Nizoral (Ketoconazole)

Ketoconazole, the active ingredient in Nizoral, is an azole antifungal presented as a topical formulation for skin application. It is used to treat fungal infections of the skin and scalp in adults and children. The medication is formulated for external use and is indicated for a range of dermatophyte and yeast infections, providing localized antifungal activity with minimal systemic absorption.

GNH USA supplies Nizoral as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies, clinics and research institutions worldwide.

Ketoconazole is an azole antifungal that targets fungal cell membrane synthesis, making it effective for several skin conditions.

- Seborrheic dermatitis: reduces scaling and erythema on the scalp and face. - Tinea corporis (ringworm): clears the fungal infection on the body. - Tinea cruris (jock itch): alleviates itching and rash in the groin area. - Tinea pedis (athlete's foot): treats fungal infection of the feet. - Pityriasis versicolor: eliminates yeast overgrowth causing discolored patches.

Topical ketoconazole may cause local and, rarely, systemic adverse reactions.

Common Side Effects: - Skin irritation: mild burning or stinging at the application site. - Itching: transient pruritus after use. - Dryness: localized skin dryness or flaking. - Redness: erythema around the treated area.

Serious or Rare Side Effects: - Severe allergic reaction: swelling, hives, or difficulty breathing. - Stevens‑Johnson syndrome: rare but serious skin blistering. - Hepatotoxicity: systemic absorption may rarely affect liver function. - Photosensitivity: increased sensitivity to sunlight. - Contact dermatitis: allergic skin inflammation.

When using Nizoral, consider the following precautions to ensure safe and effective treatment.

- Avoid application on broken or inflamed skin: may increase irritation. - Do not apply near eyes or mucous membranes: can cause severe irritation. - Discontinue use if severe redness or swelling occurs: seek medical advice. - Use with caution in patients with liver disease: systemic absorption may be higher. - Avoid concurrent use with other topical antifungals unless directed: risk of increased irritation. - Store at room temperature: keep in original container, protect from moisture and heat.

Ketoconazole can interact with certain systemic and topical agents; awareness helps prevent adverse effects.

Major Interactions (Avoid): - Concurrent oral azole antifungals (e.g., itraconazole): may lead to excessive systemic exposure. - Topical corticosteroids applied over ketoconazole: can increase skin irritation. - Warfarin therapy: systemic absorption may potentiate anticoagulant effect. - Hepatotoxic drugs (e.g., isoniazid): combined use may increase liver risk.

Moderate Interactions (Monitor Closely): - Other topical antifungal agents: monitor for cumulative irritation. - Photosensitizing agents: advise sun protection. - Systemic CYP3A4 inhibitors (e.g., erythromycin): monitor liver function if systemic absorption occurs.