Doxycycline for Blepharokeratoconjunctivitis in Children

  • Avoid in younger than age 8 due to concern about teeth yellowing and enamel hypoplasia
  • 40-200 mg/day have been used
    • most evidence for 100 mg QD x 3 months or 50 mg QD x 8 months
    • 20 mg tabs BID x 8 weeks may have less side effects
  • Duration: 4 weeks to 8 months
  • Skin: maculopapular and erythematous rash, photosensitivity and lesions
    • Stevens-Johnsons syndrome rare
  • GI: (most common) nausea, emesis, diarrhea, glossitis, esophagitis dysphagia, dyspepsia enterocolitis, rarely pancreatitis
  • Hepatotoxicity, dose related rise in BUN
  • Renal toxicity
  • Blood: hemolytic anemia, thrombocytopenia, neutropenia, eosinophilia
  • CNS: Intracranial hypertension
  • Discolorations: tooth enamel- maybe permanent in primary teeth, reversable in adult teeth. Browning of the thyroid gland (microscopic) without functional problems.
  • Psychiatric: depression, anxiety, suicidal ideation, insomina, hallucinations, abnormal dreams.
  • Supratheraputic INR in those taking coumadin