and caffeine both decrease sedation. Use Caution/Monitor.carbenoxoloneMonitor Closely (1)levalbuterol and carbenoxolone both decrease serum potassium. Use Caution/Monitor.carbinoxamineMonitor Closely (1)carbinoxamine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.carvedilolMonitor Closely (2)carvedilol decreases effects of levalbuterol by pharmacodynamic antagonism. Use Caution/Monitor. carvedilol increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.celecoxibMonitor Closely (1)celecoxib increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.celiprololMonitor Closely (2)celiprolol decreases effects of levalbuterol by pharmacodynamic antagonism. Use Caution/Monitor. celiprolol increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.ceritinibMonitor Closely (1)ceritinib and levalbuterol both increase QTc interval. Use Caution/Monitor.chloral hydrateMonitor Closely (1)chloral hydrate increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.chlordiazepoxideMonitor Closely (1)chlordiazepoxide increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.chloroquineSerious - Use Alternative (1)chloroquine and levalbuterol both increase QTc interval. Avoid or Use Alternate Drug.chlorothiazideMonitor Closely (1)levalbuterol and chlorothiazide both decrease serum potassium. Use Caution/Monitor.Minor (1)levalbuterol, chlorothiazide. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. Hypokalemia.chlorpheniramineMonitor Closely (1)chlorpheniramine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.chlorpromazineMonitor Closely (1)chlorpromazine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.chlorthalidoneMonitor Closely (1)levalbuterol and chlorthalidone both decrease serum potassium. Use Caution/Monitor.Minor (1)levalbuterol, chlorthalidone. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. Hypokalemia.choline magnesium trisalicylateMonitor Closely (1)choline magnesium trisalicylate increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor. .cinnarizineMonitor Closely (1)cinnarizine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.citalopramMonitor Closely (1)citalopram and levalbuterol both increase QTc interval. Use Caution/Monitor.clarithromycinMonitor Closely (1)clarithromycin and levalbuterol both increase QTc interval. Use Caution/Monitor.clemastineMonitor Closely (1)clemastine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.clomipramineMonitor Closely (1)clomipramine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.Serious - Use Alternative (1)clomipramine, levalbuterol. Other (see comment). Avoid or Use Alternate Drug. Comment: Tricyclic antidepressants increase or decrease effects of sympathomimetics, by blocking reuptake of NE, or blocking uptake of indirect sympathomimetics into the adrenergic neuron.clonazepamMonitor Closely (1)clonazepam increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.clorazepateMonitor Closely (1)clorazepate increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.clozapineMonitor Closely (2)clozapine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor. clozapine and levalbuterol both increase QTc interval. Use Caution/Monitor.codeineMonitor Closely (1)codeine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.crizotinibMonitor Closely (1)crizotinib and levalbuterol both increase QTc interval. Use Caution/Monitor.cyclizineMonitor Closely (1)cyclizine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.cyclopenthiazideMonitor Closely (1)levalbuterol and cyclopenthiazide both decrease serum potassium. Use Caution/Monitor.Minor (1)levalbuterol, cyclopenthiazide. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. Hypokalemia.cyproheptadineMonitor Closely (1)cyproheptadine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dasatinibMonitor Closely (1)dasatinib and levalbuterol both increase QTc interval. Use Caution/Monitor.deflazacortMonitor Closely (1)levalbuterol and deflazacort both decrease serum potassium. Use Caution/Monitor.degarelixMonitor Closely (1)degarelix and levalbuterol both increase QTc interval. Use Caution/Monitor.desfluraneMonitor Closely (1)desflurane increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.desipramineMonitor Closely (1)desipramine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.Serious - Use Alternative (1)desipramine, levalbuterol. Other (see comment). Avoid or Use Alternate Drug. Comment: Tricyclic antidepressants increase or decrease effects of sympathomimetics, by blocking reuptake of NE, or blocking uptake of indirect sympathomimetics into the adrenergic neuron.deutetrabenazineMonitor Closely (1)deutetrabenazine and levalbuterol both increase QTc interval. Use Caution/Monitor. At the maximum recommended dose, deutetrabenazine does not prolong QT interval to a clinically relevant extent. Certain circumstances may increase risk of torsade de pointes and/or sudden death in association with drugs that prolong the QTc interval (eg, bradycardia, hypokalemia