rate. Use Caution/Monitor.dopexamine, terbutaline. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor.doxepindoxepin increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.droperidoldroperidol increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.drospirenonedrospirenone increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.ephedrineephedrine and terbutaline both decrease serum potassium. Use Caution/Monitor.ephedrine and terbutaline both decrease sedation. Use Caution/Monitor.ephedrine and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.epinephrineepinephrine and terbutaline both decrease serum potassium. Use Caution/Monitor.epinephrine and terbutaline both decrease sedation. Use Caution/Monitor.epinephrine and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.epinephrine racemicepinephrine racemic and terbutaline both decrease serum potassium. Use Caution/Monitor.epinephrine racemic and terbutaline both decrease sedation. Use Caution/Monitor.epinephrine racemic and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.eprosartaneprosartan increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.esmololesmolol increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.esmolol decreases effects of terbutaline by pharmacodynamic antagonism. Use Caution/Monitor.estazolamestazolam increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.ethacrynic acidterbutaline and ethacrynic acid both decrease serum potassium. Use Caution/Monitor.ethanolethanol increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.etodolacetodolac increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.fenfluramineterbutaline and fenfluramine both decrease sedation. Use Caution/Monitor.terbutaline and fenfluramine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.fenoprofenfenoprofen increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.fluoxetinefluoxetine and terbutaline 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 terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.flurazepamflurazepam increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.flurbiprofenflurbiprofen increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.formoterolformoterol and terbutaline both decrease serum potassium. Use Caution/Monitor.formoterol and terbutaline both decrease sedation. Use Caution/Monitor.formoterol and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.fostemsavirterbutaline and fostemsavir both increase QTc interval. Use Caution/Monitor. QTc prolongation reported with higher than recommended doses of fostemsavir.furosemideterbutaline and furosemide both decrease serum potassium. Use Caution/Monitor.gentamicinterbutaline and gentamicin both decrease serum potassium. Use Caution/Monitor.green teagreen tea increases effects of terbutaline by pharmacodynamic synergism. Use Caution/Monitor. Due to caffeine content. Combination may increase CNS stimulatory effects due to caffeine in green tea.haloperidolhaloperidol increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.hydrochlorothiazideterbutaline and hydrochlorothiazide both decrease serum potassium. Use Caution/Monitor.hydromorphonehydromorphone increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.hydroxyzinehydroxyzine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.ibuprofenibuprofen increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.ibuprofen IVibuprofen IV increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.iloperidoneiloperidone increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.imipramineimipramine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.indapamideterbutaline and indapamide both decrease serum potassium. Use Caution/Monitor.indomethacinindomethacin increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.irbesartanirbesartan increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.isoproterenolisoproterenol and terbutaline both decrease serum potassium. Use Caution/Monitor.isoproterenol and terbutaline both decrease sedation. Use Caution/Monitor.isoproterenol and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.ketoprofenketoprofen increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.ketorolacketorolac increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.ketorolac intranasalketorolac intranasal increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor. .ketotifen, ophthalmicketotifen, ophthalmic increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.labetalollabetalol increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.labetalol decreases effects of terbutaline by pharmacodynamic antagonism. Use Caution/Monitor.levalbuterollevalbuterol and terbutaline both decrease serum potassium. Use Caution/Monitor.levalbuterol and terbutaline both decrease sedation. Use Caution/Monitor.levalbuterol and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.levorphanollevorphanol increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.lisdexamfetamineterbutaline and lisdexamfetamine both decrease sedation. Use Caution/Monitor.terbutaline and lisdexamfetamine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.lofepraminelofepramine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.lofexidinelofexidine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.loprazolamloprazolam increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.lorazepamlorazepam increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.lormetazepamlormetazepam increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.lornoxicamlornoxicam increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.losartanlosartan increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.loxapineloxapine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.loxapine inhaledloxapine inhaled increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.maprotilinemaprotiline increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.marijuanamarijuana increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.meclofenamatemeclofenamate increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.mefenamic acidmefenamic acid increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.melatoninmelatonin increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.meloxicammeloxicam increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.meperidinemeperidine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.meprobamatemeprobamate increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.metaproterenolmetaproterenol and terbutaline both decrease serum potassium. Use Caution/Monitor.metaproterenol and terbutaline both decrease sedation. Use Caution/Monitor.metaproterenol and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.methadonemethadone increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.methamphetamineterbutaline and methamphetamine both decrease sedation. Use Caution/Monitor.terbutaline and methamphetamine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.methylenedioxymethamphetamineterbutaline and methylenedioxymethamphetamine both decrease sedation. Use Caution/Monitor.terbutaline and methylenedioxymethamphetamine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.methylphenidateterbutaline and methylphenidate both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.metolazoneterbutaline and metolazone both decrease serum potassium. Use Caution/Monitor.metoprololmetoprolol increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.metoprolol increases effects of terbutaline by pharmacodynamic synergism. Use Caution/Monitor.metoprolol decreases effects of terbutaline by pharmacodynamic antagonism. Use Caution/Monitor.midazolammidazolam increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.midodrineterbutaline and midodrine both decrease sedation. Use Caution/Monitor.terbutaline and midodrine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.mirtazapinemirtazapine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.modafinilterbutaline and modafinil both decrease sedation. Use Caution/Monitor.morphinemorphine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.motherwortmotherwort increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.moxonidinemoxonidine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.nabilonenabilone increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.nabumetonenabumetone increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.nadololnadolol increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.nadolol decreases effects of terbutaline by pharmacodynamic antagonism. Use Caution/Monitor.nalbuphinenalbuphine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.naproxennaproxen increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.nebivololnebivolol increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.nebivolol decreases effects of terbutaline by pharmacodynamic antagonism. Use Caution/Monitor.norepinephrinenorepinephrine and terbutaline both decrease serum potassium. Use Caution/Monitor.norepinephrine and terbutaline both decrease sedation. Use Caution/Monitor.norepinephrine and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.nortriptylinenortriptyline increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.olanzapineolanzapine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.olmesartanolmesartan increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.olodaterol inhaledterbutaline and olodaterol inhaled both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor. Caution with coadministration of adrenergic drugs by any route because of additive sympathetic effectsopium tinctureopium tincture increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.osilodrostatosilodrostat and terbutaline both increase QTc interval. Use Caution/Monitor.oxaprozinoxaprozin increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.oxazepamoxazepam increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.oxycodoneoxycodone increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.oxymorphoneoxymorphone increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.paliperidonepaliperidone increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.papaveretumpapaveretum increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.parecoxibparecoxib increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.penbutololpenbutolol increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.penbutolol decreases effects of terbutaline by pharmacodynamic antagonism. Use Caution/Monitor.pentazocinepentazocine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.pentobarbitalpentobarbital increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.perphenazineperphenazine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.phendimetrazineterbutaline and phendimetrazine both decrease sedation. Use Caution/Monitor.terbutaline and phendimetrazine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.phenobarbitalphenobarbital increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.phenoxybenzaminephenoxybenzamine, terbutaline. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Hypotension, tachycardia.phentermineterbutaline and phentermine both decrease sedation. Use Caution/Monitor.terbutaline and phentermine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.phenylephrineterbutaline and phenylephrine both decrease sedation. Use Caution/Monitor.terbutaline and phenylephrine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.phenylephrine POterbutaline and phenylephrine PO both decrease sedation. Use Caution/Monitor.terbutaline and phenylephrine PO both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.pholcodinepholcodine increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.pimozidepimozide increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.pindololpindolol increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.pindolol decreases effects of terbutaline by pharmacodynamic antagonism. Use Caution/Monitor.pirbuterolpirbuterol and terbutaline both decrease serum potassium. Use Caution/Monitor.pirbuterol and terbutaline both decrease sedation. Use Caution/Monitor.pirbuterol and terbutaline both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Use Caution/Monitor.piroxicampiroxicam increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Use Caution/Monitor.potassium acid phosphatepotassium acid phosphate increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.potassium chloridepotassium chloride increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.potassium citratepotassium citrate