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Drug reference

Levobunolol

Beta Blocker · Ocular Hypotensive

Also known as Levobunolol hydrochloride

Beta BlockerOcular HypotensiveATC S01ED02
CDSCO approvedSchedule HATC S01ED02
EXCRETION
—
not curated
INTERACTIONS
12 major
SEVERE in our sources
PREGNANCY
—
not curated
Top interactionssee all 12 →
  • AdrenalineSevereTextbookKDT 7e · p133
  • SofosbuvirSevereTextbookHarrison 22e · unknown
  • AmilorideSevereDatabaseKDT 7e
  • AminophyllineSevereDatabaseDDInter

Mechanism

Levobunolol is a beta-adrenoceptor blocker. Beta-adrenoceptor blockers may produce benefit by blocking sympathetic activity.

Indications

GlaucomaOcular hypertensionChronic open-angle glaucomaGlaucoma (topical)

Dosing

Adult
1 drop OD (0.5% ophthalmic solution)
Geriatric
Potentially inappropriate in combination with verapamil or diltiazem (risk of heart block); with bradycardia (heart rate less than 50 beats per minute), type II heart block or complete heart block.

Contraindications

  • Asthma
  • Cardiogenic shock
  • Hypotension
  • Marked bradycardia
  • Metabolic acidosis
  • Phaeochromocytoma (apart from specific use with alpha-blockers)
  • Prinzmetal’s angina
  • Second-degree AV block
  • Severe peripheral arterial disease
  • Sick sinus syndrome
  • Third-degree AV block
  • Uncontrolled heart failure
  • Bronchospasm (including history of asthma or obstructive airways disease)

Side effects

Common
Symptoms of hypoglycaemia may be maskedSymptoms of thyrotoxicosis may be maskedbradycardiadepressionimpotence
Serious
  • Torsade de pointes (in susceptible patients)
  • Deterioration in liver function (in patients with portal hypertension)
  • exacerbation of respiratory problems (asthma and chronic obstructive pulmonary disease)

Drug interactions

Adrenaline
Severe
Textbook

Marked rise in BP.

Adrenaline should not be given to patients receiving β blockers.

Source: KDT 7e · p133

Sofosbuvir
Severe
Textbook

Severe bradycardia.

Extreme caution advised if amiodarone is co-administered with sofosbuvir and a beta blocker.

Source: Harrison 22e · unknown

Amiloride
Severe
Database

Hyperkalaemia more likely.

Source: KDT 7e

Aminophylline
Severe
Database

Drug interaction classified as: antagonism

Source: DDInter

Arformoterol
Severe
Database

Drug interaction classified as: antagonism

Source: DDInter

Ceritinib
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Clonidine
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Diltiazem
Severe
Database

Increased propensity for AV block, severe bradycardia, and decreased left ventricular function.

Avoid concurrent administration. The concurrent administration of diltiazem with a beta blocker is contraindicated.

Source: DDInter

Dyphylline
Severe
Database

Clinical effect not specified

Source: DDInter

Epinephrine
Severe
Database

Severe hypertension and cerebral hemorrhage.

The use of epinephrine generally is contraindicated in patients who are receiving nonselective β receptor antagonists.

Source: DDInter

Formoterol
Severe
Database

Clinical effect not specified

Source: DDInter

Indacaterol
Severe
Database

Clinical effect not specified

Source: DDInter

Related guidelines

Other Beta Blocker drugs

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Textbook-sourced·Sources: KD Tripathi 7e, Goodman & Gilman 14e, Katzung, BNF·Updated: 2026-05-10