or hypomagnesemia, coadministration with other drugs that prolong QTc interval, presence of congenital QT prolongation).dexchlorpheniramineMonitor Closely (1)dexchlorpheniramine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dexfenfluramineMonitor Closely (2)levalbuterol and dexfenfluramine both decrease sedation. Use Caution/Monitor. levalbuterol and dexfenfluramine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dexmedetomidineMonitor Closely (1)dexmedetomidine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dexmethylphenidateMonitor Closely (2)levalbuterol and dexmethylphenidate both decrease sedation. Use Caution/Monitor. levalbuterol and dexmethylphenidate both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dextroamphetamineMonitor Closely (2)levalbuterol and dextroamphetamine both decrease sedation. Use Caution/Monitor. levalbuterol and dextroamphetamine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dextromoramideMonitor Closely (1)dextromoramide increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.diamorphineMonitor Closely (1)diamorphine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dichlorphenamideMonitor Closely (2)dichlorphenamide and levalbuterol both decrease serum potassium. Use Caution/Monitor. dichlorphenamide, levalbuterol. Either increases toxicity of the other by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Both drugs can cause metabolic acidosis.diclofenacMonitor Closely (1)diclofenac increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.diethylpropionMonitor Closely (2)levalbuterol and diethylpropion both decrease sedation. Use Caution/Monitor. levalbuterol and diethylpropion both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.difenoxin hclMonitor Closely (1)difenoxin hcl increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.diflunisalMonitor Closely (1)diflunisal increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.digoxinMonitor Closely (1)digoxin increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.dimenhydrinateMonitor Closely (1)dimenhydrinate increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.diphenhydramineMonitor Closely (1)diphenhydramine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.diphenoxylate hclMonitor Closely (1)diphenoxylate hcl increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dipipanoneMonitor Closely (1)dipipanone increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.dobutamineMonitor Closely (3)dobutamine and levalbuterol both decrease serum potassium. Use Caution/Monitor. dobutamine and levalbuterol both decrease sedation. Use Caution/Monitor. dobutamine and levalbuterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dolasetronMonitor Closely (1)dolasetron and levalbuterol both increase QTc interval. Use Caution/Monitor.donepezilMonitor Closely (1)donepezil and levalbuterol both increase QTc interval. Use Caution/Monitor.dopamineMonitor Closely (2)levalbuterol and dopamine both decrease sedation. Use Caution/Monitor. levalbuterol and dopamine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.dopexamineMonitor Closely (4)dopexamine, levalbuterol. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. dopexamine and levalbuterol both decrease serum potassium. Use Caution/Monitor. dopexamine and levalbuterol both decrease sedation. Use Caution/Monitor. dopexamine and levalbuterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.doxepinMonitor Closely (2)doxepin increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor. doxepin and levalbuterol both increase QTc interval. Use Caution/Monitor.Serious - Use Alternative (1)doxepin, levalbuterol. Other (see comment). Avoid or Use Alternate Drug. Comment: Tricyclic antidepressants increase or decrease effects of sympathomimetics, by blocking reuptake of NE, or blocking uptake of indirect sympathomimetics into the adrenergic neuron.droperidolMonitor Closely (1)droperidol increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.drospirenoneMonitor Closely (1)drospirenone increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.efavirenzMonitor Closely (1)efavirenz and levalbuterol both increase QTc interval. Use Caution/Monitor.encorafenibMonitor Closely (1)encorafenib and levalbuterol both increase QTc interval. Use Caution/Monitor.entrectinibMonitor Closely (1)entrectinib and levalbuterol both increase QTc interval. Use Caution/Monitor.ephedrineMonitor Closely (3)ephedrine and levalbuterol both decrease serum potassium. Use Caution/Monitor. ephedrine and levalbuterol both decrease sedation. Use Caution/Monitor. ephedrine and levalbuterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.epinephrineMonitor Closely (3)epinephrine and levalbuterol both decrease serum potassium. Use Caution/Monitor. epinephrine and levalbuterol both decrease sedation. Use Caution/Monitor. epinephrine and levalbuterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.epinephrine racemicMonitor