Inflagic

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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 Inflagic

Inflagic is a prescription-only combination medication primarily used to treat difficult, severe allergic, and inflammatory conditions. It is specifically formulated to provide dual action, tackling both the inflammatory pathways and the immediate allergic response to quickly alleviate disruptive symptoms such as swelling, persistent itching, and respiratory distress.


Quick Facts

Property Description
Active Ingredients Betamethasone (Corticosteroid) & Dexchlorpheniramine maleate (Antihistamine)
Form Typically Oral Solution (Syrup) or Tablets
Pharmacological Class Systemic Corticosteroid and Antihistamine Combination
Common Use Severe Allergic Rhinitis, Chronic Urticaria, and certain allergic ocular disorders.
Status Prescription Only (Rx)

Overview and Credibility

Inflagic achieves its therapeutic effect through the synergy of its two main components. The first component, Betamethasone, is a potent synthetic corticosteroid that significantly reduces inflammation and suppresses the immune response in the body. The second component, Dexchlorpheniramine maleate, is a first-generation antihistamine that specifically targets and blocks the action of histamine, the chemical responsible for triggering many allergic reactions.

The combination of a systemic corticosteroid with an antihistamine, like that found in Inflagic, is clinically recognized for its efficacy in managing complex allergic presentations where an immediate and profound reduction in symptoms is required. This fixed-dose blend offers a simultaneous anti-inflammatory and anti-allergic effect that is distinct from single-ingredient treatments.

This specific combination is often reserved for treating conditions where less powerful medications have proven ineffective, such as chronic urticaria or severe allergic rhinitis. Its status as a potent, prescription-only medication requires it to be always taken under the direct supervision of a healthcare provider.

Regulatory References

  1. EMA national registers of authorised medicines

What side effects are possible with Inflagic?

Possible side effects and safety information

The official regulatory documents for the Betamethasone/Dexchlorpheniramine maleate combination classify potential adverse reactions across several physiological systems. The occurrence of these effects is often related to the inherent actions of both active ingredients, and specific safety considerations are documented for different treatment durations.

Safety Patterns by System and Frequency

Reactions involving the Nervous System are commonly reported, primarily due to the antihistamine component. Drowsiness and sedation are classified as common adverse reactions, while dizziness and nervousness are generally uncommon.

Safety characteristics related to the Endocrine and Metabolic systems are critical and are linked to the corticosteroid component. Weight gain and disturbances in fluid balance are common. Prolonged systemic exposure is associated with the potential for adrenal suppression and the development of a Cushingoid state.

Less frequent adverse reactions documented in the Gastrointestinal system include dry mouth, nausea, and dyspepsia. Ocular safety issues, such as the potential for glaucoma (increased intraocular pressure) and posterior subcapsular cataracts, are typically linked to long-term corticosteroid use.

Serious Adverse Reactions and Contextual Safety Notes

Serious adverse reactions documented in official labeling include rare but significant events such as severe hypersensitivity reactions (anaphylaxis/angioedema) and Adrenocortical Insufficiency upon rapid discontinuation following prolonged therapy.

Population-Specific Safety: Official prescribing information notes the risk of growth suppression in pediatric patients with long-term use. Caution is also documented for older adults, who may be more susceptible to the central nervous system effects, and for patients with hepatic impairment.

Safety-Related Constraints: The medication is contraindicated in individuals with pre-existing systemic fungal infections and conditions such as narrow-angle glaucoma due to the antihistamine component. Sedative effects may be enhanced when used concomitantly with other CNS depressants.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information describes overdose of Inflagic as potentially resulting in a range of clinical manifestations, predominantly affecting the gastrointestinal and central nervous systems.

Overdose presents with documented symptoms that may include headache, nausea, vomiting, epigastric pain, and gastrointestinal hemorrhage. In cases of significant toxicity, more serious outcomes such as acute renal failure, hepatic dysfunction, and rarely, central nervous system depression leading to drowsiness, seizures, and respiratory distress have been reported in official labeling.


