Corbinal

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Corbinal

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Corbinal

Property Description
Active ingredient Terbinafine Hydrochloride
Form Oral tablet, topical cream/solution
Pharmacological class Antifungal (Allylamine)
Common use Systemic or localized treatment of fungal infections
Origin Synthetic

What is Corbinal and What is its Primary Classification?

Corbinal is a medicine defined by its active component, Terbinafine Hydrochloride, which is officially classified as an Antifungal agent. This substance is entirely synthetic and belongs to the distinct pharmacological class of allylamine antifungals. This class is characterized by its specific mechanism against fungal pathogens.

The identity of Corbinal as an allylamine antifungal is key to understanding its therapeutic approach. The drug functions as a single-active ingredient product, focusing the entire therapeutic effect on the action of Terbinafine Hydrochloride. This compound is utilized for its effectiveness against the dermatophytes responsible for infections, establishing its role in managing these conditions.

The Composition and Available Forms of Terbinafine

The composition of Corbinal is centered on the active ingredient Terbinafine Hydrochloride, which is prepared in distinct forms for systemic or localized application. The medication is available primarily as an oral tablet for systemic absorption and in various topical preparations, including cream or solution. The choice of pharmaceutical preparation dictates the primary route of administration.

The systemic form is intended to deliver the drug via the bloodstream to deeper tissues, such as the nail matrix. The topical forms are specifically formulated with a suitable base or vehicle to ensure high concentrations are reached only at the skin surface. Terbinafine's unique chemical properties allow for its accumulation in the nail plate.

General Purpose: Why is Corbinal Used?

The general purpose of Corbinal is to effectively clear up infections by eliminating the fungal organisms responsible for causing the disease. This medication achieves its benefit by attacking the fungal cells directly through a mechanism that is generally fungicidal against the responsible pathogens. This action is distinct from agents that only inhibit growth, supporting the definitive eradication of the invading fungal colony.

Regulatory References

  1. Terbinafine, StatPearls, NIH

What side effects are possible with Corbinal?

Possible Side Effects and Safety Information

Corbinal (Terbinafine) is associated with adverse reactions classified according to their frequency, as documented in official regulatory labeling. These effects are grouped by the body system affected, known as System-Organ Classes.


Frequency-Classified Adverse Reactions

Classification Examples of Reactions (System-Organ Class)
Very Common Headache, Gastrointestinal symptoms (e.g., diarrhea, dyspepsia), Rash, Urticaria, Arthralgia, Myalgia (Nervous, GI, Skin, Musculoskeletal)
Common Taste disturbance (dysgeusia, ageusia), Dizziness, Decreased appetite, Visual disturbance (Nervous, GI, Eye)
Rare/Very Rare Liver failure, Severe cutaneous reactions, Blood disorders (Hepato-biliary, Skin, Blood & Lymphatic)

Documented Serious Safety Considerations

Official documents highlight the potential for rare but serious adverse reactions. These include liver failure, which has been reported in patients with and without pre-existing liver disease and may be fatal or require transplant. Other serious events include severe cutaneous reactions (such as Stevens-Johnson syndrome) and severe blood disorders (including agranulocytosis).

Safety Constraints and Special Populations

Systemic use of Corbinal is contraindicated in individuals with active or chronic liver disease. The use is also not recommended in patients with significant renal impairment (creatinine clearance <50 mL/min). Treatment must be discontinued immediately if there is clinical or biochemical evidence of hepatotoxicity (liver injury), progressive skin rash, or blood dyscrasia. While liver injury may occur at any time, it is sometimes reported more frequently within the initial six weeks of treatment.

Overdose and Emergency Response

The official regulatory documentation for Corbinal (Terbinafine Hydrochloride) defines the overdose scenario based on a specific set of documented clinical manifestations and required emergency actions.

Overdose Presentations and Required Actions

Category Official Regulatory Statement
Documented Overdose Manifestations Nausea, vomiting, abdominal pain, headache, dizziness, rash, and frequent urination (polyuria).
Severity Classification Reported single-dose ingestions up to 5 grams have occurred without inducing serious adverse reactions.
Emergency-Response Statement Seek emergency medical attention immediately or contact a designated Poison Help line.

