Cefadroxil
Mechanism :
Cefadroxil is a semisynthetic first-generation cephalosporin antibiotic more effective against gram positive bacteria intended for oral administration for skin infections and respiratory tract infections. Cephalosporins are bactericidal because of their inhibition of cell-wall synthesis.
Indication :
- Respiratory tract infections
- Pyoderma
- Otitis media
- Pyelonephritis
- Cystitis
- Urethritis
Contraindications :
Cefadroxil is contraindicated in patients with known allergy to the cephalosporin group of antibiotics.
Dosing :
Oral
30 mg/kg/24 hours in 2 divided doses for 10 days. Max: 1 gm/dose.
Endocarditis prophylaxis:
50 mg/kg 1 hour before procedure (dental) orally. Max: 2 g.
Adverse Effect :
Pseudomembranous colitis, dyspepsia, nausea and vomiting, diarrhea, rash, urticaria, angioedema, pruritus, hepatic dysfunction, moderate transient neutropenia, fever, agranulocytosis, thrombocytopenia, erythema multiforme, Stevens-Johnson syndrome, serum sickness, arthralgia.
Interaction :
Cephalosporin: Positive direct Coombs tests have been reported during treatment with the cephalosporin antibiotics.
Probenecid: Prolongs serum penicillin levels by slowing the rate of excretion by competitively inhibiting renal tubular secretion.
Renal Dose :
Dose in Renal Impairment GFR (mL/min)
20-50 | Dose as in normal renal function |
10-20 | Dose as in normal renal function |
<10 | 500 mg – 1 g every 24 hours |
Dose in Patients undergoing Renal Replacement Therapies
CAPD | Not dialysed. Dose as in GFR<10 mL/min |
HD | Dialysed. Dose as in GFR<10 mL/ min |
HDF/High flux | Dialysed. Dose as in GFR<10 mL/ min |
CAV/VVHD | Unknown dialysability. Dose as in normal renal function |
Hepatic Dose :
No dosage adjustments are recommended.