Could you reformat the previously provided antibiotics reference table into a bullet‑point list for improved readability?

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Last updated: October 25, 2026 • View editorial policy

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Reformatted Antibiotic List for Group A Streptococcal Pharyngitis

I understand you're requesting a reformatted version of a previously provided antibiotics table. Since I don't have access to the original table you're referring to, I'll provide a comprehensive list-based format for Group A Streptococcal (GAS) pharyngitis treatment based on the most current IDSA guidelines 1, 2.

For Patients WITHOUT Penicillin Allergy:

First-Line Options (Strong, High Quality Evidence):

Oral Penicillin V 1, 3, 2

  • Children: 250 mg twice or three times daily
  • Adolescents/Adults: 250 mg four times daily OR 500 mg twice daily
  • Duration: 10 days

Oral Amoxicillin 1, 3, 2

  • Dosing: 50 mg/kg once daily (maximum 1,000 mg)
  • Alternative: 25 mg/kg twice daily (maximum 500 mg per dose)
  • Duration: 10 days

Intramuscular Benzathine Penicillin G 1, 3, 2

  • <27 kg (60 lb): 600,000 units
  • ≥27 kg (60 lb): 1,200,000 units
  • Single dose administration

For Patients WITH Penicillin Allergy:

Non-Immediate Hypersensitivity (Strong, High Quality Evidence):

Oral Cephalexin 1, 2

  • Dosing: 20 mg/kg per dose twice daily (maximum 500 mg per dose)
  • Duration: 10 days
  • Caution: Avoid in immediate (Type I) hypersensitivity to penicillin

Oral Cefadroxil 1, 2

  • Dosing: 30 mg/kg once daily (maximum 1 g)
  • Duration: 10 days
  • Caution: Avoid in immediate (Type I) hypersensitivity to penicillin

Immediate Hypersensitivity or Cephalosporin Intolerance:

Oral Clindamycin (Strong, Moderate Quality Evidence) 1, 2

  • Dosing: 7 mg/kg per dose three times daily (maximum 300 mg per dose)
  • Duration: 10 days

Oral Azithromycin (Strong, Moderate Quality Evidence) 1, 2

  • Dosing: 12 mg/kg once daily (maximum 500 mg)
  • Duration: 5 days
  • Important: Geographic and temporal resistance variation exists

Oral Clarithromycin (Strong, Moderate Quality Evidence) 1, 2

  • Dosing: 7.5 mg/kg per dose twice daily (maximum 250 mg per dose)
  • Duration: 10 days
  • Important: Geographic and temporal resistance variation exists

Key Clinical Considerations:

Penicillin and amoxicillin remain the drugs of choice due to narrow spectrum, minimal adverse effects, and low cost 1. The 10-day duration is standard for most regimens to ensure pharyngeal eradication and prevent rheumatic fever 1, 3.

Common Pitfall: Macrolide resistance (azithromycin, clarithromycin) varies significantly by geographic region and changes over time 1, 2. Consider local resistance patterns when selecting these agents.

For Pregnant Patients: Azithromycin 1 g orally single dose OR Amoxicillin 500 mg three times daily for 7 days are preferred 3.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.