Dapsone: Difference between revisions

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== Background ==
==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 13:14, 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