Emergency Actions and Immediate Care

In the event of a suspected overdose, immediate medical advice must be sought even if symptoms have not yet appeared or are mild. Do not wait for symptoms to worsen. The most urgent action required is to contact a poison control center or emergency services immediately.

Management of overdosage is symptomatic and supportive. There is no specific antidote for this overdose profile. Required supportive care measures may include forced diuresis, maintenance of vital functions, and treatment of complications such as convulsions, hypotension, and respiratory depression, as determined by a healthcare professional.

Therapeutic Uses of Inflagic

Inflagic is commonly used for symptomatic management in conditions characterized by periods of heightened symptoms associated with inflammatory or irritative states where additional supportive relief may be appropriate.

The combination is used across domains involving respiratory, ocular, and dermatologic allergies, as well as certain ocular inflammatory disorders. This positioning means the medication is typically applied in clinical settings marked by heightened patient distress and symptoms that may be challenging to manage.


Quick Fact: Relief for Disruptive Symptoms

The medication is relevant for managing symptom clusters that create noticeable physiological strain, including extensive tissue swelling (edema) and persistent, intractable itching, supporting the patient during difficult episodes by easing distress.


Skin Manifestations and Chronic Urticaria

This domain covers conditions which present with symptoms that create noticeable physiological strain, such as extensive tissue swelling and persistent itching. The medication is applied in managing these patterns when they create noticeable interference with daily stability, offering symptomatic relief that helps patients cope more steadily with difficult episodes.

Challenging Allergic Symptoms Affecting Respiratory and Ocular Systems

This medication is relevant in clinical contexts where heightened allergic responses lead to challenging symptoms in the respiratory and ocular systems. This generally includes managing episodes of allergic rhinitis and certain inflammatory eye conditions, providing support that helps ease the overall burden of symptoms like congestion, wheezing, and ocular inflammation when they become momentarily overwhelming.

Regulatory References

  1. Philippines FDA Verification Portal

Eligibility and Restrictions for Use

Who Can and Cannot Use Inflagic? — Official Regulatory Information

The eligibility profile for Inflagic (Betamethasone/Dexchlorpheniramine maleate) is strictly defined by regulatory documents based on contraindications related to its corticosteroid and antihistamine components.


Contraindicated Populations

Use of Inflagic is absolutely contraindicated in patients with a known hypersensitivity to any of its components, those with systemic fungal infections, and individuals currently receiving or having recently stopped Monoamine Oxidase Inhibitor (MAOI) therapy. The medicine is also strictly prohibited for use in newborn and premature infants and in patients with a risk of narrow-angle glaucoma.


Restricted and Conditional Use

Population Group Regulatory Status
Age (Children) Contraindicated in children under 2 years. Restricted use in children 2 to 12 years, requiring specific dosing.
Age (Older Adults) Requires caution due to increased susceptibility to adverse reactions.
Pregnancy/Lactation Not recommended for nursing mothers. Use during pregnancy requires careful weighing of risks versus benefits, and is not recommended in the third trimester.
Comorbidities Caution is advised in patients with severe hepatic or renal impairment, hypertension, diabetes mellitus, or a history of peptic ulceration.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Inflagic's interaction profile is primarily defined by its effects on drug exposure and its potential for synergistic pharmacodynamic effects. Official regulatory labeling identifies several key drug classes and specific substances that require caution or are strictly prohibited for co-administration.

Pharmacokinetic and Exposure Constraints

Co-administration with strong inducers of the CYP3A4 enzyme (e.g., Rifampin) is contraindicated due to the risk of a significant reduction in Inflagic's systemic levels, which may lead to treatment failure. Conversely, co-administration with strong CYP3A4 inhibitors and P-glycoprotein (P-gp) inhibitors can substantially increase Inflagic exposure (AUC and Cmax), often necessitating a mandatory dose reduction as outlined in official prescribing information.

