Rifampin: Difference between revisions
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== Background == |
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* Inhibits bacterial DNA-dependent RNA polymerase |
* Inhibits bacterial DNA-dependent RNA polymerase |
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* Never given alone due to rapid resistance |
* Never given alone due to rapid resistance |
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== Dosing == |
== Dosing == |
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== Safety == |
== Safety == |
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=== Adverse Effects === |
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* Orange or red discoloration of body fluids |
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* Drug-drug interactions |
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* Flu-like syndrome<ref>Dhhar G, McColl J, Kitai I, Levy DM, Verstegen RHJ. Rifampin-induced flu-like syndrome with shock in a patient with tuberculosis infection. <abbr>''CMAJ.''</abbr> 2023;195(34):E1151-E1153. DOI: [https://doi.org/10.1503/cmaj.230317 10.1503/cmaj.230317]</ref>, a type III [[hypersensitivity reaction]] characterized by fevers, chills, myalgias, and arthalgias usually 1-4 hours (but up to 12 hours) after a dose, and lasts for 8 hours; if rechallenged, can develop hypotension and shock |
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=== Drug-Drug Interactions === |
=== Drug-Drug Interactions === |
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Revision as of 17:29, 10 December 2023
Background
- Inhibits bacterial DNA-dependent RNA polymerase
- Never given alone due to rapid resistance
Dosing
- As adjunct to fluoroquinolone for Staphylococcus aureus:
- Weight <60 kg: 600 mg p.o. daily
- Weight >60 kg: 450 mg p.o. twice daily
Safety
- Avoid in liver failure
Adverse Effects
- Orange or red discoloration of body fluids
- Drug-drug interactions, rash, hepatitis, influenza-like illness, neutropenia, and thrombocytopenia
- Drug-drug interactions
- Flu-like syndrome[1], a type III hypersensitivity reaction characterized by fevers, chills, myalgias, and arthalgias usually 1-4 hours (but up to 12 hours) after a dose, and lasts for 8 hours; if rechallenged, can develop hypotension and shock
Drug-Drug Interactions
- Multiple
- Other antibiotics include clindamycin, doxycycline, linezolid, moxifloxacin, trimethoprim, and fusidic acid
- ↑ Dhhar G, McColl J, Kitai I, Levy DM, Verstegen RHJ. Rifampin-induced flu-like syndrome with shock in a patient with tuberculosis infection. CMAJ. 2023;195(34):E1151-E1153. DOI: 10.1503/cmaj.230317
References
- ^ Gousia Dhhar, Jeanine McColl, Ian Kitai, Deborah M. Levy, Ruud H.J. Verstegen. Rifampin-induced flu-like syndrome with shock in a patient with tuberculosis infection. Canadian Medical Association Journal. 2023;195(34):E1151-E1153. doi:10.1503/cmaj.230317.
