Generic name: RIFAMPIN 300mg, ISONIAZID 150mg
Dosage form: capsule
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In general, therapy should be continued until bacterial conversion and maximal improvement have occurred.
Adults: Two Rifampin and Isoniazid Capsules, USP (600 mg rifampin, 300 mg isoniazid) once daily, administeredone hour before or two hours after a meal.
Concomitant administration of pyridoxine (B6) is recommended in the malnourished, in those predisposed toneuropathy (e.g., diabetic), and in adolescents.
Susceptibility Testing, Rifampin
Rifampin susceptibility powders are available for both direct and indirect methods of determining the susceptibility of strains of mycobacteria. The MIC's of susceptible clinical isolates when determined in 7H10 or other non-eggcontainingmedia have ranged from 0.1 to 2 mcg/mL. Quantitative methods that require measurement of zonediameters give the most precise estimates of antibiotic susceptibility. One such procedure has been recommendedfor use with discs for testing susceptibility to rifampin. Interpretations correlate zone diameters from the disc testwith MIC (minimal inhibitory concentration) values for rifampin.
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- Drug class: antituberculosis combinations
Other brands: Rifamate