Amoxicillin-Clavulanate vs Amoxicillin for Sinusitis - Takeaway - MDSpire
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Amoxicillin-Clavulanate vs Amoxicillin for Sinusitis

Amoxicillin-clavulanate was not linked to lower treatment failure but was associated with a slightly higher risk of secondary infections compared with amoxicillin in adults with uncomplicated acute sinusitis.

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  • 1

    Study analyzed over 520,000 patients with acute sinusitis.

  • 2

    Treatment failure rates for amoxicillin-clavulanate and amoxicillin were 3%.

  • 3

    Amoxicillin-clavulanate had a higher rate of secondary infections.

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    Adverse events were similar in both groups.

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    Study supports amoxicillin as first-line treatment.

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    Funded by NIH and CDC.

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    Limitations include observational design and lack of adherence data.

Original Source(s)

Amoxicillin-Clavulanate vs Amoxicillin for Sinusitis

  • by Kathryn Wighton

  • April 20, 2026

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