In the event of an overdose, management is defined as general symptomatic and supportive measures. This includes the monitoring of the patient's clinical status and vital signs. The official prescribing information indicates that no specific antidote is known for this overdose. While clinical experience is limited, the regulatory data on large supratherapeutic doses up to 5 grams provides context regarding the expected presentation and the necessary reliance on supportive care for the documented symptoms.

Therapeutic Uses of Corbinal

What Corbinal Treats: Main Uses and Benefits

Corbinal (Terbinafine) is an antifungal medication relevant for supporting the mycological management of established, symptomatic fungal infections of the skin, nails, and scalp, primarily those caused by dermatophytes. It is commonly used to help with fungal infections affecting the scalp, body, groin, feet, fingernails, and toenails.

Therapeutic Management of Fungal Disease

This medication is relevant for managing onychomycosis (fungal infection of the nails), Tinea corporis (ringworm of the body), Tinea cruris (Jock itch), Tinea pedis (Athlete's foot), and Tinea capitis (scalp ringworm). This use helps address symptom clusters that may interfere with daily functioning, providing relief from the intense itching, scaling, and inflammation associated with these manifestations.

Corbinal contributes to improved comfort during periods of heightened symptoms and assists with maintaining a sense of stability, particularly when the fungal infection is extensive, chronic, or when symptoms are persistent. Its application provides support in situations where topical management may be insufficient to address the deep-seated fungal colony.


Quick Fact: Relief for Persistent Fungal Symptoms Corbinal may be part of symptomatic management for conditions that are difficult to manage, contributes to easing the overall symptom load and supports the patient during difficult episodes by easing distress.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

The eligibility profile for oral Corbinal (Terbinafine) tablets is strictly defined by regulatory documents, establishing absolute exclusions and conditional limitations based on patient health status and age.


Populations for Whom Use is Restricted

The medicine is contraindicated and must not be used by patients with chronic or active hepatic disease or individuals with a known hypersensitivity to terbinafine or any of the tablet's excipients. These conditions represent mandatory exclusions according to official labeling.

Use is not generally recommended for women who are pregnant or breastfeeding, as terbinafine is excreted into breast milk. Furthermore, the medicine is not recommended for patients with severe renal impairment (creatinine clearance less than 50 mL/min), as safety and efficacy data have not been adequately established in this population.


Age-Group and Conditional Eligibility

Corbinal is approved for adults. However, its safety and efficacy have not been established for the treatment of onychomycosis in pediatric patients. The medicine should be used with caution in individuals with pre-existing Psoriasis or Lupus Erythematosus, as regulatory documents report potential disease exacerbation. These official rules define who can and cannot use the drug based on organ function, hypersensitivity, and physiological state.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Corbinal has documented interactions primarily related to its effect on drug metabolism in the liver. It is an inhibitor of the CYP450 2D6 enzyme, which can increase the concentration of other medicines that are predominantly metabolized by this enzyme.

Interactions are generally classified into major, moderate, and minor categories based on regulatory documentation.

Medicines requiring caution or monitoring:

  • CYP2D6 Substrates: Products metabolized mainly by CYP2D6, such as certain tricyclic antidepressants (e.g., desipramine), selective serotonin reuptake inhibitors (SSRIs), beta-blockers, and Class 1C antiarrhythmics (e.g., flecainide, propafenone), may experience increased plasma levels and a higher potential for side effects when taken with Corbinal. The dose of the co-administered drug may need to be reduced.
  • Enzyme Inhibitors: Cimetidine and Fluconazole may increase the concentration of Corbinal.
  • Enzyme Inducers: Rifampin may reduce the concentration of Corbinal, potentially decreasing its effectiveness.
  • Other Listed Medicines: Cyclosporine and caffeine are also noted in official documents to have altered clearance when co-administered with Corbinal.

