Adults & childn >12 yr 1-2 g IV/IM once daily.
Severe cases or infections caused by moderately sensitive organisms May be increased to 4 g once daily.
Gonorrhea 250 mg as single IM dose.
Childn & infants (15 days to 12 yr) 20-80 mg/kg once daily.
Bacterial meningitis 100 mg/kg once daily. Max: 4 g. Duration:
N. meningitidis: 4 days;
H. influenzae: 6 days;
S. pneumoniae: 7 days.
Childn ≥50 kg ≥50 mg/kg given by IV infusion over at least 30 min.
Neonate (w/in 14 days) 20-50 mg/kg daily. Max: 50 mg/kg.
Elderly Adult dose.