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Med Rx.

Timolol Maleate interactions

Checked as Timolol in this data source.

Full monograph for Timolol MaleateCheck it against another medicine

Medicines

555 documented

Medicines documented to interact with Timolol Maleate, worst severity first.
MedicineSeverityMechanismEffectSources
Aclidinium Bromide + Formoterol FumarateMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
AdrenalineMajorSynergyNoncardioselective beta-blockers can significantly enhance the pressor response to epinephrine. The mechanism involves blockade of beta-2 adrenergic receptors…25 sources — open the full entry
AminophyllineMajorAntagonismThe pharmacologic effects of theophyllines and beta-blockers are opposite. Nonselective and high doses of cardioselective beta-blockers may cause severe or…5 sources — open the full entry
Arformoterol TartrateMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
Articaine Hydrochloride + Epinephrine BitartrateMajorSynergyNoncardioselective beta-blockers can significantly enhance the pressor response to epinephrine. The mechanism involves blockade of beta-2 adrenergic receptors…25 sources — open the full entry
Beclometasone + Formoterol + GlycopyrroniumMajorAbsorption · Antagonism · SynergyBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…2 documented mechanisms44 sources — open the full entry
Beclomethasone Dipropionate + Formoterol FumarateMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
Budesonide + Formoterol FumarateMajorAntagonism · MetabolismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…2 documented mechanisms42 sources — open the full entry
Budesonide + Glycopyrronium Bromide + Formoterol FumarateMajorAbsorption · Antagonism · Metabolism · SynergyBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…3 documented mechanisms46 sources — open the full entry
CeritinibMajorSynergyCoadministration of ceritinib with other drugs that can slow the heart rate such as beta-blockers, calcium channel blockers, digitalis, and clonidine may…13 sources — open the full entry
Clonidine HydrochlorideMajorSynergyClonidine and beta-blockers may have synergistic pharmacodynamic effects resulting in marked AV block, bradycardia, and hypotension. Conversely, cases of…5 sources — open the full entry
Diltiazem HydrochlorideMajorSynergyAdditive reductions in heart rate, cardiac conduction, and cardiac contractility may occur when calcium channel blockers, especially verapamil and diltiazem…47 sources — open the full entry
Fluticasone Propionate + Formoterol FumarateMajorAntagonism · UnknownBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…2 documented mechanisms40 sources — open the full entry
Formoterol Fumarate + Glycopyrrolate + BudesonideMajorAbsorption · Antagonism · Metabolism · SynergyBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…3 documented mechanisms46 sources — open the full entry
Glycopyrronium Bromide + Formoterol FumarateMajorAbsorption · Antagonism · SynergyBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…2 documented mechanisms44 sources — open the full entry
Indacaterol + GlycopyrroniumMajorAbsorption · Antagonism · SynergyBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…2 documented mechanisms44 sources — open the full entry
Indacaterol + Glycopyrronium + Mometasone FuroateMajorAbsorption · Antagonism · SynergyBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…2 documented mechanisms44 sources — open the full entry
Indacaterol MaleateMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
LevosalbutamolOralRespirator preparationMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
Lidocaine + AdrenalineMajorMetabolism · SynergyNoncardioselective beta-blockers can significantly enhance the pressor response to epinephrine. The mechanism involves blockade of beta-2 adrenergic receptors…2 documented mechanisms35 sources — open the full entry
Lidocaine + EpinephrineMajorMetabolism · SynergyNoncardioselective beta-blockers can significantly enhance the pressor response to epinephrine. The mechanism involves blockade of beta-2 adrenergic receptors…2 documented mechanisms35 sources — open the full entry
MavacamtenMajorSynergyConcomitant use of other drugs that reduce cardiac contractility may potentiate the negative inotropic effects of mavacamten and increase the risk of heart…1 sources — open the full entry
Mometasone Furoate + Formoterol FumarateMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
RacepinephrineMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
Ritodrine HydrochlorideMajorAntagonismThe use of a nonselective beta blocker with ritodrine (a beta-2 agonist) may result in mutually antagonistic effects, negating the effect of one or both drugs.1 sources — open the full entry
SalbutamolbaseInhalerMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
Salbutamol + BudesonideMajorAntagonism · MetabolismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…2 documented mechanisms42 sources — open the full entry
Salbutamol + IpratropiumInhalerSolution for inhalationMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
Salmeterol + Fluticasone PropionateMajorAntagonism · UnknownBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…2 documented mechanisms40 sources — open the full entry
