Table 1: Brand names, manufacturers and active principles of all antibiotics analyzed in the study.

Brand names Manufacturers Active principles
 1. Amoxil® 125 mg/5mL GlaxoSmithKline (Mexico) Amoxicillin
 2. Amoxil® 250 mg/5mL GlaxoSmithKline (Mexico) Amoxicillin
 3. Amoxil® 500 mg/5mL GlaxoSmithKline (Mexico) Amoxicillin
 4. Amoxil BD® 200 mg/5mL GlaxoSmithKline (Mexico) Amoxicillin
 5. Amoxil BD® 400 mg/5mL GlaxoSmithKline (Mexico) Amoxicillin
 6. Ampicilina® 250 mg/5mL EMS (S. B. do Campo, SP, Brazil) Ampicillin
 7. Bactrim® (200+40)mg/5mL Roche (Rio de Janeiro, RJ, Brazil) Sulfamethoxazole + Trimethoprim
 8. Bactrim F® (400+80)mg/5mL Roche (Rio de Janeiro, RJ, Brazil) Sulfamethoxazole + Trimethoprim
 9. Ceclor® 250 mg/5mL Sigma Pharma (Hortolândia, SP, Brazil) Cefaclor
 10. Ceclor® 375 mg/5mL Sigma Pharma (Hortolândia, SP, Brazil) Cefaclor
 11. Cefamox® 250 mg/5mL Bristol-Myers Squibb (Barceloneta, Porto Rico) Cefadroxil
 12. Cefamox® 500 mg/5mL Bristol-Myers Squibb (Barceloneta, Porto Rico) Cefadroxil
 13. Cefzil® 250 mg Bristol-Myers Squibb (São Paulo, SP, Brazil) Cefprozil
 14. Clavulin® (125mg+31,25)mg/5mL GlaxoSmithKline (Mexico) Amoxicillin + Potassium Clavulanate
 15.Clavulin® (250+62,5)mg/5mL GlaxoSmithKline (Mexico) Amoxicillin + Potassium Clavulanate
 16. Clavulin BD® (200+28,5)mg/5mL GlaxoSmithKline (Rio de Janeiro, RJ, Brazil) Amoxicillin + Potassium Clavulanate
 17. Clavulin BD® (400 mg+57)mg/5mL GlaxoSmithKline (Worthing, England) Amoxicillin + Potassium Clavulanate
 18. Clavulin® ES (600+42,9)mg/5mL GlaxoSmithKline (Col Romero de Terreros, México) Amoxicillin + Potassium Clavulanate
 19. Eritrex® 125 mg/5mL Aché (Guarulhos, SP, Brazil) Erythromycin
 20. Eritrex® 250 mg/5mL Aché (Guarulhos, SP, Brazil) Erythromycin
 21. Keflex® 250 mg/5mL Lilly (São Paulo, SP, Brazil) Cephalexin
 22. Keflex® 500 mg/5mL Lilly (São Paulo, SP, Brazil) Cephalexin
 23. Klaricid® 25 mg/mL Abbott (Brazil) Clarithromycin
 24. Klaricid® 50 mg/mL Abbott (Brazil) Clarithromycin
 25. Pen-ve-oral® 80.000UI/mL Eurofarma (São Paulo, SP, Brazil) Potassic Phenoxymethylpenicillin
 26. Unasyn® 250 mg/5mL Pfizer (Latina, Italy) Sultamicillin tosylate
 27. Zinnat® 250 mg/5mL GlaxoSmithKline (England) Cefuroxime Axetil
 28. Zitromax® 600 mg Pfizer (Latina, Italy) Azithromycin
 29. Zitromax® 900 mg Pfizer (Latina, Italy) Azithromycin