Fuluson Plus

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Fuluson Plus

Method of action: Ophthalmologicals

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.

Overview of Fuluson Plus

Quick Facts

Property Description
Active Ingredient Fluorometholone, Tetryzoline (Tetrahydrozoline)
Form Ophthalmic Suspension (Eye Drops)
Pharmacological Class Ophthalmic Corticosteroid and Ophthalmic Decongestant Combination
General Purpose Management of ocular inflammation and redness
Origin Synthetic
Status Contains a prescription-only component

Fuluson Plus: Identity, Type, and Pharmaceutical Form

Fuluson Plus is defined as a fixed-dose combination product, supplied as a sterile ophthalmic suspension (eye drops) for topical ocular administration. This formulation unites two distinct synthetic active ingredients in a specialized aqueous vehicle, distinguishing it from monotherapies that address only a single aspect of ocular distress. This combination format is intended to simplify treatment by delivering both an anti-inflammatory and a decongestant agent simultaneously.

Composition and Pharmacological Class (Corticosteroid and Decongestant)

The medicine is characterized by its two core active ingredients: the synthetic corticosteroid Fluorometholone and the imidazoline derivative Tetryzoline (Tetrahydrozoline). Fluorometholone is the glucocorticoid component, primarily responsible for the anti-inflammatory effect. Tetryzoline is the alpha-adrenergic agonist, placing it within the classification of ophthalmic decongestants, which functions by producing reduction in ocular redness by constricting blood vessels. The medicine is recognized for its focused action of quickly easing visible redness.

General Purpose: Dual Action for Inflammation and Redness

The overall therapeutic purpose of this fixed-dose combination is the management of ocular conditions where simultaneous suppression of corticosteroid-responsive inflammation and the mitigation of conjunctival congestion are required. This dual-action design ensures the product’s utility in managing irritation and redness concurrently. The Fluorometholone component acts to improve patient-reported symptoms and reduce signs of ocular damage by controlling the underlying inflammation. The combination provides symptomatic relief by addressing both the cause (inflammation) and the symptom (redness) concurrently.

What side effects are possible with Fuluson Plus?

Possible Side Effects and Safety Information

Fuluson Plus (fluorometholone ophthalmic suspension) carries a safety profile centered primarily on ocular risks associated with its corticosteroid component, especially with prolonged use. The most frequent adverse reactions reported, in decreasing order of incidence, are elevation of intraocular pressure (IOP), which may lead to glaucoma with possible optic nerve damage, posterior subcapsular cataract formation, and delayed wound healing.

Documented Adverse Reactions

System-Organ Class Common/Reported Effects (Frequency Not Classified)
Eye Disorders Transient burning and stinging, feeling of having a foreign body, redness (hyperemia), blurred vision, increased tearing, eyelid swelling (edema) or drooping (ptosis), discharge.
Serious Ocular Effects (Long-Term) Glaucoma, cataracts, vision defects, thinning of the cornea/sclera (risk of perforation), secondary ocular infection (bacterial, viral, fungal).
Other Rare occurrences of systemic effects like hypercorticoidism (Cushing's syndrome), allergic reactions, taste perversion, rash.

Safety Restrictions and Monitoring

  • Contraindications: The use of Fuluson Plus is officially contraindicated in individuals with known hypersensitivity to its components, and in most viral diseases of the cornea and conjunctiva (including epithelial herpes simplex keratitis, vaccinia, and varicella), as well as in mycobacterial and fungal infections of the ocular structures. Corticosteroids may mask or enhance the activity of acute purulent infections.
  • Monitoring Requirement: Routine intraocular pressure (IOP) monitoring is required if the product is used for 10 days or longer to detect potential steroid-induced glaucoma. Great caution and frequent slit lamp microscopy are advised when treating patients with a history of ocular herpes simplex.
  • Population Note: Safety and effectiveness have not been established in pediatric patients below the age of 2 years.

Overdose and Emergency Response

Overdose and When to Seek Help

The official information regarding overdose of Fuluson Plus primarily addresses the systemic toxicity associated with the Tetryzoline component following accidental oral ingestion. Overdose is classified as a severe and potentially life-threatening event, particularly in young children.