Salmeterol XinafoateMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
Terbutaline SulfateMajorAntagonismBeta-blockers may antagonize the effects of beta-2 adrenergic bronchodilators and precipitate acute, life-threatening bronchospasm in patients with asthma or…40 sources — open the full entry
TheophyllineMajorAntagonismThe pharmacologic effects of theophyllines and beta-blockers are opposite. Nonselective and high doses of cardioselective beta-blockers may cause severe or…5 sources — open the full entry
Tizanidine HydrochlorideMajorSynergyTizanidine may potentiate the hypotensive effect of some medications secondary to its alpha-2 adrenergic activity. Pharmacologic studies have found tizanidine…1 sources — open the full entry
Verapamil HydrochlorideMajorSynergyAdditive reductions in heart rate, cardiac conduction, and cardiac contractility may occur when calcium channel blockers, especially verapamil and diltiazem…47 sources — open the full entry
Abiraterone AcetateModerateMetabolismCoadministration with abiraterone acetate may increase the plasma concentrations of drugs that are substrates of the CYP450 2D6 isoenzyme. The mechanism is…6 sources — open the full entry
Acyclovir + HydrocortisoneModerateAntagonism · Metabolism · UnknownCorticosteroids may antagonize the effects of antihypertensive medications by inducing sodium and fluid retention. These effects may be more common with the…2 documented mechanisms2 sources — open the full entry
AlectinibModerateSynergyCoadministration of alectinib with other agents that can slow the heart rate may increase the risk of bradycardia.4 sources — open the full entry
Alfuzosin HydrochlorideModerateSynergyAdditive hypotensive effects may occur when beta-blockers are used in combination with alpha-blockers. In the presence of beta-blockade, the risk and/or…8 sources — open the full entry
AlprazolamModerateSynergyMany psychotherapeutic and CNS-active agents (e.g., anxiolytics, sedatives, hypnotics, antidepressants, antipsychotics, opioids, alcohol, muscle relaxants)…11 sources — open the full entry
Amiodarone HydrochlorideModerateSynergyAdditive effects of severe bradycardia, cardiac arrest, and ventricular fibrillation may occur in patients administered amiodarone and beta blockers. The…7 sources — open the full entry
AmisulprideModerateSynergyAmisulpride can cause dose- and concentration-dependent prolongation of the QT interval. The concomitant use of amisulpride with agents that can cause…11 sources — open the full entry
Amitriptyline HydrochlorideModerateSynergyMany psychotherapeutic and CNS-active agents (e.g., anxiolytics, sedatives, hypnotics, antidepressants, antipsychotics, opioids, alcohol, muscle relaxants)…11 sources — open the full entry
Amitriptyline Hydrochloride + ChlordiazepoxideModerateSynergyMany psychotherapeutic and CNS-active agents (e.g., anxiolytics, sedatives, hypnotics, antidepressants, antipsychotics, opioids, alcohol, muscle relaxants)…2 documented mechanisms11 sources — open the full entry
Amlodipine BesilateModerateMetabolism · SynergyAdditive reductions in heart rate, cardiac conduction, and cardiac contractility may occur when calcium channel blockers are used concomitantly with beta…46 sources — open the full entry
Amlodipine Besilate + AtenololModerateMetabolism · SynergyAdditive reductions in heart rate, cardiac conduction, and cardiac contractility may occur when calcium channel blockers are used concomitantly with beta…46 sources — open the full entry
Amlodipine Besilate + AtorvastatinModerateMetabolism · Synergy · UnknownAdditive reductions in heart rate, cardiac conduction, and cardiac contractility may occur when calcium channel blockers are used concomitantly with beta…2 documented mechanisms46 sources — open the full entry
Amlodipine Besilate + Benazepril HydrochlorideModerateMetabolism · Synergy · UnknownAdditive reductions in heart rate, cardiac conduction, and cardiac contractility may occur when calcium channel blockers are used concomitantly with beta…2 documented mechanisms46 sources — open the full entry
Amlodipine Besilate + Olmesartan MedoxomilModerateMetabolism · SynergyAdditive reductions in heart rate, cardiac conduction, and cardiac contractility may occur when calcium channel blockers are used concomitantly with beta…46 sources — open the full entry
Amlodipine Besilate + TelmisartanModerateMetabolism · Synergy · UnknownAdditive reductions in heart rate, cardiac conduction, and cardiac contractility may occur when calcium channel blockers are used concomitantly with beta…2 documented mechanisms46 sources — open the full entry
Amlodipine Besilate + ValsartanModerateMetabolism · Others · SynergyIn the Valsartan Heart Failure Trial, the combination of valsartan with a beta-blocker and an ACE inhibitor was associated with unfavorable outcomes on…2 documented mechanisms52 sources — open the full entry

Food & lifestyle

Conditions

Conditions in which Timolol Maleate needs care, as documented in this source.

Therapeutic duplication

Drug classes that overlap with Timolol Maleate, so taking both doubles up the same effect. This source publishes no per-row citations for duplication.