Oral antibiotics in acne vulgaris: therapeutic response over 5 year
Introduction: Antibiotic resistant P. acnes have influenced acne therapy worldwide resulting in increased use of topical and systemic retinoids. Judicious use of oral antibiotic is important for effective therapeutic outcome.
Objectives: To determine the response and side effects of oral antibiotic treatment in acne vulgaris. To determine the type of antibiotic used, therapy duration and the types of concomitant topical therapy.
Methods: Retrospective analysis of the therapeutic response to oral antibiotics therapy in acne vulgaris in the Dermatology Department, Hospital Kuala Lumpur. New cases of acne vulgaris from 2005 to 2009 were randomly selected. The clinical notes of 250 patients treated with oral antibiotics were reviewed.
Results: About 60% of patients achieved good to excellent response to therapy while satisfactory response was seen in 26%. Only 8% patients experienced minor side effects. Doxycycline was the most frequently prescribed antibiotic, followed by tetracycline and erythromycin ethylsuccinate. The prescribing pattern was consistent over the years. The mean duration of treatment is four to five months. Oral antibiotic was augmented with topical therapy in 98.8% of patients.
Conclusion: Good to excellent therapeutic response was achieved in the majority of patients and results observed have remained stable over the last five years.
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