Overdose Scope Regulatory-Documented Findings
Documented Manifestations Symptoms include altered mental state, somnolence, stupor, coma, miosis (pinpoint pupils), hypothermia, cyanosis, and nausea or vomiting.
Physiological Systems Affected Central Nervous System (CNS), Cardiovascular System, and Respiratory System are affected, resulting in bradycardia (slow heart rate), blood pressure changes, and respiratory depression.
Exposure-Related Factors Systemic overdose risk is specifically linked to accidental oral ingestion, not topical use. Ingestion of only 1 to 2 mL (a few drops) can lead to serious systemic effects.
Population-Specific Notes Severe adverse events are reported predominantly in young children, specifically those 5 years of age and younger.
Emergency-Response Treatment is symptomatic and supportive; no specific antidote is known. Hospital monitoring of vital signs is required.

When Immediate Medical Help is Required

Regulatory authorities explicitly state that immediate medical attention must be sought for any suspected accidental oral ingestion. Contact emergency services and the Poison Help Line immediately, as these events can be serious and life-threatening.

Therapeutic Uses of Fuluson Plus

What Fuluson Plus Treats: Main Uses and Benefits

Fuluson Plus may be used in managing conditions presenting with corticosteroid-responsive inflammation in the front portion of the eye. This therapeutic approach is relevant for easing symptom clusters that include noticeable swelling, irritation, itching, and pain—symptoms related to inflammatory or irritative states. Furthermore, the combination may assist with easing visible redness and congestion. The active ingredients are utilized to relieve eye irritation and redness. This combination contributes to easing the overall symptom load.

The medication is applicable within clinical settings that involve heightened symptoms, such as those involving non-infectious allergic conjunctivitis or irritative processes that follow specific ophthalmic procedures. It is often used during phases when symptoms become more noticeable, providing appropriate symptomatic assistance that helps patients cope more steadily with difficult episodes. This approach supports patients during periods when symptoms create noticeable interference with daily functioning.

“This medication is commonly used to help with groups of symptoms that may appear suddenly or intensify over time, providing support for overall patient comfort.”

Quick Fact: Symptomatic Focus
Inflammatory Symptoms: Swelling, pain, and irritation
Vascular Symptoms: Visible ocular redness (congestion)
Key Therapeutic Goal: Symptomatic relief and stability

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Who Can and Cannot Use Fuluson Plus?

Fuluson Plus has eligibility rules strictly defined by the official contraindications and precautions of its active components, the corticosteroid and the decongestant.

The medicine is contraindicated and must not be used by individuals with known hypersensitivity to any ingredient. Absolute non-eligibility applies to most ocular infections, including viral diseases (such as epithelial herpes simplex keratitis, vaccinia, and varicella), as well as mycobacterial or fungal diseases of the eye. Individuals with narrow-angle glaucoma are also ineligible.

Classification Regulatory Status
Contraindications Ocular viral, fungal, mycobacterial infections; Narrow-angle glaucoma.
Use with Caution Pre-existing glaucoma (requires IOP monitoring); Corneal/scleral thinning; Severe hypertension/hyperthyroidism.
Not Established Children under 2 years of age; Pregnancy/Lactation (conditional use).

Safety and effectiveness have not been established for children younger than two years of age. For adults, conditional use and caution are required if pre-existing conditions exist, such as glaucoma (which necessitates routine intraocular pressure monitoring), corneal thinning, or systemic conditions like severe hypertension and hyperthyroidism. The medicine is generally not recommended during pregnancy (Category C) or breastfeeding.

What should I know about interactions with other medicines?

Fuluson Plus Interactions with other medicines and products

This section outlines the officially documented interaction patterns for Fuluson Plus, based on regulatory labeling for its components, Fluorometholone and Tetryzoline.

Interacting Product Category Regulatory Classification & Constraint
Monoamine Oxidase Inhibitors (MAOIs) Contraindicated/Avoid Combination. Due to the sympathomimetic component (Tetryzoline), this combination may lead to a risk of systemic effects, such as hypertensive crises.
Strong CYP3A4 Inhibitors (e.g., Ritonavir, Cobicistat) Avoid/Use with Caution. These agents inhibit the metabolism of Fluorometholone, which can increase its systemic exposure and raise the risk of systemic corticosteroid side-effects. Monitoring for systemic effects is required if co-treatment is necessary.
Topical Non-Steroidal Anti-Inflammatory Drugs (Topical NSAIDs) Use with Caution. The simultaneous application of a topical steroid and a topical NSAID is documented to potentially increase the risk of corneal healing complications.
Other Ocular Medications Procedural Requirement. To ensure adequate drug contact time and prevent wash-out, other concomitant ocular medication must be administered at least 5 minutes prior to the instillation of Fuluson Plus.

