ECONAZOLE SANDOZ 1 % Powder for cutaneous application Bottle powder/30g

Econazole nitrate.................................................................................................................................................. 1 g

For 100 g of powder.

Candidiasis

Cutaneous candidiasis encountered in human clinical practice is usually due to Candida albicans. However, the detection of Candida on the skin cannot in itself constitute an indication.

• Treatment of mycoses of macerated folds: genital, submammary, interdigital intertrigo.

Antifungal treatment of a possible digestive and/or vaginal focus is required in candidiasis of the inguinal and intergluteal folds to prevent recurrences.

Dermatophytoses

Treatment:

• Macerated genital and crural intertrigo.

• Toe intertrigo.

Dosage

Apply ECONAZOLE SANDOZ to the skin 2 to 3 times a day, without exceeding 3 applications per day. Treatment should be continued for 2 to 4 weeks.

Method of administration

Cutaneous use.

Dust the lesions to be treated by sweeping the entire affected area.

Hypersensitivity to the active substance or to any of the excipients listed in section Composition.

For external use only.

Candidiasis: use of an acidic pH soap is not recommended (a pH that promotes the multiplication of Candida).

The risk of systemic passage must be taken into account in situations where the phenomenon of local occlusion may recur (for example elderly subjects, pressure sores, submammary intertrigo).

Do not apply in the eye, nose or generally on mucous membranes.

Drug interaction with vitamin K antagonists: the INR must be monitored more frequently and the dosage of the vitamin K antagonist adjusted during treatment with ECONAZOLE SANDOZ and after its discontinuation (see section Interactions).

If a hypersensitivity (allergic) or irritation reaction occurs, treatment must be discontinued.

ECONAZOLE SANDOZ 1 %, powder for cutaneous application contains talc. Avoid inhalation of the powder to prevent irritation of the respiratory tract, particularly in children and infants.

Associations subject to precautions for use

Econazole is a known inhibitor of CYP3A4/2C9.

Vitamin K antagonists (acenocoumarol, fluindione, warfarin)

Increased effect of the vitamin K antagonist and risk of bleeding.

More frequent monitoring of INR. Possible adjustment of the vitamin K antagonist dose during treatment with econazole and after its discontinuation.

Pregnancy

Preclinical studies have shown reproductive toxicity (see section Preclinical safety).

Systemic absorption of econazole is low (< 10 %) after application to healthy skin in humans. There are no adequate and well-controlled studies on the harmful effects of using ECONAZOLE SANDOZ in pregnant women, nor relevant epidemiological data.

Consequently, ECONAZOLE SANDOZ should not be used during the first trimester of pregnancy, unless the physician considers it essential for the mother.

ECONAZOLE SANDOZ may be used during the second and third trimesters, if the potential benefit to the mother outweighs the possible risks to the foetus.

Breast-feeding

After oral administration of econazole nitrate to lactating rats, econazole and/or its metabolites were excreted into the milk and were found in the pups.

It is not known whether cutaneous application of ECONAZOLE SANDOZ can result in sufficient systemic absorption of econazole to produce detectable amounts in breast milk. Caution should be exercised when ECONAZOLE SANDOZ is used by mothers who are breastfeeding. Do not apply to the breasts during breastfeeding.

The safety of ECONAZOLE SANDOZ, all forms combined, was evaluated in 470 patients who participated in 12 clinical trials treated either with the powder form for cutaneous application (8 clinical trials), or with the emulsion form (4 clinical trials). The most frequently reported adverse reactions were: pruritus (1,3 %), burning sensation (1,3 %), pain (1,1 %).

Adverse reactions reported during clinical trials and since the marketing of ECONAZOLE SANDOZ, all forms combined, are classified by System Organ Class and by frequency using the following categories: very common (≥ 1/10), common (≥ 1/100 to < 1/10), uncommon (≥ 1/1 000 to < 1/100), rare (≥ 1/10 000 to < 1/1 000), very rare (< 1/10 000), frequency not known (cannot be estimated from the available data).

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals should report any suspected adverse reactions via the national reporting system: National Agency for the Safety of Medicines and Health Products (ANSM) and the network of Regional Pharmacovigilance Centres - Website: https://signalement.social-sante.gouv.fr/.

No cases of overdose have been reported to date.

Treatment:

ECONAZOLE SANDOZ must be used only topically.

In case of accidental inhalation of ECONAZOLE SANDOZ 1 POUR CENT, powder for cutaneous application containing talc, there is a risk of airway obstruction, particularly in infants and young children. Respiratory arrest must be treated in an intensive care unit and requires administration of oxygen. If breathing is compromised, tracheal intubation, removal of the inhaled material, and artificial ventilation should be considered.

In case of accidental ingestion, treatment will be symptomatic.

If this medicine is accidentally applied to the eyes, rinse with clear water or a saline solution and consult a doctor if symptoms persist.

Pharmacotherapeutic class: ANTIFUNGAL FOR TOPICAL USE – IMIDAZOLE AND TRIAZOLE DERIVATIVES, ATC code: D01AC03.

Mechanism of action

Econazole nitrate is an imidazole derivative with antifungal and antibacterial activity.

The antifungal activity has been demonstrated in vitro and is exerted against the agents responsible for cutaneous and mucosal mycoses:

• dermatophytes (Trichophyton, Epidermophyton, Microsporum),

• candida and other yeasts,

• malassezzia furfur (agent of Pityriasis Capitis and of Pityriasis Versicolor),

• moulds and other fungi.

The antibacterial activity has been demonstrated in vitro against Gram-positive bacteria.

Its mechanism of action, which differs from that of antibiotics, operates at several levels: membrane (increased permeability), cytoplasmic (inhibition of oxidative processes at the level of the mitochondria), nuclear (inhibition of RNA synthesis).

• activity on Corynebacterium minutissimum (erythrasma),

• actinomycetes.

The experiments in vivo performed in healthy volunteers (with or without occlusive dressing) showed that econazole nitrate penetrated the deepest dermal cell layers. In the upper layers of the dermis and in the epidermis, econazole nitrate reaches fungicidal concentrations. Econazole nitrate accumulates in large amounts in the stratum corneum and remains there for 5 to 16 hours. The stratum corneum thus acts as a reservoir.

The rate of systemic absorption is approximately between 0,5% and 2% of the applied dose.

Transcutaneous passage may be increased on damaged skin.

A low neonatal survival rate and fetal toxicity have only been reported in cases of maternal toxicity. In animal studies, econazole nitrate showed no teratogenic effect but was fetotoxic in rodents at maternal doses of 20 mg/kg/day subcutaneously and 10 mg/kg/day orally. The transferability of these observations to humans is unknown.

3 years.

No special precautions for storage.

Any unused medicinal product or waste material should be disposed of in accordance with local requirements.