Treatment of Group G Streptococcal Pharyngitis

First-Line Treatment Options

The American Academy of Pediatrics recommends penicillin V 250 mg twice or three times daily for children, or 250 mg three to four times daily (or 500 mg twice daily) for adolescents and adults, administered for 10 days 1
The Infectious Diseases Society of America suggests amoxicillin 50 mg/kg once daily (maximum 1000 mg) for 10 days, often preferred in young children due to better palatability and simplified once-daily dosing 1
The full 10-day course of antibiotic treatment is essential for bacterial eradication and prevention of complications 1
Benzathine penicillin G is recommended as a single dose of 600,000 units for patients <27 kg or 1.2 million units for patients ≥27 kg 2, 1

The American Academy of Allergy, Asthma, and Immunology recommends first-generation cephalosporins (e.g., cephalexin 20 mg/kg per dose twice daily, maximum 500 mg per dose) for 10 days in patients with non-anaphylactic allergy to penicillin 1, 4
Clindamycin is recommended at 7 mg/kg per dose three times daily (maximum 300 mg per dose) for 10 days in patients with anaphylactic allergy to penicillin 1, 4

The Infectious Diseases Society of America suggests retreating with any appropriate first-line agent for the first recurrence of Group G streptococcal pharyngitis 5, 2
For multiple recurrences, consider whether the patient is a chronic carrier experiencing viral infections rather than true recurrent bacterial infections 2, 1
Clindamycin is recommended at 20-30 mg/kg/day for children or 600 mg/day in 2-4 divided doses for adults, for 10 days, for documented multiple recurrences 6

The American Academy of Pediatrics recommends acetaminophen or NSAIDs for moderate to severe symptoms or fever control 1, 7
Aspirin should be avoided in children due to the risk of Reye syndrome 1, 7
Corticosteroids are not recommended for routine use in symptomatic management 1, 7

The Infectious Diseases Society of America emphasizes the importance of diagnostic confirmation through throat culture, as rapid antigen detection tests are designed for Group A streptococcus and will not detect Group G 3, 5
Incomplete treatment courses can lead to treatment failure, and routine post-treatment cultures are not recommended for asymptomatic patients who completed therapy 1, 3, 5
Penicillin remains the preferred treatment due to its narrow spectrum, proven efficacy, safety, and low cost 3, 5, 1