Ceftriaxone Sodium: Broad - Spectrum Antibiotic for Severe Infections

Mechanism of Action

Ceftriaxone sodium is a third-generation cephalosporin antibiotic that exerts its bactericidal effect by inhibiting bacterial cell wall synthesis. It binds to penicillin-binding proteins (PBPs), which are essential enzymes involved in the final stages of cell wall assembly. By disrupting the cross-linking of peptidoglycan chains, ceftriaxone weakens the bacterial cell wall, leading to cell lysis and death.

Uses

Ceftriaxone sodium injection is indicated for the treatment of a wide range of bacterial infections, including:

• Respiratory tract infections (e.g., pneumonia, bronchitis)
• Urinary tract infections (e.g., cystitis, pyelonephritis)
• Gastrointestinal infections (e.g., enteritis, peritonitis)
• Skin and soft tissue infections (e.g., cellulitis, abscesses)
• Bacterial meningitis
• Septicemia (bloodstream infections)
• Bone and joint infections
• Gonorrhea.

Dosage and Administration

Adults:

• The usual daily dose is 1 to 2 grams, given once daily or in divided doses every 12 hours. The total daily dose should not exceed 4 grams.
• For preoperative use (surgical prophylaxis), a single dose of 1 gram administered intravenously ½ to 2 hours before surgery is recommended.
• Children:
• For children, the dosage is typically 50 to 75 mg/kg/day, divided into doses every 12 hours. For meningitis, the recommended dose is 100 mg/kg/day, divided into doses every 12 hours.
• Neonates:
• In neonates, the dose is usually 20 to 50 mg/kg/day, divided into doses every 12 hours.
• Administration:
• Ceftriaxone can be administered intravenously or intramuscularly. For intravenous administration, it should be infused over a period of 30 minutes. When administering to neonates, a 60-minute infusion is recommended to reduce the risk of bilirubin encephalopathy.
• Important Notes:
• Ceftriaxone should not be mixed with calcium-containing solutions due to the risk of precipitation and potential for severe adverse effects, such as bilirubin encephalopathy in neonates.
• No dosage adjustment is necessary for patients with renal or hepatic impairment.

Storage

Ceftriaxone sodium injection should be stored at room temperature, typically between 15°C and 30°C (59°F to 86°F). It should be protected from freezing and kept in a dry place.