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Lacoma-T

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Lacoma-T

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Treatment option:

Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

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Overview of Lacoma-T

Quick Facts

Property Description
Active Ingredients Latanoprost, Timolol Maleate
Form Fixed-dose ophthalmic solution (Sterile eye drops)
Pharmacological Class Ocular Hypotensive Agent (Prostaglandin Analog / Beta-Blocker)
Regulatory Status Prescription-Only Medicine (Rx)
Origin Synthetic

Lacoma-T: Identity and Pharmacological Classification

Lacoma-T is a prescription-only medicine (Rx) delivered as a sterile eye drop solution for topical ocular use. The medicine is a synthetic, fixed-dose combination ophthalmic solution containing Latanoprost and Timolol. It is classified as an ocular hypotensive agent, designed for the management of elevated fluid pressure inside the eye. The unique formulation integrates two distinct pharmacological classes: a prostaglandin analog and a beta-adrenergic receptor blocker. This dual-class integration is recognized for significantly lowering intraocular pressure compared to using a single agent, thereby supporting the primary therapeutic objective.


Composition and General Therapeutic Purpose

The solution's active pharmaceutical ingredients (APIs) are Latanoprost and Timolol (as Timolol Maleate). Latanoprost is an inactive prodrug that requires activation within the eye, while Timolol is a direct-acting non-selective antagonist. The general therapeutic purpose of this pairing is to achieve a more robust and sustained reduction of intraocular pressure (IOP) than either monotherapy alone can provide. The combination of a prostaglandin analog and a beta-blocker is standard practice to maximize therapeutic efficacy. This fixed combination is used when patients require intensified pressure management, providing a complementary approach by addressing pressure from two biological angles: by enhancing fluid drainage and by decreasing fluid production.

Regulatory References

  1. Latanoprost and Timolol Ophthalmic: MedlinePlus Drug Information
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What side effects are possible with Lacoma-T?

Possible side effects and safety information

The official safety profile for this fixed-dose combination details adverse reactions categorized by frequency, based on clinical trial and post-marketing data. The most frequently documented reaction, classified as Very Common, is increased iris pigmentation, which is a gradual process and is often considered a permanent change in eye color. Common reactions primarily involve the Eye Disorders system and include conjunctival hyperemia (eye redness), ocular irritation (stinging, burning), and blepharitis (eyelid inflammation). Less frequent, or Uncommon, systemic effects listed include headache, dizziness, and skin rash.


The systemic absorption of the Timolol component necessitates strict safety limitations. The medicine is contraindicated in individuals with severe respiratory diseases, such as bronchial asthma or severe Chronic Obstructive Pulmonary Disease (COPD). It is also restricted for use in patients with certain Cardiac Disorders, including overt cardiac failure, sinus bradycardia, or second/third-degree atrioventricular block.


Serious adverse reactions documented in regulatory sources include the potential for severe bradycardia or heart block, asthma exacerbation, and serious ocular events such as Macular Edema or reactivation of Herpes Simplex Keratitis. A specific constraint is noted regarding the preservative benzalkonium chloride, which is documented to cause ocular irritation and discolor soft contact lenses.

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Overdose and Emergency Response

Lacoma-T Overdose and When to Seek Help

The official overdose profile for Lacoma-T is defined by the risks associated with the systemic absorption of its beta-blocker component, Timolol, as stated in regulatory documents.

Overdose Scope Official Regulatory Information
Documented Manifestations Overdose symptoms primarily reflect systemic beta-blockade. These include bradycardia (slow heart rate), hypotension (low blood pressure), and potentially severe bronchospasm. Topical overdose may result in conjunctival hyperemia and ocular irritation.
Severe Outcomes Documented severe and life-threatening outcomes include acute cardiac failure, cardiogenic shock, and cardiac arrest associated with high systemic exposure.
Emergency Action Seek immediate medical attention or contact emergency services if accidental oral ingestion occurs or if symptoms of severe systemic toxicity, such as trouble breathing or an irregular heartbeat, are observed.

Supportive Measures and Antidote Status

The treatment for systemic overdose is strictly symptomatic and supportive, as no specific antidote is known for Timolol overdose. Procedures documented in official prescribing information may include gastric lavage for ingestion and pharmacologic interventions, such as the use of atropine or pressor agents, to manage severe cardiovascular effects. Overdose requires close hospital monitoring due to the potential for severe effects. Of specific note, neonates and infants are at documented risk for severe systemic effects, including apnea, following systemic exposure.

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Therapeutic Uses of Lacoma-T

What Lacoma-T Treats: Main Uses and Benefits

Lacoma-T is used to help manage conditions involving symptoms related to systemic imbalance, such as elevated pressure within the eye. The medicine is commonly applied in scenarios where additional management of discomfort is required, assisting with the relief of symptoms related to heightened physiological activity.