Closely (3)levalbuterol and epinephrine racemic both decrease serum potassium. Use Caution/Monitor. levalbuterol and epinephrine racemic both decrease sedation. Use Caution/Monitor. levalbuterol and epinephrine racemic both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.eribulinMonitor Closely (1)eribulin and levalbuterol both increase QTc interval. Use Caution/Monitor.esmololMonitor Closely (2)esmolol decreases effects of levalbuterol by pharmacodynamic antagonism. Use Caution/Monitor. esmolol increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.estazolamMonitor Closely (1)estazolam increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.ethacrynic acidMonitor Closely (1)levalbuterol and ethacrynic acid both decrease serum potassium. Use Caution/Monitor.Minor (1)levalbuterol, ethacrynic acid. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. Hypokalemia.ethanolMonitor Closely (1)ethanol increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.etodolacMonitor Closely (1)etodolac increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.eucalyptusMinor (1)eucalyptus increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Minor/Significance Unknown.fenfluramineMonitor Closely (2)levalbuterol and fenfluramine both decrease sedation. Use Caution/Monitor. levalbuterol and fenfluramine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.fenoprofenMonitor Closely (1)fenoprofen increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.fexinidazoleSerious - Use Alternative (1)fexinidazole and levalbuterol both increase QTc interval. Avoid or Use Alternate Drug. Avoid coadministration of fexinidazole with drugs known to block potassium channels or prolong QT interval.fingolimodMonitor Closely (1)fingolimod and levalbuterol both increase QTc interval. Use Caution/Monitor.fluoxetineMonitor Closely (1)fluoxetine and levalbuterol 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 systemfluphenazineMonitor Closely (1)fluphenazine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.flurazepamMonitor Closely (1)flurazepam increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.flurbiprofenMonitor Closely (1)flurbiprofen increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.formoterolMonitor Closely (3)formoterol and levalbuterol both decrease serum potassium. Use Caution/Monitor. formoterol and levalbuterol both decrease sedation. Use Caution/Monitor. formoterol and levalbuterol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.fostemsavirMonitor Closely (1)levalbuterol and fostemsavir both increase QTc interval. Use Caution/Monitor. QTc prolongation reported with higher than recommended doses of fostemsavir. furosemideMonitor Closely (1)levalbuterol and furosemide both decrease serum potassium. Use Caution/Monitor.Minor (1)levalbuterol, furosemide. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. Hypokalemia.gemifloxacinMonitor Closely (1)gemifloxacin and levalbuterol both increase QTc interval. Use Caution/Monitor.gentamicinMonitor Closely (1)levalbuterol and gentamicin both decrease serum potassium. Use Caution/Monitor.gilteritinibMonitor Closely (1)gilteritinib and levalbuterol both increase QTc interval. Use Caution/Monitor.green teaMonitor Closely (1)green tea increases effects of levalbuterol by pharmacodynamic synergism. Use Caution/Monitor. Due to caffeine content. Combination may increase CNS stimulatory effects due to caffeine in green tea.haloperidolMonitor Closely (1)haloperidol increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.hydrochlorothiazideMonitor Closely (1)levalbuterol and hydrochlorothiazide both decrease serum potassium. Use Caution/Monitor.Minor (1)levalbuterol, hydrochlorothiazide. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. Hypokalemia.hydromorphoneMonitor Closely (1)hydromorphone increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.hydroxyzineMonitor Closely (1)hydroxyzine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.ibuprofenMonitor Closely (1)ibuprofen increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.ibuprofen IVMonitor Closely (1)ibuprofen IV increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.iloperidoneMonitor Closely (1)iloperidone increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.imipramineMonitor Closely (1)imipramine increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.Serious - Use Alternative (1)imipramine, levalbuterol. Other (see comment). Avoid or Use Alternate Drug. Comment: Tricyclic antidepressants increase or decrease effects of sympathomimetics, by blocking reuptake of NE, or blocking uptake of indirect sympathomimetics into the adrenergic neuron.indapamideMonitor Closely (1)levalbuterol and indapamide both decrease serum potassium. Use Caution/Monitor.Minor (1)levalbuterol, indapamide. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. Hypokalemia.indomethacinMonitor Closely (1)indomethacin increases and levalbuterol decreases