click here for details            Keflex   (U.S.N.L.M.)
Dosing: soft tissue infections:
  (preseptal cellulitis, internal
  hordeolum and dacryocystitis)
500mg po q6hr x 5 days¹ (longer if nec)
(This is the adult dose for typical preseptal cellulitis without further systemic signs of
infection) In general the adult dosage ranges from 1 to 4 g daily in divided doses.
Chem Specs cephalexin
Quantities 250mg, 500mg, 750mg capsules. 100, 200ml Bottles (250mg per 5ml)
Cost 8.00/30/500mg
Class 1st generation (moderate spectrum) cephalosporin (ß-lactam antibiotic)
Action ß-lactam antibiotic - inhibits synthesis of bacterial cell wall.
Usage Indicated for the treatment of skin structure and other infections caused by
Staphylococcus aureus, Streptococcus pyogenes and other organisms.
Poor gram-negative coverage. Can cause a vitamin K deficiency.
Contraindications Known allergy to the cephalosporins.   Possible penicillin cross-reactivity.
(Consider Bactrim DS when MRSA is suspected and when cephalosporins and
penicillin are contraindicated.)
Pediatric use Safety and effectiveness established in specific dosages. (See package insert )
Pregnancy Category B
No activity against Pseudomonas, enterococci, methicillin-resistant staphylococci,
Acinetobacter, Enterobacter, or Serratia.
1. Practice Guidelines for the Diagnosis and Management of Skin and Soft Tissue Infections: IDSA.