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Rifapentine
Aka: Rifapentine, Priftin
- Class
- Rifamycin
- Inhibits bacterial RNA polymerase
- Mechanism
- Long-acting Rifampin derivative
- Dosing
- Tuberculosis
- Part of multi-drug regimen; high risk of drug resistance Tb if used alone
- Rifapentine 600 mg orally twice weekly for 2 months then once weekly for 4 months
- Latent Tuberculosis
- Combination of both Isoniazid (INH) and Rifapentine both weekly for 12 weeks
- Each dose must be physician observed (due to risk of drug resistant Tuberculosis if stopped early)
- Protocol
- Rifapentine (Priftin) 900 mg weekly for 12 weeks AND
- Isoniazid (INH) 900 mg weekly for 12 weeks
- Sterling (2011) N Engl J Med 365:2155-2166
- Adverse Reactions
- Hyperuricemia
- Body secretion discoloration (orange to brown)
- Discolors urine and contact lenses
- Hepatotoxicity
- Thrombocytopenia
- Drug Interactions
- See Rifampin