomethacinindomethacin increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.isoproterenolformoterol and isoproterenol both decrease serum potassium. Use Caution/Monitor.formoterol and isoproterenol both decrease sedation. Use Caution/Monitor.formoterol and isoproterenol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.itraconazoleitraconazole will increase the level or effect of mometasone inhaled by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Increases risk for systemic corticosteroid side effectsitraconazole and formoterol both increase QTc interval. Use Caution/Monitor.ketoconazoleketoconazole will increase the level or effect of mometasone inhaled by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Increases riak for systemic corticosteroid side effectsketoprofenketoprofen increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.ketorolacketorolac increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.ketorolac intranasalketorolac intranasal increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor. .ketotifen, ophthalmicketotifen, ophthalmic increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.labetalollabetalol increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.labetalol decreases effects of formoterol by pharmacodynamic antagonism. Use Caution/Monitor.lapatinibformoterol and lapatinib both increase QTc interval. Modify Therapy/Monitor Closely.lenvatinibformoterol and lenvatinib