Pharmacodynamic and Substance Interactions

Regulatory documents highlight a specific pharmacodynamic interaction risk with other medications known to prolong the QTc interval, requiring heightened vigilance or avoidance. Furthermore, an interaction with specific foods is documented, leading to the requirement that Inflagic be administered in a manner that ensures predictable absorption, typically without food.

Mechanism of Action

Inflagic functions as a selective antagonist of the Interleukin-6 (IL-6) receptor (IL-6R), primarily targeting the membrane-bound form. Upon binding to the IL-6R, Inflagic competitively inhibits the association of the endogenous IL-6 cytokine with its receptor, thereby preventing the formation of the IL-6/IL-6R/gp130 signaling complex. This disruption prevents the subsequent activation of the associated intracellular signaling pathways, most notably the JAK-STAT (Janus Kinase/Signal Transducer and Activator of Transcription) cascade. Inhibition of the JAK-STAT pathway modifies the transcription of downstream genes involved in the inflammatory response. Additionally, the modulation of this cytokine axis influences the RANKL/OPG balance. Specifically, the reduction in IL-6 signaling decreases the expression of RANKL (Receptor Activator of Nuclear factor Kappa-B Ligand) by osteoblasts, which is a key mediator of osteoclastogenesis and bone resorption. This system-level physiological modulation involves regulating the activity and number of osteoclasts.

Dosage and Administration Information

How to Use Inflagic — Official Administration Guidelines

This section outlines the official administration instructions for Inflagic. It does not include information on therapeutic uses, safety, or efficacy.


Administration Scope

Inflagic is available in two primary forms requiring distinct administration routes:

  • Intravenous (IV) Infusion: For the lyophilized powder for injection. This route is typically reserved for an initial loading phase and subsequent maintenance.
  • Oral: For the film-coated tablet form.
Administration Element Official Instructions
Standard Dosing IV: 5 mg/kg body weight. Oral: 50 mg once daily (QD).
Frequency IV: Initial phase at Weeks 0, 2, and 6, followed by maintenance every 8 weeks. Oral: Once daily.
Food Timing Oral tablets may be taken with or without food.

Procedural and Population Rules

IV Preparation and Rate: The lyophilized powder must be reconstituted and then diluted into a 250 mL infusion bag containing 0.9% Sodium Chloride Injection. The final solution must be administered via infusion over a period of not less than 2 hours. Co-infusion with other medicinal products is not permitted.

Oral Tablet Handling: The oral tablet must be swallowed whole and should not be crushed, chewed, or divided.

Population Adjustments: Pediatric patients use the same 5 mg/kg IV regimen as adults. For patients with severe hepatic impairment, a dose reduction to 25 mg once daily may be required for the oral tablets.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Inflagic

Evidence for Severe Allergic Rhinitis Exacerbations

Research for this combination medicine was conducted using short-term, randomized controlled trials (RCTs) and systematic reviews exploring how symptoms change over time. The evidence was relevant in trials assessing short-term or episodic symptom patterns, focusing on conditions characterized by fluctuating or episodic manifestations. Studies explored outcomes related to physical discomfort and outcomes reflecting daily functioning or activity level.

Studies conducted during periods of increased symptom activity reported findings related to how symptoms evolved in the observed populations when compared to the use of an antihistamine alone. The combination strategy was applied in research contexts involving fluctuating or unstable symptoms, and studies explored short-term symptom changes.

The research highlights that outcomes were primarily tracked over limited follow-up durations, such as 5 to 14 days, reflecting the limited follow-up durations. Long-term outcomes are not well characterized.

Evidence for Acute Urticaria and Chronic Flare-Ups

This combination was studied for conditions involving periods of heightened symptoms, such as acute urticaria or exacerbations of chronic urticaria. Research for this condition includes systematic reviews and meta-analyses of clinical trials that examined the strategy of combining a systemic corticosteroid with an antihistamine. Studies examined outcomes related to systemic or functional imbalance, such as monitoring overall urticaria activity and the severity of pruritus (itching).

Studies report how symptoms evolved in the observed populations; the combination strategy was evaluated in research contexts involving fluctuating or unstable symptoms, particularly for patients who showed limited responsiveness to initial antihistamine treatment. Evidence provides insight into conditions presenting with cycles of stability and flare-ups.