Patients should be aware that the CYP2D6 inhibitory effects can persist for a few weeks after discontinuing Corbinal. Always consult a healthcare professional before combining Corbinal with any other medication or supplement.

Mechanism of Action

The mechanism of Corbinal involves the selective, non-competitive inhibition of the fungal enzyme Squalene Epoxidase . This enzyme is critical for the assembly of the fungal cell membrane structure within the Ergosterol Biosynthesis Pathway. This inhibition is highly specific to the fungal enzyme, which initiates a critical mechanistic cascade.

By blocking Squalene Epoxidase, the molecule causes a dual cellular consequence. The fungal cell suffers a profound deficiency of Ergosterol (weakening the membrane structure) while simultaneously experiencing the toxic accumulation of Squalene within its cytoplasm. These combined factors compromise the fungal cell's integrity, leading to its lysis and elimination of the fungal cell at the cellular level.

The resulting physiological action of the mechanism is primarily fungicidal (cell-killing) against common dermatophytes. However, this action is organism-dependent and may only be fungistatic (growth-inhibiting) against certain yeast species. Furthermore, the action can be constrained by acquired resistance if the fungus develops genetic changes in the target enzyme, limiting the drug's mechanistic action.

Dosage and Administration Information

How to use Corbinal: Administration Guidelines

The use of Corbinal (Terbinafine) is characterized by specific parameters for administration, dosage, and duration for systemic and localized therapy.


Administration Scope

Instruction Entity Labeled Detail
Route of administration Oral (Systemic, via tablet or granules) and Topical (Localized, via cream or solution).
Dosing schedule Standard Adult Dose: 250 mg once daily. Duration for Onychomycosis: 6 weeks for fingernail, 12 weeks for toenail. Duration for Skin Infections (Oral): 2 to 6 weeks for tinea infections of the skin.
Timing in relation to meals (if applicable) Oral Tablets: May be taken independently of food. Oral Granules: Must be taken with food.
Preparation requirements (if applicable) Oral granules must be mixed with a spoonful of soft, non-acidic food (e.g., pudding) and the mixture must be swallowed immediately without chewing.
Age-group administration rules Pediatric (Tinea Capitis): Dosing is weight-based, ranging from 125 mg to 250 mg once daily. Older Adults: No mandatory adjustment is specified, but pre-existing organ function should be assessed.
Missed-dose rules If a dose is missed, take the next scheduled dose at the regular time; compensatory double dosing is not instructed.
Special procedural conditions Topical forms are applied to clean, dry skin. Oral use is not recommended in cases of chronic or active liver disease or significant renal impairment (creatinine clearance < 50 mL/min).

Instruction Classifications (High-Level)

Classification Detail
Administration method type Oral (Tablet, Granule) and Topical (Cream, Solution).
Frequency pattern Once Daily (Systemic); Once or twice daily (Topical).
Use-context constraints Not recommended in patients with chronic/active hepatic disease or severely impaired renal function.

Resulting Procedural Structure

Step sequence:

  • Determine the necessary route of administration (oral or topical) based on the infection type.
  • Administer the medicine according to the specified daily dose (250 mg for adults) and frequency.
  • Complete the fixed, predetermined duration of therapy (e.g., 6 or 12 weeks) as outlined in the labeling.

Connection to the overall use protocol: Standardized protocols establish a therapeutic approach that defines the precise route, required daily dose, and fixed duration for the use of this antifungal agent. These instructions specify essential conditions for administration, such as required food intake for the granule formulation and the status of liver or kidney function. The procedure involves completion of the full, non-variable treatment time.

Recent Clinical Evidence

Corbinal: Recent Clinical Evidence

This section provides an overview of the key clinical studies—such as randomized trials and meta-analyses—that have examined the systemic and topical use of Terbinafine.


Evidence for use in Onychomycosis (Fungal Nail Infection)

The research into Corbinal's use for fungal nail infection (onychomycosis) relies on Randomized Controlled Trials (RCTs) and systematic reviews. Studies were conducted on Adults with varying degrees of disease severity, as well as separate investigations focused on pediatric populations. The main goals of these trials were to measure mycological cure and the rate of complete cure. Studies measured the rate of fungal clearance during the study period, and reported outcomes were followed over extended observation periods. Long-term effects are not fully established regarding the sustained status of the nail, and research is ongoing.


