Difference between revisions of "Dapsone"

(Text replacement - "0 mg" to "0mg")
(Adult Dosing)
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**Off label use
**Off label use
*PCP tx: 100mg PO qd x21 days
*PCP treatment: 100mg PO qd x21 days
**Not 1st-line agent; use with trimethoprim
**Not 1st-line agent; use with trimethoprim
**Off label use
**Off label use

Revision as of 02:58, 29 September 2016


  • Type: Antibiotic
  • Dosage Forms: 25,100
  • Routes of Administration: Oral

Adult Dosing

  • Hansen disease (leprosy)
    • paucibacillary: 100mg PO qd x6mo
      • Use with rifampin
    • multibacillary: 100mg PO qd x12mo
      • Use with rifampin, clofazimine
  • Dermatitis herpetiformis: 50mg PO qd
  • PCP prophylaxis: 100mg/day PO divided qd-bid
    • Off label use
  • PCP treatment: 100mg PO qd x21 days
    • Not 1st-line agent; use with trimethoprim
    • Off label use
  • Malaria suppression: 100mg PO qwk
    • Use with pyrimethamine
    • Off label use

Pediatric Dosing

Special Populations

Renal Dosing

  • No adjustment

Hepatic Dosing

  • Caution advised with hepatic impairment
  • CBC qwk x4, qmo x6, then q6mo thereafter
  • LFTs at baseline, then periodically


  • Allergy to class/drug
  • caution if renal or hepatic impairment
  • caution if impaired cardiovascular function

Adverse Reactions


  • anemia, hemolytic
  • aplastic anemia
  • agranulocytosis
  • exfoliative dermatitis
  • erythema multiforme
  • toxic epidermal necrolysis


  • fever
  • myalgia
  • headache
  • rigors
  • fatigue
  • malaise
  • dizziness


  • Half-life: 28 hrs
  • Metabolism: Liver, CYP450
  • Excretion: Urine

Mechanism of Action


See Also