Nizol Shampoo is a medicated shampoo containing 1% w/v Ketoconazole, a broad-spectrum antifungal agent. It is indicated for the treatment of dandruff, seborrheic dermatitis, and pityriasis versicolor. Nizol Shampoo works by inhibiting the synthesis of ergosterol, an essential component of fungal cell membranes, thereby causing fungal cell death. This shampoo should be used daily for 2-4 weeks for optimal results. It is essential to follow the directions for use and consult a healthcare professional for proper guidance. Nizol Shampoo should not be used by individuals with known hypersensitivity to Ketoconazole or any of its excipients.