Evidence for use in Fungal Skin Infections (Tinea Pedis, Cruris, and Corporis)

For common fungal skin infections, the research foundation relies on numerous short-term Randomized Controlled Trials (RCTs). The studies monitored Adults and adolescents. The research examined outcomes related to physical discomfort and outcomes linked to inflammatory states, such as the resolution of scaling, itching, and redness. Findings contribute to understanding patterns observed in the trials over the treatment period. Because most of this research focused on short-term outcomes, limited information for long-term outcomes is available.


Evidence for use in Tinea Capitis (Scalp Ringworm)

Research for this specific infection in the scalp was evaluated in Randomized Controlled Trials (RCTs) and systematic reviews that focused on pediatric populations (children). Research examined mycological cure and the rate of clinical cure. Findings from these studies described patterns observed in the populations, but they also showed data related to the outcome measurements being species-dependent. Long-term effects are not fully established for children, specifically regarding recurrence rates years later.


Research Gaps and Areas of Uncertainty

Comparative evidence is lacking in some areas, and defining the specific research parameters for mycological cure is not fully standardized across all studies. Furthermore, subgroup findings are uncertain, as the results apply only to the populations studied, and data for those with unusual or resistant forms of fungal infection remain insufficient. Research provides context but does not determine whether an individual will respond similarly, as study results reflect the specific conditions under which they were conducted.

Frequently Asked Questions (FAQ)

Common questions about Corbinal (FAQ)

Q: How quickly can a person expect Corbinal to start working?

Studies and official information indicate that visible improvement in symptoms can take time, particularly for fungal nail infections (onychomycosis). The final clinical cure for a nail infection is typically observed some months after the treatment course is completed. This delay is related to the time necessary for new, healthy nail tissue to grow out and replace the infected nail.

Q: What is the total duration of action for Corbinal?

According to the official product information, Corbinal is known to distribute slowly into body tissues such as the skin and fat. This results in a long terminal elimination half-life that can range from 200 to 400 hours. This pharmacologic profile allows the drug to remain active in the target tissues for a prolonged period after the last dose.

Q: Can Corbinal be taken at the same time as common over-the-counter pain relievers?

Regulatory documents listing drug interactions primarily focus on certain prescription drug classes like antidepressants and beta-blockers. Common over-the-counter pain relievers (such as Ibuprofen or Acetaminophen) are not explicitly listed as known interacting substances in the official safety information. This is why specific product combinations are often reviewed with a health professional.

Q: Is Corbinal safe for use in older adults (seniors)?

Official documents state that no clinically relevant changes in the drug's concentration have been reported in older adults based solely on age. Therefore, a mandatory dose adjustment for the elderly is not specified. However, the official guidance highlights the importance of assessing pre-existing kidney or liver impairment, which is assessed for all patients regardless of age.

Q: What are the long-term effects of taking Corbinal?

Clinical studies often involve a follow-up period after the treatment course is finished to observe outcomes. Official reports frequently note that comprehensive long-term effects regarding recurrence or the sustained health status of the nail, years after the follow-up period, are not fully established in clinical trial data.

Q: Is it possible to be allergic to Corbinal?

Yes, the medicine is listed in regulatory documents as contraindicated (must not be used) if a patient has a known hypersensitivity to the active ingredient or any excipients. Hypersensitivity is the regulatory term for a severe allergic or immune reaction. It is based on the requirement that the full list of ingredients be checked for any known allergies or sensitivities.

Q: Is Corbinal used for conditions other than the main one listed?

The medicine is officially indicated for infections caused by specific fungal species called dermatophytes, which are responsible for common nail and skin infections. While laboratory studies have shown activity against other organisms, the drug’s clinical efficacy for those unapproved conditions has not been established in the controlled trials required by regulatory bodies.

