1. Pharmacology
Cefuroxime Axetil is a cephalosporin antibiotic that works by inhibiting the synthesis of bacterial cell walls. The active form, cefuroxime, binds to penicillin-binding proteins, disrupting cell wall synthesis and leading to bacterial lysis.
2. Indication
Cefuroxime Axetil is used for treating a variety of bacterial infections, including:
-
Upper and lower respiratory tract infections (e.g., otitis media, pharyngitis, bronchitis, pneumonia).
-
Urinary tract infections.
-
Skin and soft tissue infections.
-
Lyme disease (early stages).
-
Gonorrhea.
-
Sinusitis.
3. Dosage & Administration
-
Adults:
-
For mild to moderate infections: 250 mg to 500 mg twice daily.
-
For severe infections: 500 mg to 1,000 mg twice daily.
-
-
Children: The dosage depends on age and weight, typically 20 mg/kg/day in divided doses.
Cefuroxime Axetil should be taken with food to enhance absorption.
4. Interaction
Cefuroxime Axetil may interact with:
-
Probenecid: May increase cefuroxime levels by reducing renal excretion.
-
Anticoagulants: Increased bleeding risk when used together.
-
Oral contraceptives: Potential reduced effectiveness of birth control.
5. Contraindications
-
Hypersensitivity to cephalosporins or penicillins.
-
History of severe allergic reactions to beta-lactam antibiotics.
6. Side Effects
Common side effects include:
-
Gastrointestinal disturbances (e.g., diarrhea, nausea).
-
Allergic reactions (e.g., rash, urticaria).
-
Headache.
-
Dizziness.
-
Elevated liver enzymes.
-
Rarely, severe reactions like anaphylaxis or Stevens-Johnson syndrome.
7. Pregnancy & Lactation
-
Pregnancy: Category B (no evidence of harm in animal studies, but should be used when clearly needed).
-
Lactation: Cefuroxime is excreted in breast milk in low concentrations. It should be used with caution during breastfeeding, considering the potential risk of side effects to the infant.
8. Precautions & Warnings
-
Renal impairment: Dose adjustments may be required in patients with impaired renal function.
-
Diarrhea: Should be used with caution in patients with a history of gastrointestinal disease.
-
Superinfection: Prolonged use may lead to the overgrowth of non-susceptible organisms.
9. Overdose Effects
Symptoms of overdose may include:
-
Gastrointestinal disturbances (e.g., nausea, vomiting).
-
Central nervous system effects (e.g., seizures, confusion).
-
Acute renal failure in severe cases.
Treatment involves supportive care, including hydration and monitoring.
10. Therapeutic Class
-
Antibiotic: Second-generation cephalosporin.
11. Storage Conditions
-
Store at room temperature, away from moisture and heat.
-
Do not freeze.
-
Keep the medication in its original packaging to protect it from light.
12. Chemical Structure
Cefuroxime Axetil is a prodrug of cefuroxime. The chemical structure consists of:
-
A beta-lactam ring (responsible for its antibacterial activity).
-
A cephalosporin nucleus with an acetoxyethyl side chain (which is cleaved after absorption to release the active cefuroxime).
The chemical formula of cefuroxime axetil is C20H22N6O10S3.