Nizoral

Nizoral is an antifungal medication containing active ketoconazole. It works by disrupting the synthesis of ergosterol, an essential component of fungal cell membranes, which impairs cell growth and leads to clearance of the infection. While highly effective as a topical treatment (shampoo and cream), oral tablet forms carry a significant risk of hepatotoxicity and are reserved only for systemic infections when alternative treatments are unavailable.

Dosage by Body Weight

Topical Shampoo (2%): Apply to wet scalp, lather, leave on for 3 to 5 minutes, then rinse. Use twice weekly for 2 to 4 weeks. Topical Cream (2%): Apply to affected skin and surrounding areas once or twice daily for 2 to 6 weeks. Oral Tablets: Generally 200 mg to 400 mg once daily taken with food, strictly as prescribed and monitored by a doctor.

  1. Body Weight
    Below 5 kg
    Dose
    Not recommended
    Frequency
    Do not use
    Tracking Notes
    Safety and efficacy in infants and very small children have not been established.
  2. Body Weight
    5-7 kg
    Dose
    Not recommended
    Frequency
    Do not use
    Tracking Notes
    Avoid oral formulations due to high risk of liver toxicity. Safer pediatric antifungal alternatives are preferred.
  3. Body Weight
    8-10 kg
    Dose
    Not recommended
    Frequency
    Do not use
    Tracking Notes
    Topical applications should only be used under direct supervision of a pediatrician.
  4. Body Weight
    11-15 kg
    Dose
    Not routinely used
    Frequency
    Consult physician
    Tracking Notes
    For children over 2 years, oral dosing is occasionally calculated at 3.3 to 6.6 mg/kg/day, but only under strict specialist guidance.
  5. Body Weight
    16-20 kg
    Dose
    Not routinely used
    Frequency
    Consult physician
    Tracking Notes
    Pediatric use requires monitoring of liver enzymes if oral therapy is initiated. Topical options are highly preferred.

Formulation

ShampooCreamTablet

Purpose

Treatment of fungal and yeast infections of the skin and scalp, such as dandruff, seborrheic dermatitis, tinea versicolor, athlete's foot, jock itch, and ringworm.

Generic Name

Ketoconazole

Scheduled Drug

Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.