Meningococcemia Treatment Guidelines

Immediate Antibiotic Therapy

The American College of Physicians recommends starting empiric antibiotics within 60 minutes of hospital arrival, even before lumbar puncture or imaging, as delays in treatment are strongly associated with death and poor outcomes 3
Draw blood cultures immediately, but do not delay antibiotic administration while awaiting results 3

The Infectious Diseases Society of America recommends ceftriaxone 2 grams IV every 12 hours (or cefotaxime 2 grams IV every 6 hours) as primary treatment, continuing for 5 days if the patient has recovered by day 5, and extending treatment duration if clinical response is delayed 1, 2
Benzylpenicillin 2.4 grams IV every 4 hours may be used as an alternative, but ceftriaxone is preferred as it reliably eradicates meningococcal carriage in the oropharynx 1, 2

If ceftriaxone is NOT used for treatment, add ciprofloxacin 500 mg orally as a single dose to eliminate throat carriage, or rifampicin 600 mg orally twice daily for 2 days if ciprofloxacin is contraindicated 1, 2
The Centers for Disease Control and Prevention recommends eradication of carriage to prevent transmission, as no beta-lactams other than ceftriaxone reliably eradicate meningococcal carriage in the oropharynx 1

For meningococcemia WITH meningitis, use the same ceftriaxone regimen (2 grams IV every 12 hours) and continue for 5 days if recovered 1, 2
For patients with penicillin allergy, chloramphenicol 25 mg/kg IV every 6 hours is an alternative 2, 3

Outpatient IV therapy should be considered in patients who are clinically well and afebrile, requiring reliable IV access, completion of at least 5 days of inpatient therapy, and 24-hour access to medical advice 1, 3