Ketoconazole

Ketoconazole is the active ingredient in Nizoral shampoo, which has been shown to be effective in treating hair loss resulting from androgenic alopecia, or male-patterned and female-patterned hair loss. It is available in both prescription and non-prescription strengths. Ketoconazole is FDA approved for treating fungal infections of the scalp, but it has not been approved to treat hair loss. However, because many people have found it to be quite successful in treating hair loss, doctors will often recommend it for that reason.