Product image of Myconormin (Terbinafine Hydrochloride) supplied by GNH India

Myconormin

Active Ingredient:
Terbinafine Hydrochloride
Origin:
EU

Myconormin (Terbinafine Hydrochloride)

Terbinafine Hydrochloride, the active ingredient in Myconormin, is a allylamine antifungal presented as an oral tablet for oral use. It treats fungal infections of the nail and skin in adult patients, targeting conditions such as onychomycosis and various tinea infections.

GNH India supplies Myconormin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Almirall Hermal Gmbh

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Indications & Clinical Uses

Myconormin is an allylamine antifungal used to treat infections caused by dermatophytes and yeasts.

  • Onychomycosis: reduces fungal growth in the nail plate, improving nail appearance and preventing spread.
  • Tinea pedis: alleviates foot skin infection, relieving itching and scaling.
  • Tinea corporis: clears body‑wall fungal lesions, restoring normal skin texture.
  • Tinea cruris: treats groin‑area fungal infection, reducing redness and discomfort.

How It Works

  • Terbinafine Hydrochloride inhibits the fungal enzyme squalene epoxidase, a key step in ergosterol synthesis. By blocking this pathway, the drug causes accumulation of squalene, which is toxic to fungal cells, and depletes ergosterol, compromising cell membrane integrity and leading to fungal cell death.

Side Effects

Terbinafine is generally well tolerated, but several adverse reactions have been reported.

Common Side Effects

  • Gastrointestinal upset: nausea, abdominal pain, or dyspepsia.
  • Skin reactions: mild rash, pruritus, or erythema.
  • Taste disturbances: loss of taste or metallic taste.

Serious or Rare Side Effects

  • Hepatotoxicity: elevated liver enzymes or hepatitis.
  • Severe skin reactions: Stevens‑Johnson syndrome or toxic epidermal necrolysis.
  • Hematologic changes: neutropenia or eosinophilia.
  • Peripheral neuropathy: tingling or numbness in extremities.
  • Anaphylaxis: rare but potentially life‑threatening allergic response.

Precautions & Warnings

Before initiating therapy, clinicians should consider several safety measures.

  • Assess liver function: obtain baseline hepatic enzymes and monitor periodically.
  • Evaluate hypersensitivity: avoid use in patients with known terbinafine allergy.
  • Monitor skin reactions: discontinue if severe rash or blistering occurs.
  • Use cautiously in the elderly: adjust monitoring due to potential comorbidities.
  • Store at ambient temperature: keep in the original pack, protect from moisture and direct sunlight.

Avoid Interactions

Terbinafine may interact with several co‑administered medicines, requiring attention to dosage and monitoring.

Major Interactions (Avoid)

  • CYP2D6 inhibitors (e.g., fluoxetine, paroxetine): may increase terbinafine plasma levels.
  • Rifampin or other strong CYP inducers: may reduce terbinafine effectiveness.

Moderate Interactions (Monitor Closely)

  • Warfarin: terbinafine can enhance anticoagulant effect, requiring INR monitoring.
  • Oral contraceptives: may decrease hormonal efficacy, consider alternative contraception.
  • Alcohol: concurrent use may increase risk of liver toxicity.

Frequently Asked Questions

Myconormin, containing terbinafine hydrochloride, is prescribed for fungal infections of the nail (onychomycosis) and skin, including athlete's foot (tinea pedis), body ringworm (tinea corporis), and groin infection (tinea cruris). It works by targeting the fungi that cause these conditions, helping to clear infection and prevent recurrence.

Terbinafine hydrochloride inhibits the fungal enzyme squalene epoxidase, which is essential for synthesising ergosterol, a key component of fungal cell membranes. Blocking this step leads to toxic squalene buildup and loss of membrane integrity, ultimately killing the fungal cells and halting infection.

The specific dosage of Myconormin is determined by the prescribing clinician based on the infection type, severity, patient age, weight, and renal or hepatic function. Healthcare providers set the appropriate regimen and duration according to current clinical guidelines.

Safety data for terbinafine during pregnancy and lactation are limited. It is generally advised to avoid use unless the potential benefit justifies the potential risk to the fetus or infant. Physicians should evaluate each case individually and discuss alternatives when appropriate.

To request Myconormin, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Compared with azole antifungals, terbinafine offers a different mechanism by targeting squalene epoxidase, often resulting in shorter treatment courses for nail infections. It may have fewer drug‑drug interactions than some azoles but requires monitoring for liver function and potential skin reactions.

Myconormin should be stored at ambient temperature, below 25 °C, in its original packaging. Protect the product from moisture, excessive heat, and direct sunlight to maintain its stability and potency throughout its shelf life.

Myconormin is taken orally, usually as a tablet, with or without food as directed by the prescriber. Patients should swallow the tablet whole with water and follow the dosing schedule provided by their healthcare professional.

Serious risks include hepatotoxicity, which may present as elevated liver enzymes or hepatitis, and severe skin reactions such as Stevens‑Johnson syndrome or toxic epidermal necrolysis. Prompt medical attention is required if signs of liver dysfunction or severe rash develop.

Myconormin is contraindicated in individuals with known hypersensitivity to terbinafine or any component of the formulation. Caution is also advised for patients with pre‑existing liver disease, and it should be avoided in pregnant or breastfeeding women unless clearly indicated by a physician.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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