Population-Specific Caution:

The documented risk of increased systemic corticosteroid exposure from co-treatment with CYP3A4 inhibitors is noted in regulatory documents as a particular concern in children and other predisposed patients.

Mechanism of Action

How Fuluson Plus Works

Fuluson Plus influences physiological processes through two mechanistically distinct, complementary actions.


Modulating Inflammatory Gene Expression

This domain covers the action of the Fluorometholone component, which targets the intracellular Glucocorticoid Receptor (GR). By acting as an agonist, the drug complex enters the nucleus and suppresses the transcription of genes responsible for creating pro-inflammatory mediators like cytokines and eicosanoids. This molecular suppression results in the primary physiological consequence of a decrease in extracellular fluid accumulation and modulation of the inflammatory cascade activity.


Inducing Local Vascular Smooth Muscle Contraction

This domain is mediated by the Tetryzoline component, which acts on alpha1-Adrenergic Receptors located on the blood vessel walls in the conjunctiva. Tetryzoline is a direct agonist, triggering a signaling cascade that mobilizes Ca^2+ ions and causes the smooth muscle to contract. This molecular action leads to the immediate physiological consequence of localized vasoconstriction (narrowing of vessels), influencing local blood flow and volume.


Coordination of Molecular Mechanisms

The combination involves the combined engagement of both mechanisms: the GR agonism initiates sustained genomic regulation of the inflammatory process, while the alpha1-adrenergic agonism offers a rapid adjustment of vessel tone. This coordination supports a simultaneous, multifaceted physiological response, engaging two separate yet related biological systems.

Dosage and Administration Information

Official Administration Instructions (Topical Ophthalmic)

Fuluson Plus (Fluorometholone) is an eye medicine available as a sterile ophthalmic suspension (drops) and an ophthalmic ointment, intended only for topical application into the conjunctival sac of the eye.

Dosage Form Standard Regimen Initial Intensive Regimen
Suspension (0.1% / 0.25%) Instill 1 to 2 drops into the affected eye(s) two to four times daily. The dosage may be increased to 1 or 2 drops every 2 or 4 hours during the initial 24 to 48 hours of therapy.
Ointment Apply a small ribbon (e.g., approximately 1.3 cm) into the affected eye(s) one to three times daily. May be applied every 4 hours during the initial 24 to 48 hours of therapy.

Preparation and Administration Specifics

  • Shaking: The ophthalmic suspension must be shaken well just before each use to ensure the contents are properly mixed.
  • Contact Lenses: Soft contact lenses must be removed prior to administration. Patients must wait at least 15 minutes after instilling the suspension before reinserting soft contact lenses.
  • Application: Care must be taken to avoid touching the bottle or tube tip to the eye, eyelid, or any other surface to prevent contamination. The eye should be closed gently for 1 to 2 minutes after instillation.

Course Management

  • Missed Dose: If a dose is missed, apply it as soon as it is remembered. Do not apply a double dose to make up for the missed application.
  • Discontinuation: The medicine should not be discontinued prematurely. In chronic conditions, the withdrawal of treatment must be carried out by gradually decreasing the frequency of applications (tapering).
  • Pediatric Use: Safety and effectiveness have not been established in children younger than 2 years of age. For children 2 years of age or younger, the length of therapy should be limited to the shortest possible time, preferably less than 5 days.

Recent Clinical Evidence

Research evidence / Overview of studies for Fuluson Plus

This overview summarizes the type of research and clinical studies that was studied for Fuluson Plus (Fluorometholone/Tetryzoline ophthalmic suspension). This information is based on official regulatory and scientific reviews and is intended to describe the study landscape without offering medical guidance or advice.


Evidence for Use in Allergic Conjunctivitis and Ocular Inflammation

Research concerning conditions characterized by non-infectious inflammation and congestion of the conjunctiva was studied using Fuluson Plus or its components. Studies for this purpose often take the form of Randomized Controlled Trials (RCTs) and comparative clinical trials, which are commonly used in research exploring how symptoms change over time.

These studies included adults and older children and research examined various outcomes related to physical discomfort, such as patient-reported scores for itching, irritation, and tearing. Researchers also monitored objective clinical sign scores, which describe measured changes in conjunctival redness and eyelid swelling over defined time intervals. The overall evidence base confirms that the anti-inflammatory component was evaluated in these conditions and contributes to the broader evidence landscape regarding how allergic eye symptoms are measured.


