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  • Title: Tacrolimus ointment: new preparation. Too many unknowns.
    Journal: Prescrire Int; 2004 Jun; 13(71):86-9. PubMed ID: 15233141.
    Abstract:
    (1) Drug therapy for exacerbations of atopic dermatitis (atopic eczema) should only be considered when simple measures and emollients are inadequate. The first-line option is a topical corticosteroid with a level of potency appropriate for the affected site and the patient's age. (2) Tacrolimus, an immunosuppressant used orally or parenterally to prevent graft rejection, is now marketed in France as an ointment, in two dose strengths, for the treatment of atopic dermatitis. It is approved for use when topical corticosteroids fail, in patients aged at least two years. (3) According to a comparative trial in adults, tacrolimus, when used as a first-line treatment, is no more effective than a class II (strong) topical corticosteroid. Several clinical trials show that it is better than the excipient in both adults and children. The 0.1% strength seems to be slightly more active than the 0.03% strength in adults. (4) It is not known whether tacrolimus is effective after topical corticosteroid failure. (5) In comparative trials the main systemic adverse events in patients using tacrolimus ointment were flu-like syndromes and headache. Local adverse events included burning or pruritus at the site of application in about 50% of patients. These local effects are due to both the excipient and tacrolimus. (6) Severe skin infections and skin cancer cannot be ruled out as serious side effects. (7) Tacrolimus uptake through the skin exposes patients to systemic adverse effects and drug interactions. (8) In practice, patients with atopic dermatitis, however severe, have no reason to use tacrolimus, at least pending studies showing it is effective after topical corticosteroid failure.
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