NIZORAL is a brand name for Ketoconazole, supplied as a shampoo. The medicine, its uses, side effects and dosage are the same regardless of brand.
Verbatim from this product's HC label. Tap a section to expand.
NIZORAL® (ketoconazole) 2% shampoo is contraindicated in persons who have shown hypersensitivity to the active or excipient ingredients of this formulation. WARNINGS Irritation may occur when NIZORAL® (ketoconazole) 2% shampoo is used immediately after prolonged treatment with topical corticosteroids.
To prevent a rebound effect after stopping a prolonged treatment with topical corticosteroids, it is recommended to continue applying a mild topical corticosteroid at the onset of treatment with NIZORAL® shampoo, and to subsequently and gradually withdraw the steroid therapy over a period of 2 - 3 weeks.
PRECAUTIONS If a reaction suggesting sensitivity or chemical irritation should occur, use of NIZORAL® (ketoconazole) 2% shampoo should be discontinued. There are no adequate and well-controlled studies in pregnant or lactating women.
NIZORAL® shampoo does not produce detectable blood levels after topical application to the scalp. Plasma levels were detected after topical administration of NIZORAL® shampoo on the whole body. There are no known risks associated with the use of NIZORAL® shampoo 2% in pregnancy or lactation.
There were reports of spontaneous abortion and anencephaly after exposure to NIZORAL® shampoo during pregnancy, although there is insufficient information to confirm any association between NIZORAL® shampoo and these abnormal pregnancy outcomes.
However, due to the teratogenic nature of the active ingredient, ketoconazole, the use of NIZORAL® shampoo is not recommended in pregnant or nursing women except under the advice of a physician. 4 Clinical data on the use of NIZORAL® shampoo in children under 12 are not available; therefore, such use is not recommended except under the advice of a physician.
ADVERSE REACTIONS Clinical Trial Data The safety of NIZORAL® Shampoo 2% was evaluated in 2890 subjects in 22 clinical trials where NIZORAL® Shampoo 2% was administered topically to the scalp and/or skin. No adverse drug reactions (ADRs) were reported in 1% of NIZORAL® Shampoo 2% -treated subjects.
Adverse drug reactions that occurred in <1% of NIZORAL® Shampoo 2%-treated subjects in the clinical datasets are listed in Table 1. 5 Table 1. Adverse Drug Reactions Reported in <1% of 2890 NIZORAL® Shampoo 2%-treated Subjects in 22 Clinical Trials System Organ Class Preferred Term Eye Disorders Eye irritation Increased lacrimation General Disorders and Administration Site Conditions Application site erythema Application site irritation Application site hypersensitivity Application site pruritus Application site pustules Application site reaction Immune System Disorders Hypersensitivity Infections and Infestations Folliculitis Nervous System Disorders Dysgeusia Skin and Subcutaneous Tissue Disorders Acne Alopecia Dermatitis contact Dry skin Hair texture abnormal Rash Skin burning sensation Skin disorder Skin exfoliation Post-marketing Experience Adverse drug reactions first identified during post-marketing experience with NIZORAL® Shampoo 2% are included in Table 2.
Not medical advice. Always read the patient information leaflet and follow your prescriber or pharmacist.
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In this table, the frequencies are provided according to the following convention:
Very common 1/10 Common 1/100 and < 1/10 Uncommon 1/1,000 and <1/100 Rare 1/10,000 and <1/1,000 Very rare <1/10,000, including isolated reports In Table 2, ADRs are presented by frequency category based on spontaneous reporting rates.
6 Table 2. Adverse Drug Reactions Identified During Post-marketing Experience with NIZORAL® Shampoo 2% by Frequency Category Estimated from Spontaneous Reporting Rates Skin and Subcutaneous Tissue Disorders Very Rare Angioedema, Urticaria, Hair colour changes SYMPTOMS AND TREATMENT OF OVERDOSAGE Oral ingestion is usually followed by nausea and vomiting due to the detergent.
In the event of accidental ingestion, supportive and symptomatic measures should be carried out. In order to avoid aspiration, neither emesis nor gastric lavage should be performed. It has been reported that ketoconazole cannot be removed by hemodialysis.
DOSAGE AND ADMINISTRATION Adults and children over 12 years of age:
NIZORAL® (ketoconazole) 2% shampoo (5 to 10 mL) should be applied to the wet scalp, worked into a lather and left on for 3-5 minutes before rinsing with water. As with other shampoos, care should be taken to keep the shampoo out of the eyes and off the eyelids.
Treatment:
Twice weekly for 2 to 4 weeks.
Prophylaxis:
Once every one or two weeks. 44 Description: Ketoconazole is an almost white to slightly beige coloured powder which is freely soluble in chloroform, methanol and diluted hydrochloric acid; sparingly soluble in 2-propanol and acetone and practically insoluble in water.
Composition:
NIZORAL® (ketoconazole) 2% shampoo is a viscous pink - orange liquid with an herbal bouquet. NIZORAL® 2% shampoo contains the broad- spectrum synthetic antifungal agent, ketoconazole, formulated in a shampoo 8 vehicle consisting of sodium laureth sulphate, disodium monolaureth sulphosuccinate, coconut fatty acid diethanolamide, laurdimonium hydrolyzed animal collagen, macrogol 120 methyl glucose dioleate, perfume bouquet, imidurea, hydrochloric acid, sodium hydroxide, sodium choloride, erythrosin and water.
DOSAGE FORM Availability:
NIZORAL® (ketoconazole) 2% shampoo contains 20 mg ketoconazole per gram. It is supplied in HDPE flasks containing 60 mL or 120 mL shampoo.
Storage:
NIZORAL® 2% shampoo should be stored at 15-30C. MYCOLOGY In yeast and fungal cells, ergosterol is the main sterol regulating membrane permeability. Ketoconazole inhibits the biosynthesis of ergosterol and affects the synthesis of triglycerides and phospholipids.
Diagram 1:
Site of action of ketoconazole (K) on the steroid biosynthetic pathway […]