Evidence for Use Following Specific Ophthalmic Procedures

Research explored whether Fuluson Plus should be evaluated during periods where symptoms become more noticeable following specific types of eye surgery. Research exploring short-term symptom changes after certain procedures, such as pterygium excision, included Randomized Controlled Trials (RCTs) designed to monitor the immediate post-operative healing environment.

In these studies, research examined short-term outcomes monitoring physiological strain or stress, focusing on the degree of ocular redness (hyperemia) and the appearance of tissue swelling (edema). A key research limitation frame is that results apply only to the populations studied; evidence is often concentrated on a limited range of procedures, restricting the conclusions that can be drawn about all types of post-operative irritation.


What is Still Uncertain About Fuluson Plus Research

Scientific reviews indicate several areas where the evidence is limited or where greater clarity is still needed:

  • The sample sizes were modest in some combination-specific comparative trials, meaning the findings describe group patterns, not personal outcomes.
  • Follow-up durations were limited—often ending after 14 days to 6 weeks—meaning that long-term effects are not fully established regarding the medication’s use beyond these defined time intervals.
  • The evidence supporting the use of the anti-inflammatory component alone includes more studies than the research available for the specific dual-drug combination (Fluorometholone and Tetryzoline).

Key Studies & References Tetrahydrozoline Ophthalmic: MedlinePlus Drug Information (NIH)

Frequently Asked Questions (FAQ)

Common questions about Fuluson Plus (FAQ)


Q: How does Fuluson Plus differ from Fuluson (without the 'Plus')?

Fuluson Plus is officially defined as a fixed-dose combination product. According to regulatory documents, this medicine unites the corticosteroid Fluorometholone (the Fuluson component) with the ophthalmic decongestant Tetryzoline. This combination is recognized for providing dual action to address both underlying inflammation and associated redness concurrently, distinguishing it from single-component products.

Q: What happens if I stop using Fuluson Plus suddenly?

Official product information states that the medicine is not intended to be discontinued prematurely. For chronic conditions, regulatory documents state that the withdrawal of treatment must be carried out by gradually decreasing the frequency of applications, a process known as tapering. The required gradual reduction (tapering) is part of the established course management for chronic conditions.

Q: How long does it typically take to notice the effects of Fuluson Plus?

Official information about the mechanism of action indicates the product provides a rapid response due to one component, Tetryzoline, which quickly reduces vessel tone (redness). The other component, Fluorometholone, works through sustained genomic regulation to control inflammation. Clinical research has noted that subjective symptoms may improve more quickly with the combination product compared to using the anti-inflammatory component alone.

Q: Why might two people with the same condition be given different instructions for Fuluson Plus?

According to official administration instructions, two primary usage patterns are defined: a Standard Regimen and an Initial Intensive Regimen. These differences are intended to control the severity of the inflammatory condition. Furthermore, use is conditional on pre-existing health concerns listed in regulatory documents, such as glaucoma or hyperthyroidism, which require caution and monitoring.

Q: Is the medication safe to handle by people other than the patient?

Official documents advise that great care must be taken during application to avoid touching the bottle tip to any surface, which prevents contamination of the product. Regulatory warnings state that the use of the bottle by more than one person may spread ocular infection. This rule relates to ensuring the sterility and safe application of the medicine.

Q: How is the dose for Fuluson Plus usually determined?

Official administration instructions define the dosage based on the required intensity of treatment for the condition. The official documents list both a Standard Regimen and an Initial Intensive Regimen that may be used during the initial 24 to 48 hours of therapy. These regimens reflect the frequency needed to control the inflammatory condition.

Q: What is the expected window of time for Fuluson Plus to stay in the system?

The medicine is designed for topical ocular use, meaning it acts locally on the surface of the eye. Official labeling notes that systemic effects, where the drug enters the body’s wider system, are considered extremely uncommon. Therefore, the official patient information emphasizes the duration of the local application, which is often for a limited time frame, such as 14 days to 6 weeks in research studies.

Q: Is Fuluson Plus associated with any particular monitoring requirements (e.g., blood tests)?

According to official safety restrictions, routine intraocular pressure (IOP) monitoring is required if the product is used for 10 days or longer. This monitoring is a precaution to detect potential steroid-induced glaucoma, a documented risk of the corticosteroid component. Blood tests are not listed as a general required monitoring procedure in the official documents.

Q: Is there a maximum length of time Fuluson Plus is typically used?

Official safety information advises caution against prolonged use and requires IOP monitoring for use of 10 days or longer. Additionally, research studies often had limited follow-up durations, typically ending after 14 days to 6 weeks. This suggests that use outside of a limited time frame is highly conditional and requires strict professional oversight.

