AntibioticDose/dosageDosing frequencyDuration of therapyCost (generic)*
Penicillin V (Veetids)Child: 250 mgTwo or three times daily10 days$ 1.50 (1.00 to 1.25)
Adult: 500 mgTwo or three times daily10 days2.50 (1.75 to 2.00)
Penicillin G benzathine (Bicillin L-A)Child: 600,000 unitsSingle injection10.25
Adult: 1,200,000 unitsSingle injection17.75
Amoxicillin (Amoxil)Child: 40 mg per kg per dayThree divided doses10 days5.25 (6.00 to 6.75)†
Adult: 500 mgThree times daily10 days16.50 (11.75 to 17.50)
Erythromycin ethylsuccinate (E.E.S. 400)Child: 40 mg per kg per dayTwo to four divided doses10 days8.50 (11.00 to 12.25)‡
Adult: 400 mgFour times daily10 days9.25 (11.00 to 12.50)
Erythromycin estolateChild: 20 to 40 mg per kg per dayTwo to four divided doses10 days(15.00to31.50)§
Adult: not recommended
Azithromycin (Zithromax)Child: 12 mg per kg for 5 days [ corrected]Once daily5 days28.50∥
Adult: 500 mg on day 1; 250 mg on days 2 through 5Once daily5 days40.50
Amoxicillin-clavulanate potassium (Augmentin)Child: 40 mg per kg per dayTwo or three divided doses10 days45.75¶
Adult: 500 to 875 mgTwo times daily10 days71.25
Cefadroxil (Duricef)Child: 30 mg per kg per dayTwo divided doses10 days32.00†
Adult: 1 gOnce daily10 days162.50 (73.50 to 143.00)
Cephalexin (Keflex) (Keftab)Child: 25 to 50 mg per kg per dayTwo to four divided doses10 days35.00 (11.25 to 26.00)†
Adult: 500 mgTwo times daily10 days65.50 (9.25 to 23.50)