As with other shampoos, local irritation, itching, or contact dermatitis (due to irritation or an allergic reaction) may occur. Hair can become greasy or dry. However, when using NIZORAL® shampoo 2%, such phenomena are rarely observed.
In some cases, mainly in patients with chemically damaged or gray hair, there was a discoloration of the hair.
Side effects identified during post-marketing studies of NIZORAL® shampoo 2% are listed below.
Classification of the incidence of side effects is provided below: very often (≥ 1/10); often (≥ 1/100, <1/10); infrequently (≥ 1/1000, <1/100); rarely (≥ 1/10 000, <1/1000); very rarely (<1/10 000), including individual messages.
Immune system disorders: very rarely - hypersensitivity, hives.
Disturbances from the skin and subcutaneous tissues: very rarely - alopecia, rash, skin irritation, dry skin.