The medicine is commonly used across conditions presenting with acute episodes, such as open-angle glaucoma and ocular hypertension. It is considered relevant in contexts involving heightened systemic burden for patients requiring additional symptomatic assistance to manage elevated intraocular pressure.

It is often used when symptoms intensify, providing support during episodes of heightened discomfort and may help patients cope more steadily with symptom fluctuations. This combination treatment is considered relevant across domains where short-term symptom management is appropriate and supports the patient in maintaining a sense of stability when symptoms become more noticeable.

Quick Fact: Support for Symptoms Related to Physical Discomfort

Regulatory References

  1. healthdirect Australia overview
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Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Lacoma-T

Lacoma-T is an officially labeled treatment for use in adults (including the elderly) diagnosed with open-angle glaucoma or ocular hypertension. Regulatory authorities have established specific conditions under which this medicine must not be used.


Classification Population or Condition
Absolute Contraindication Patients with bronchial asthma, a history of asthma, or severe Chronic Obstructive Pulmonary Disease (COPD).
Absolute Contraindication Individuals with specific cardiac conditions, including sinus bradycardia, overt cardiac failure, or certain second- or third-degree atrioventricular blocks.
Absolute Contraindication Known hypersensitivity to the active ingredients (Latanoprost, Timolol) or any component of the formulation.
Not Recommended/Use Not Established Children and adolescents under 18 years of age.
Not Recommended/Restricted Pregnant or breastfeeding women.
Conditional Use Patients with mild/moderate COPD, labile diabetes, or a history of herpetic keratitis require specific caution as per labeling.

The overall regulatory profile excludes use in patients with high systemic risk due to the beta-blocker component (Timolol) and is generally restricted to the adult population where safety and efficacy have been established.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

Lacoma-T's official interaction profile is structured around two primary concerns: additive systemic effects and restrictions on co-administration with other ophthalmic agents.

The co-administration of other prostaglandin analogs or topical beta-adrenergic blocking agents is not recommended by regulatory authorities. The combination with prostaglandins risks paradoxical intraocular pressure elevation, while co-use with a second topical beta-blocker carries the risk of additive systemic effects.

Several pharmacodynamic interactions are documented with oral medications. Concurrent use with oral beta-adrenergic blocking agents, calcium channel blockers, antiarrhythmics, and Digitalis glycosides may result in significant additive effects, which can lead to systemic hypotension or marked bradycardia. Similarly, catecholamine-depleting drugs are noted for the risk of hypotension and bradycardia.

A pharmacokinetic interaction is formally documented with CYP2D6 inhibitors, including substances such as quinidine, fluoxetine, and paroxetine. These can cause potentiated systemic beta blockade by reducing the clearance of the Timolol component. A mandatory timing-based restriction requires that all other topical ophthalmic medicines be administered with an interval of at least five minutes to prevent physical interference or precipitation, such as that seen with thiomersal.

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Mechanism of Action

Lacoma-T is an inhibitor of the cytokine RANKL (Receptor Activator of Nuclear factor Kappa-B Ligand). This biological target is a critical mediator in the formation and activity of osteoclasts, the cells responsible for bone breakdown. Lacoma-T exerts its action by binding competitively to the active site on the circulating RANKL molecule. This molecular interaction physically prevents the subsequent binding of RANKL to its receptor, RANK, located on the surface of pre-osteoclasts. This blockade disrupts the downstream signaling cascade necessary for the differentiation, maturation, and survival of osteoclasts, a cellular process termed osteoclastogenesis. The physiological consequence of this mechanistic inhibition is a reduction in the overall rate of bone resorption at the systemic level.

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Dosage and Administration Information

Lacoma-T is a fixed-dose ophthalmic solution strictly for topical ocular use, administered as one drop in the affected eye(s). The entire usage protocol is designed around a precise, once-daily schedule and specific procedural constraints. The medicine is intended for long-term use.


Administration Scope

Instruction General Guideline
Dosing Schedule One drop in the affected eye(s) once daily. The dosage must not exceed one drop daily.
Frequency Constraint The regimen is strictly Once Daily because more frequent application has been shown to decrease the intraocular pressure lowering effect.
Missed Dose Rule If a dose is missed, treatment must continue with the next scheduled dose; a double dose must not be administered to compensate.
Age-Group Rules The standard regimen is for adults (including the elderly). Use in the pediatric population is not established.

Special Procedural Conditions

If the medicine is used concurrently with other topical eye products, a waiting period of at least five (5) minutes must separate each administration. Patients using contact lenses must remove lenses before instillation and may only reinsert them after fifteen (15) minutes. Furthermore, immediately following instillation, using nasolacrimal occlusion (applying gentle pressure to the tear duct) or gently closing the eyelids for two minutes is the technique utilized to reduce the medicine's systemic absorption.