Q: Are any specific vitamins or supplements that interact with Corbinal?

Official interaction lists focus on prescription medications and certain known compounds that affect liver enzymes, such as Cimetidine and Caffeine. The safety documentation does not explicitly cover every specific vitamin or general supplement. Due to this, general caution is applied, and any supplements are typically reviewed with a health professional.

Q: Does Corbinal interact with alcohol?

Regulatory warnings recommend caution regarding alcohol consumption while using this medication. This advice is related to the rare but serious potential for liver problems documented in the product information. Consuming alcohol may increase the potential risk associated with liver function.

Q: What happens if a person misses a dose of Corbinal?

Regulatory instructions advise that if a dose is missed, the patient should simply take the next scheduled dose at the regular time. The regulatory instructions specify that a compensatory double dose is not to be taken to compensate for the missed one.

Q: Is Corbinal a controlled substance?

No. According to federal scheduling records and official product labeling, this medication is not classified as a controlled substance.

Q: Is there a risk of becoming dependent on Corbinal?

Regulatory documents concerning drug abuse and dependence do not classify this medication as a controlled substance, nor do they include warnings about dependency or abuse risk in the official product labeling.

Q: Can Corbinal affect sleep patterns?

Official product information includes Trouble with sleeping (Insomnia) as a potential side effect. This has been reported during clinical trials or post-marketing experience. For this reason, changes to sleep patterns are documented in the product information.

Q: Does Corbinal affect blood sugar levels?

The medicine is not commonly known to affect blood sugar. However, official safety documents include rare reports of hypoglycemia (low blood sugar), which is often indirectly linked to other side effects like a decrease in appetite or anorexia resulting from taste disturbance.

Q: What is the role of diet while taking Corbinal?

Diet plays a minimal role for the oral tablet, which can be taken without regard to food. However, the granule formulation must be mixed with food upon administration. Additionally, a rare side effect is taste disturbance, which can sometimes lead to decreased food intake and subsequent weight loss.

Q: Does Corbinal interact with herbal tea products?

Official drug interaction lists do not typically specify herbal tea products unless they contain strong enzyme inhibitors. Caution is suggested generally, as some herbal products can affect the same CYP450 liver enzymes that are responsible for metabolizing this medicine.

Q: Can Corbinal be split or crushed?

The regulatory documents do not provide instruction or explicit allowance for the tablet form to be split or crushed. The standard adult dose is one whole 250 mg tablet and is not intended to be modified before being taken.

Q: Is Corbinal taken once a day or multiple times a day?

The standard systemic use of the oral tablet for fungal infections, as described in regulatory documents, is to be taken once daily.

Q: Are there different strengths of Corbinal?

The standard oral tablet form of the medicine is available in a 250 mg strength, as detailed in the official dosage forms section.

Q: Does Corbinal cause weight gain or weight loss?

Post-marketing surveillance reports include weight decreased secondary to dysgeusia as a possible adverse reaction. This describes weight loss that may occur as an indirect result of taste disturbance, a known side effect of the medicine.

Q: Are there specific storage requirements for Corbinal?

Regulatory documents require that the tablets be stored at a controlled room temperature, typically 20 C to 25 C (68 F to 77 F). The medicine must be protected from light and moisture and kept securely in its original, tightly closed container.

How should Corbinal be stored and disposed of?

Storage Requirements

Corbinal tablets must be stored at a controlled room temperature, typically between 20 C and 25 C (68 F to 77 F). The medication must be strictly protected from light and moisture, and should be kept in a dry place. The container must remain tightly closed and stored in the original packaging. Topical forms, such as the cream, must not be frozen and may have an in-use stability period, such as 28 days after first opening.

Child-Safety and Handling

It is a requirement that Corbinal, in all forms, be kept out of the sight and reach of children.

Disposal Instructions

Any unused or expired Corbinal product must be disposed of in accordance with local regulatory requirements for pharmaceutical waste. The product should not be disposed of via wastewater or household trash unless specifically advised by official guidelines.

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

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