Product image of Ketoisdin (Ketoconazole) supplied by GNH India

Ketoisdin

Active Ingredient:
Ketoconazole
Origin:
EU

Ketoisdin (Ketoconazole)

Ketoconazole, the active ingredient in Ketoisdin, is an imidazole antifungal presented as a topical formulation for skin use. It treats common fungal skin infections such as tinea corporis, tinea pedis, tinea cruris, seborrheic dermatitis and pityriasis versicolor in both adults and children.

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

Manufacturer / TM Owner

Isdin, S.A.

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Indications & Clinical Uses

Ketoconazole acts on dermatophyte and yeast infections of the skin, providing antifungal activity across several common conditions.

  • Tinea corporis: clears the ring‑shaped rash by inhibiting fungal growth.
  • Tinea pedis: reduces scaling and itching on the feet.
  • Tinea cruris: resolves the red, inflamed rash in the groin area.
  • Seborrheic dermatitis: diminishes flaking and erythema on the scalp and face.
  • Pityriasis versicolor: restores normal skin pigmentation by eradicating Malassezia species.

How It Works

  • Ketoconazole inhibits the fungal enzyme lanosterol 14α‑demethylase, a key step in ergosterol synthesis. By blocking ergosterol production, the drug disrupts the integrity of the fungal cell membrane, leading to increased permeability and ultimately cell death. This mechanism is selective for fungi, sparing human cells that use cholesterol instead of ergosterol.

Side Effects

Ketoconazole may cause local and systemic reactions, although most are mild and reversible.

Common Side Effects

  • Skin irritation: mild burning or stinging at the application site.
  • Pruritus: itching of the treated area.
  • Redness: localized erythema.
  • Dryness: flaky or dry skin where applied.

Serious or Rare Side Effects

  • Contact dermatitis: severe allergic skin reaction.
  • Hepatotoxicity: rare systemic absorption leading to liver enzyme elevation.
  • Stevens‑Johnson syndrome: extremely rare but severe mucocutaneous reaction.

Precautions & Warnings

When using Ketoisdin, consider the following safety measures.

  • Avoid ocular contact: rinse eyes thoroughly if exposure occurs.
  • Do not apply to broken skin: limit use to intact epidermis.
  • Limit duration: follow prescriber instructions to prevent resistance.
  • Monitor liver function: consider periodic testing if extensive skin area is treated.
  • Store below 25°C: keep in the original container, protect from moisture and light.

Avoid Interactions

Ketoconazole can interact with other topical agents and systemic medications.

Major Interactions (Avoid)

  • Concurrent use with other potent topical corticosteroids: may increase skin atrophy risk.
  • Systemic azole antifungals: additive hepatotoxic potential.

Moderate Interactions (Monitor Closely)

  • Topical retinoids: may enhance irritation.
  • Alcohol‑containing skin products: could increase local burning.
  • Phototoxic agents: advise sun protection to reduce irritation.

Frequently Asked Questions

Ketoisdin contains ketoconazole and is indicated for the topical treatment of common fungal skin infections such as tinea corporis (ringworm), tinea pedis (athlete’s foot), tinea cruris (jock itch), seborrheic dermatitis, and pityriasis versicolor. It works by eliminating the fungi responsible for these conditions.

Ketoconazole inhibits the fungal enzyme lanosterol 14α‑demethylase, which is essential for synthesising ergosterol, a key component of fungal cell membranes. By blocking ergosterol production, the drug compromises membrane integrity, leading to fungal cell death and clearance of the infection.

The specific dosage and frequency of Ketoisdin are determined by the prescribing healthcare professional based on the infection type, severity, patient age, and treatment area. Patients should follow the prescriber’s instructions and the product label for optimal results.

Safety data for topical ketoconazole in pregnancy and lactation are limited. Healthcare providers generally weigh the benefits against potential risks before prescribing. Women who are pregnant, planning to become pregnant, or breastfeeding should discuss alternative treatments with their clinician.

To request Ketoisdin, 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 (including any cold‑chain requirements), and necessary import documentation.

Ketoisdin (ketoconazole) belongs to the imidazole class, offering broad‑spectrum activity against dermatophytes and yeasts. Compared with allylamine agents such as terbinafine, ketoconazole may be less irritating but can have a higher risk of systemic absorption and liver effects when used over large areas. Choice of therapy depends on infection type, patient factors, and clinician preference.

Ketoisdin should be stored below 25 °C (77 °F) in its original packaging. Keep the product away from moisture, direct sunlight, and excessive heat to maintain stability and potency throughout its shelf life.

Ketoisdin is applied topically to the affected skin area, usually once or twice daily as directed by the prescriber. The skin should be clean and dry before application, and the medication should be spread in a thin layer, gently massaged until fully absorbed.

While rare, serious adverse reactions can include severe allergic skin reactions such as contact dermatitis, systemic hepatotoxicity from significant absorption, and, in extremely uncommon cases, Stevens‑Johnson syndrome. Patients should seek immediate medical attention if they notice extensive rash, blistering, jaundice, or other systemic symptoms.

Ketoisdin should be avoided in individuals with known hypersensitivity to ketoconazole or any component of the formulation. It is also contraindicated on broken or inflamed skin, and caution is advised for patients with pre‑existing liver disease or those taking other hepatotoxic medications.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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