Q: Is Fuluson Plus known to cause weight gain?

Weight gain itself is not listed as a common effect in the official safety profile. However, regulatory documents do list rare occurrences of systemic effects like hypercorticoidism, which can be associated with weight changes. It is officially noted that systemic effects from this topical ophthalmic drug are considered extremely uncommon.

Q: Does taking Fuluson Plus affect my energy levels?

The official safety profile primarily lists ocular effects. Regulatory reviews of the decongestant component, Tetryzoline, have noted rare potential systemic effects such as fatigue or anxiety, which could affect energy perception. These effects are generally rare due to the localized topical application.

Q: Is it normal to feel slightly dizzy when first starting Fuluson Plus?

Dizziness is not listed as a common side effect in the official safety profile. However, regulatory reviews of the Tetryzoline component indicate that possible, rare systemic effects may include dizziness. These systemic effects are considered uncommon because the medicine is applied locally to the eye.

Q: Has Fuluson Plus been studied in children or adolescents?

Official safety information states that safety and effectiveness have not been established for children younger than 2 years of age. Research studies have included adults and older children, which implies adolescents were within the studied population. For children younger than two years, official documents indicate that the length of therapy is generally restricted to the shortest possible time.

Q: Are there any known interactions between Fuluson Plus and herbal supplements?

Official regulatory sources for the Tetryzoline component advise patients to inform their healthcare providers about all medicines, vitamins, and herbal products used. This is a general precaution to ensure complete awareness of concurrent usage, but the regulatory documents do not specify any particular contraindicating herbal interactions for this drug combination.

Q: Is Fuluson Plus a type of antibiotic or an anti-inflammatory drug?

Fuluson Plus is officially classified as an Ophthalmic Corticosteroid (an anti-inflammatory drug) and an Ophthalmic Decongestant combination. It is not an antibiotic medicine. In fact, official safety restrictions caution that its use is contraindicated in most bacterial, fungal, or viral infections of the eye.

Q: What does the FDA or EMA say about the safety profile of Fuluson Plus?

The safety profile, as summarized by regulatory bodies, is focused primarily on ocular risks associated with its corticosteroid component, especially with prolonged use. Warnings emphasize the potential for elevation of intraocular pressure (IOP), which is why monitoring is required after 10 days of use. Other documented risks include the formation of cataracts and secondary ocular infections.

Q: Are there restrictions on driving or operating machinery while using Fuluson Plus?

Official product information advises that the patient's vision may be temporarily blurred following dosing of the ophthalmic suspension. Due to this potential temporary visual disturbance, regulatory documents contain a caution regarding operating machinery or driving a motor vehicle immediately after use.

Q: Is it okay to crush or chew Fuluson Plus tablets?

The medicine is not available as an oral tablet or capsule. It is supplied only as a sterile ophthalmic suspension (eye drops) and an ophthalmic ointment. The official instructions specify that this medicine is intended only for topical application directly into the conjunctival sac of the eye.

Q: Does the time of day I use Fuluson Plus matter?

Official directions focus on the required frequency of application, such as applying the drops two to four times daily. The dosage schedule is structured to administer the dose over the course of the day. Specific instructions about morning versus night use are not defined in the general regulatory documents for this drug.

Q: How is Fuluson Plus generally eliminated from the body?

Due to its topical ocular application, the medicine is primarily intended to act locally, and systemic exposure is very low. While pharmacokinetic research has been performed on the drug components and their degradation products, a detailed, patient-friendly description of the elimination pathway (e.g., via urine or feces) is typically not included in routine patient regulatory summaries.

How should Fuluson Plus be stored and disposed of?

How to Store and Dispose of Fuluson Plus?

The official storage and handling instructions for Fuluson Plus, an ophthalmic suspension, are designed to ensure product stability and safety, as stipulated in regulatory labeling.

Official Storage and Handling

Requirement Type Official Instructions
Temperature and Light Store at the temperature defined on the label (typically below 30 C or between 2 C and 25 C); protect from light and do not freeze.
Container and Integrity Shake well before each use and keep the bottle tightly closed when not in use. Avoid touching the dropper tip to any surface.
In-Use Stability The contents must be discarded within 28 to 30 days after the bottle is first opened, even if medication remains.

Disposal and Safety

Fuluson Plus must be stored strictly out of the sight and reach of children. Unused or expired medicine must be disposed of in accordance with local regulatory requirements for pharmaceutical waste.

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

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