TheraRadar
Data updated: May 26, 2026

TIMOLOL MALEATE

Genetically Validated
Cardiovascular Approved 1989-04-13

TIMOLOL MALEATE is indicated for the treatment of Hypertension; Myocardial Infarction; Migraine.

Source: FDA Label • QUANTUM PHARMICS

How TIMOLOL MALEATE Works

Timolol maleate is a non-selective beta-adrenergic receptor blocking agent. It competes with adrenergic neurotransmitters, such as catecholamines, for binding at both $\beta_1$-receptors (located primarily in cardiac muscle) and $\beta_2$-receptors (located in bronchial and vascular smooth muscle). It lacks significant intrinsic sympathomimetic, direct myocardial depressant, or membrane-stabilizing (local anesthetic) activity. The mechanism of its antihypertensive effect involves a reduction in cardiac output, decrease in sympathetic outflow from the central nervous system, and inhibition of renin release by the kidneys. In post-myocardial infarction management, timolol reduces myocardial oxygen demand by decreasing heart rate and contractility. The exact mechanism for migraine prophylaxis has not been fully established but is thought to involve the modulation of cerebral vascular tone or inhibition of beta-receptor-mediated vasodilation.

28
Indications
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Phase 3 Trials
1
Priority Reviews
37
Years on Market

TIMOLOL MALEATE Approval History

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Original
New Indication
New Form
Label Update
295 FDA actions from 1989 to 2025 · 1 indication expansions
May 2025 SUPPL
Label · Labeling
May 2025 SUPPL
Label · Labeling
May 2025 SUPPL
Mfg · Manufacturing (CMC)

What TIMOLOL MALEATE Treats

3 indications

TIMOLOL MALEATE is approved for 3 conditions since its original approval in 1989. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Hypertension
  • Myocardial Infarction
  • Migraine
Source: FDA Label

TIMOLOL MALEATE Target & Pathway

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Shared indications:
ATENOLOL
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NOSTRUM LABS
Shared indications:
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Clinical Trial Registry

5 trials
Trial Sponsor ID Phase Status Title
NCT04830397 QC-201 Ph 2 completed Study to Evaluate QLS-101 Compared to Timolol Maleate Eye Drops in Subjects With High Eye Pressure (Glaucoma or Ocular Hypertension).
NCT03323164 results posted 17-636E Ph 4 completed Peripapillary Blood Flow After Use of Anti-glaucoma Medications: An OCT Angiography Study
NCT01707381 Constellation results posted 803 Ph 2 completed BOL-303259-X With Timolol 0.5% in Subjects With Open-Angle Glaucoma or Ocular Hypertension
NCT01607671 NAION-001 Ph 1 withdrawn Treatment Study for Ischemic Optic Neuropathy With Opthalmic Timolol Maleate 0.5%
NCT00879099 73654 Eudra CT 2008-007324-26 Ph 1 completed Interaction Study of Timolol Eye Drops and Paroxetine Capsules
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

TIMOLOL MALEATE FDA Label Details

Indications & Usage

FDA Label (PDF)

TIMOLOL MALEATE is indicated for the treatment of Hypertension; Myocardial Infarction; Migraine.

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TIMOPTIC IN OCUDOSE

Full clinical data, patents, trials, and competitive landscape for timolol maleate.

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.