NIZORAL ® (ketoconazole) 2% Shampoo is intended for external use only. In the event of accidental ingestion, supportive and symptomatic measures should be employed. Induced emesis and gastric lavage should not be performed to avoid aspiration. Use Nizoral 2% shampoo to wash the hair or affected areas of skin as below. Take care to avoid getting the shampoo in the eyes. If it does enter the eyes, rinse immediately with plenty of water. What is Nizoral Shampoo? Nizoral shampoo is used to treat and prevent seborrhoeic dermatitis (or, in its milder form, dandruff). It’s active ingredient, Ketoconazole, is approved for use as an anti-fungal agent in the treatment of infections that occur due to fungi and yeasts. The presence of white flakes and an itchy scalp means you have dandruff. As soon as you notice these symptoms, use an over-the-counter anti-dandruff shampoo to stop the itching, soothe your scalp and make the flakes dissipate. Tinea versicolor. Yes.Tinea versicolor can be treated with Nizoral (ketoconazole)shampoo. This is available over the counter. Rub the shampoo on your body everyday in the shower. Nizoral shampoo contains the active ingredient ketoconazole. Ketoconazole prevents the growth of fungi as well as kills the pathogen itself, advises the Mayo Clinic. When used in conjunction with other medications, it's applied to the scalp two to three times a week for right around a month. However, your doctor may recommend its use for the entirety of treatment, which is usually upwards of. Easy-to-read patient leaflet for Nizoral (Ketoconazole Shampoo 2%). Includes indications, proper use, special instructions, precautions, and possible side effects. Includes indications, proper use, special instructions, precautions, and possible side effects. Who Should Use Nizoral Men or women who have a fungal infection of the scalp, dandruff, or androgenetic alopecia might benefit from including Nizoral shampoo as part of their hair loss treatment plan. If you need to use a shampoo to wash your hair more often, use your usual shampoo. If your hair is very thick, you can wash with your usual shampoo and then use Nizoral Dandruff Shampoo. If your hair is very thick, you can wash with your usual shampoo and then use Nizoral Dandruff Shampoo.