Once-daily amoxicillin for pharyngitis
Megan Andrews1, Michelle Condren
1University of Oklahoma College of Pharmacy.
Insights
A once-daily antibiotic regimen for group A β-hemolytic streptococcal pharyngitis (GABHS) improves patient compliance and prevents rheumatic fever. Amoxicillin offers an effective and cost-efficient once-daily treatment option.
Area of Science:
- Infectious Diseases
- Pharmacology
- Pediatrics
Background:
- Group A β-hemolytic streptococcal pharyngitis (GABHS) can lead to rheumatic fever, a serious complication.
- Current treatment guidelines often involve multiple daily antibiotic doses, potentially impacting patient adherence.
- Improving compliance is crucial for effective GABHS treatment and secondary prevention of rheumatic fever.
Purpose of the Study:
- To evaluate the efficacy and compliance of a once-daily antibiotic regimen for GABHS.
- To assess the cost-effectiveness of once-daily amoxicillin compared to other GABHS treatments.
- To support the American Heart Association's recommendation for once-daily amoxicillin.
Main Methods:
- Review of existing literature and FDA-approved once-daily GABHS treatments.
- Comparative analysis of antibiotic costs and dosing frequencies.
- Assessment of amoxicillin's efficacy in once-daily regimens versus conventional dosing.
Main Results:
- Once-daily amoxicillin is a cost-effective option for GABHS treatment.
- Alternative once-daily antibiotics (azithromycin, cefadroxil, etc.) are available but more expensive.
- Once-daily amoxicillin demonstrates comparable efficacy to multiple daily dosing regimens.
Conclusions:
- Once-daily amoxicillin is an effective and affordable strategy for treating GABHS.
- This regimen enhances patient compliance and aids in rheumatic fever prevention.
- Amoxicillin's once-daily dosing presents a viable alternative to conventional penicillin treatments.
Abstract:
A once-daily antibiotic regimen for group A β-hemolytic streptococcal pharyngitis (GABHS) could improve compliance and be effective in the prevention of rheumatic fever, a dangerous complication of untreated or poorly treated GABHS. Amoxicillin is ideal for once-daily dosing due to its low cost. Azithromycin, cefadroxil, ceftibuten, cefixime and extended release amoxicillin are also FDA approved to treat GABHS once daily; however, even when taken for short courses, these antibiotics are more expensive compared with a oncedaily dosing of conventional amoxicillin for 10 days. The American Heart Association recently recommended once-daily amoxicillin dosing when treating GABHS, and amoxicillin has been proven to be effective when dosed once daily, with no obvious disadvantage compared with twice-daily dosing or with conventional penicillin treatment 3 to 4 times daily.
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