This adherence to a specific procedural structure defines the correct administration pattern.

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Recent Clinical Evidence

Lacoma-T: Recent Clinical Evidence

Evidence for Use in Managing Elevated Intraocular Pressure

Research examining the fixed combination of latanoprost and timolol was studied in the context of elevated intraocular pressure (IOP), associated with Open-Angle Glaucoma and Ocular Hypertension. The primary research base consists of Randomized Controlled Trials (RCTs). These short-to-intermediate-term studies tracked the absolute and relative change in IOP from the start of the study. The RCTs included Adult and Older Adult patients whose IOP was observed to be inadequately controlled by using a single-ingredient eye drop. Findings described IOP measurement patterns observed in these studies, comparing the fixed combination against its single-ingredient components.


Comparative Study Landscape and Long-Term Research

Scientific literature examined the fixed combination compared to other treatment scenarios, including the unfixed (concomitant) administration of the components. Comparative evidence was associated with mixed findings, and data describe patterns related to the IOP biomarker but do not uniformly suggest a definitive difference in measurement patterns in all comparisons. While highly controlled RCTs generally have follow-up durations limited to six months or less, longer-term evidence is still emerging from prospective observational studies. These real-world studies contribute to the broader evidence landscape, tracking how IOP measurement was monitored over long-term use. Long-term outcomes are not well characterized by controlled trials, and existing research provides insight into short-term changes.


Key Limitations and Areas of Scientific Uncertainty

The primary research was conducted on the general adult population. Data for certain groups remain insufficient; for instance, there is limited information for long-term outcomes in children or pregnant populations. Scientific assessments highlight areas where certainty remains low. Follow-up durations were limited in many key comparative trials, meaning that long-term outcomes are not well characterized under the most rigorous study conditions. Furthermore, evidence quality varies across studies when directly comparing the fixed combination against the separate administration of its two active ingredients. Findings describe group patterns, and research does not determine whether an individual will respond similarly.

Key Studies & References Latanoprost and timolol ophthalmic solution (Product Monograph)

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Frequently Asked Questions (FAQ)

Common questions about Lacoma-T (FAQ)


Q: How should I store Lacoma-T?

Official product labeling provides specific instructions on how to properly store the tablets or capsules to maintain their quality and effectiveness. In general, this involves storage at a controlled room temperature, away from excessive moisture and heat. Patients are typically advised to check the instructions provided with their dispensed medicine for the most accurate storage conditions.


Q: Can I drink alcohol while taking this medicine?

Regulatory information indicates that combining this medicine with alcohol, as well as substances like barbiturates or narcotics, may potentially increase the risk of orthostatic hypotension. This refers to a drop in blood pressure that can occur when moving quickly from a sitting or lying position to standing, which may cause dizziness or fainting. Awareness of this potential interaction is advised when considering alcohol consumption.


Q: Does this medication make you feel sleepy?

Official adverse reaction data lists drowsiness as a potential effect, particularly when related to changes in fluid or electrolyte levels, such as low potassium (hypokalemia). Nervous system effects like dizziness, vertigo, and restlessness are also reported. If these effects occur, activities requiring mental alertness, such as driving, should be approached with caution, as this information is based on the drug's regulatory profile.


Q: Can children 2 years old use it?

For combination products containing this medicine, official regulatory labeling may state they are not recommended for pediatric patients below a certain age (e.g., six years). For the medicine alone, authorized dosing for children is based on body weight. Determining the appropriateness of this medicine for a child is a medical decision best made by a healthcare provider, considering the specific clinical situation and authorized indications.

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How should Lacoma-T be stored and disposed of?

How to Store and Dispose of Lacoma-T Eye Drops

The storage and disposal of Lacoma-T (latanoprost/timolol) ophthalmic solution must strictly adhere to regulatory labeling requirements to maintain stability and sterility.

Storage Conditions

Condition Requirement
Unopened Bottle Store in a refrigerator at 2 C to 8 C (36 F to 46 F). Do not freeze.
Opened (In-Use) Store at controlled room temperature, not above 25 C (77 F).
Container & Protection Keep the bottle tightly closed and store in the original outer carton to protect the solution from light.
Shelf-Life Any unused product must be discarded four weeks (28 days) after the container is first opened.
Child Safety The medicine must be kept out of the sight and reach of children.

Disposal

Expired or unused Lacoma-T must not be thrown into household trash or poured down a drain. Disposal must be conducted in accordance with local pharmaceutical waste regulations, typically by returning the medicine to a pharmacist or designated collection point.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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