INDICATIONS. NIZORAL® (ketoconazole) 2% Shampoo is indicated for the treatment of tinea (pityriasis) versicolor caused by or presumed to be caused by Pityrosporum orbiculare (also known as Malassezia furfur or M. orbiculare). Ketoconazole cream is used to treat tinea corporis (ringworm; fungal skin infection that causes a red scaly rash on different parts of the body), tinea cruris (jock itch; fungal infection of the skin in the groin or buttocks), tinea pedis (athlete's foot; fungal infection of the skin on the feet and between the toes), tinea versicolor (fungal. Tinea versicolor is a common skin infection that develops from a type of fungus. Everyone's skin has this fungus — it occurs naturally, even on healthy skin. Nizoral shampoo is commonly used to treat dandruff and other skin infections. However, recently, there are evidences from various studies indicating that Nizoral shampoo can actually stop hair loss and even promote hair regrowth. Tinea versicolor (TIN-ee-uh vur-si-KUL-ur) occurs most frequently in teens and young adults. Sun exposure may make tinea versicolor more apparent. Nizoral Shampoo - Clinical Pharmacology. Tinea (pityriasis) versicolor is a non-contagious infection of the skin caused by Pityrosporum orbiculare (Malassezia furfur). Nizoral 2% Shampoo - Summary of Product Characteristics (SmPC) by Janssen-Cilag Ltd Nizoral (ketoconazole) 2% Shampoo is an antifungal medication used to treat fungal infections of the skin such as athlete's foot, jock itch, ringworm, and seborrhea (dry, flaking skin). Tinea versicolor is cause by a yeast type of skin fungus, which is present on normal skin. If the skin is oily enough, warm enough and moist enough, it starts to grow into small colonies on the surface of the skin. Tinea versicolor is a condition characterized by a skin eruption on the trunk and proximal extremities. The majority of tinea versicolor is caused by the fungus Malassezia globosa, although Malassezia furfur is responsible for a small number of cases.