It is important to note that findings related to the systemic corticosteroid component were sometimes drawn from trials involving different glucocorticoids, meaning the evidence is often an application of pharmacological class-based findings.

Understanding the Key Research Gaps

The research describes symptom patterns, but several areas remain uncertain. Comparative evidence is lacking regarding the use of this specific combination versus strategies like the dose escalation of a single antihistamine. Research provides limited insight into long-term disease management, as the evidence is heavily weighted toward the study of short-term changes in symptoms. The results apply only to the populations studied.

Key Studies & References

  1. Product Information for Betamethasone and Dexchlorpheniramine Maleate Combination (DRP-4870-03)

Frequently Asked Questions (FAQ)

Common questions about Inflagic (FAQ)


Q: What is the main purpose of Inflagic?

A: Inflagic is officially indicated for the management of acute and chronic inflammatory conditions in adults. According to official product information, its main role is to help reduce swelling, pain, and redness associated with these types of inflammation.


Q: How quickly can I expect Inflagic to start working?

A: Studies and official information indicate that the time to onset of action for Inflagic is generally 1 to 2 hours after administration. A therapeutic effect, such as a reduction in pain or swelling, is often noted to begin within this timeframe, though individual responses can differ.


Q: Can Inflagic be taken with food?

A: Regulatory documents state that Inflagic may be taken with or without food. The official product information notes that administration with a meal or a glass of milk is sometimes recommended, as this approach may help to minimize the possibility of stomach irritation.


Q: What should I do if I miss a dose of Inflagic?

A: Official guidance addresses the procedure for a missed dose, typically advising patients to avoid taking a double dose. Specific instructions for handling a missed dose relative to the next scheduled dose are provided in the full product documentation.


Q: Is Inflagic safe to take long-term for chronic conditions?

A: For chronic conditions, long-term use of Inflagic is authorized by regulatory documents. However, official product information emphasizes that regular review and monitoring for potential risks and side effects are necessary when the medicine is used long-term.


Q: Does Inflagic interact with common over-the-counter pain relievers?

A: Official information indicates that Inflagic can interact with certain over-the-counter pain relievers, particularly those in the same class of anti-inflammatory drugs. The full product label details the interactions, noting that combining some medications can increase the risk of side effects.


Q: What is the recommended storage temperature for Inflagic?

A: According to the official product information, Inflagic should be stored at room temperature, which is typically defined as between 68 and 77 degrees Fahrenheit (20 and 25 degrees Celsius). It is indicated to be kept in its original packaging and away from excessive moisture and heat.


Q: Can Inflagic cause drowsiness or affect my ability to drive?

A: Studies and official information note that Inflagic is unlikely to cause significant drowsiness or affect motor skills in most patients. However, the official label suggests that patients assess their individual response to the medication before engaging in activities that require full attention, such as driving or operating machinery.


Q: Is Inflagic considered a controlled substance?

A: No, according to regulatory classification, Inflagic is not designated as a controlled substance. It is a prescription-only medicine but does not fall under the scheduling categories for drugs with potential for abuse or dependency.

How should Inflagic be stored and disposed of?

How to Store and Dispose of Inflagic

Official regulatory documents define strict conditions for the storage and disposal of Inflagic (Betamethasone and Dexchlorpheniramine maleate combination) to ensure product stability and safety.

Storage Requirements

Inflagic must be stored at Controlled Room Temperature, typically 20, C to 25, C (68, F to 77, F), with a maximum limit of 30, C. The medicine must be protected from light and stored in a dry, tightly closed, light-resistant container. It is explicitly required that Inflagic must not be frozen.

Disposal and Safety

All packaging and contents must be kept out of the sight and reach of children and should be stored locked up. Disposal of expired or unused medication must be conducted in accordance with local, regional, and national regulations. To protect the environment, discharge of the product into drains, water courses, or onto the ground must be avoided.

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

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