Dapsone: Difference between revisions

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== Background ==
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==Background==
   
 
*Diamino-diphenyl sulfone
 
*Diamino-diphenyl sulfone
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*Rifampicin and clofazimine as multidrug therapy (MDT) for the treatment of ''Mycobacterium leprae''
 
*Rifampicin and clofazimine as multidrug therapy (MDT) for the treatment of ''Mycobacterium leprae''
   
== Dosing ==
+
==Dosing==
   
  +
*'''Dermatitis herpetiformis:'''
* '''Dermatitis herpetiformis:''' Start at 50 mg PO daily, increase to 300 mg daily, or higher to achieve full control, reduce to minimum maintenance dosage as soon as possible
 
  +
**Start at 50 mg PO daily, increase to 300 mg daily in 25 mg increments every 1 to 2 weeks, up to 2 mg/kg/dose
* '''PJP prophylaxis (primary or secondary):'''
 
  +
**Pruritus usually improves within 72 hours, and the skin manifestations typically resolve within days
** 100 mg PO once daily or in 2 divided doses as monotherapy
 
  +
**After 2-3 months of gluten-free diet, start tapering by 25 mg every four to six weeks
** Continue until CD4 count >200 cells/mm3 for >3 months
 
 
*'''PJP prophylaxis (primary or secondary):'''
* '''PJP treatment:''' 100 mg PO once daily in combination with [[trimethoprim]] for 21 days
 
 
**100 mg PO once daily or in 2 divided doses as monotherapy
 
**Continue until CD4 count >200 cells/mm3 for >3 months
 
*'''PJP treatment:''' 100 mg PO once daily in combination with [[trimethoprim]] for 21 days
  +
  +
== Safety ==
  +
  +
* Check CBC, liver, and G6PD deficiency before starting
   
 
[[Category:Antibiotics]]
 
[[Category:Antibiotics]]

Revision as of 09:14, 3 March 2021

Background

  • Diamino-diphenyl sulfone

Indications

  • Second-line PJP prophylaxis (CD4 <200)
  • Rifampicin and clofazimine as multidrug therapy (MDT) for the treatment of Mycobacterium leprae

Dosing

  • Dermatitis herpetiformis:
    • Start at 50 mg PO daily, increase to 300 mg daily in 25 mg increments every 1 to 2 weeks, up to 2 mg/kg/dose
    • Pruritus usually improves within 72 hours, and the skin manifestations typically resolve within days
    • After 2-3 months of gluten-free diet, start tapering by 25 mg every four to six weeks
  • PJP prophylaxis (primary or secondary):
    • 100 mg PO once daily or in 2 divided doses as monotherapy
    • Continue until CD4 count >200 cells/mm3 for >3 months
  • PJP treatment: 100 mg PO once daily in combination with trimethoprim for 21 days

Safety

  • Check CBC, liver, and G6PD deficiency before starting