BENZAC(r) AC Gel Benzoyl peroxide 25 mg/g, 50mg/g and 100 mg/g
BENZAC AC Gel contains benzoyl peroxide 25mg/g or 50mg/g or 100mg/g in a gel base containing docusate sodium, disodium edetate, poloxamer 182, carbomer 940, propylene glycol, acrylates copolymer, glycerol, purified water, citric acid and/or sodium hydroxide.
Benzoyl peroxide has been shown to have potent broad spectrum antimicrobial activity, particularly against Proprionibacterium acnes which is normally present in affected hair follicles. In addition benzoyl peroxide has demonstrated exfoliative and comedolytic activities both of which are beneficial in the treatment of acne. The addition of acrylates copolymer provides control of excess sebum production and glycerin is included for its humectant properties.
The percutaneous penetration of benzoyl peroxide in rat, rabbit, monkey and man is low. The majority of the penetrated benzoyl peroxide is converted into benzoic acid which after absorption into the systemic circulation is rapidly eliminated by the kidney. There is no evidence of any tissue accumulation. There is no evidence that cutaneous application of the proposed clinical doses of BENZAC AC Gel should be associated with any systemic adverse reactions in humans.
As an aid in the treatment of mild to moderate acne vulgaris
Wash and dry affected areas. Apply once daily, leaving on the skin for 2 hours then wash off with water. After three days if no discomfort is felt, apply in the evening and allow to remain all night. After a further three days, if there is no discomfort and the acne is resisting treatment, apply twice a day, once in the morning. Leave on all day then wash the affected area and apply again in the evening. Leave on all night. Normal use may cause a mild burning feeling at first followed by some redness with some peeling during the first few days. BENZAC AC Gel is available in three strengths, 2.5%, 5% and 10%. Unless otherwise directed begin acne therapy with the weakest strength. This suggestion applies especially to people with sensitive skins.
BENZAC AC Gel is contraindicated in patients with a history of hypersensitivity to any of its ingredients.
If severe irritation develops discontinue use and institute appropriate therapy. After the reaction clears treatment may be resumed with less frequent application. These preparations should not be used on or near the eyes or on mucous membranes. If accidental contact occurs rinse with water. Avoid excessive exposure to sunlight or other sources of ultraviolet light. Do not use at high altitudes or near snow covered ground. Be careful not to use cosmetic products containing alcohol, abrasives or medicated soaps. These may cause an extra irritant or drying effect. Contact with any coloured material (including hair or fabric) may result in bleaching or discolouration.
There are no published reports relating to the effects of benzoyl peroxide on reproductive function, fertility, teratogenicity, embryotoxicity, or peri- and post- natal development in animals. In widespread clinical use for the cutaneous treatment of acne vulgaris, at concentrations up to 10% w/w, for several decades, benzoyl peroxide has never been associated with effects in these parameters in humans. Although safe for use during pregnancy BENZAC AC Gel should only be used by a pregnant woman if clearly needed. It is not known whether benzoyl peroxide is excreted in human milk. Caution should be exercised when BENZAC AC Gel is administered to a nursing woman and the preparation should not be applied on the chest to avoid accidental exposure of the infant.
Allergic contact dermatitis and dryness have been reported with topical benzoyl peroxide therapy.
There are no known interactions with other medications which might be used cutaneously and concurrently with BENZAC AC Gel, however drugs with desquamative, irritant and drying effects should not be used concurrently.
If the medication is applied excessively, no more rapid or better results will be obtained and severe irritation might develop. In this event treatment must be discontinued and appropriate symptomatic therapy should be instituted.
Shelf life of 24 months when store below 25degC.
BENZAC AC Gel 2.5% and 5% are General Sales Medicines, BENZAC AC Gel 10% is a Pharmacy Only Medicine.
50g tube contained in a carton for each strength.
Consult pharmacist or doctor.
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