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Rifampin

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Usual Diluents

D5W, NS

Standard Dilutions [Amount of drug] [Infusion volume] [Infusion rate]

Preparation of Solution for IV Infusion:
Reconstitute the lyophilized powder by transferring 10 mL of sterile water for injection to a vial containing 600 mg of rifampin for injection. Swirl vial gently to completely dissolve the antibiotic.
[Vial stability] The reconstituted solution contains 60 mg rifampin per mL and is stable at room temperature for up to 30 hours. Prior to administration, withdraw from the reconstituted solution a volume equivalent to the amount of rifampin calculated to be administered and add to 500 mL of infusion medium. Mix well and infuse at a rate allowing for complete infusion within 3 hours. Alternatively, the amount of rifampin calculated to be administered may be added to 100 mL of infusion medium and infused in 30 minutes.

[Admixture stability] Dilutions in dextrose 5% for injection (D5W) are stable at room temperature for up to 8 hours and should be prepared and used within this time. Precipitation of rifampin from the infusion solution may occur beyond this time. Dilutions in normal saline are stable at room temperature for up to 6 hours and should be prepared and used within this time. Other infusion solutions are not recommended. [July 2018]

Standard Dilutions [Amount of drug] [Infusion volume] [Infusion rate]
[600 mg] [500 ml] [3 hours]

Minimum dilution:
[300 - 600mg] [100 ml] [30 minutes]

Stability / Miscellaneous

DOSAGE AND ADMINISTRATION
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Rifampin can be administered by the oral route or by IV infusion. IV doses are the same as those for oral.

Tuberculosis
Adults: 10 mg/kg, in a single daily administration, not to exceed 600 mg/day, oral or IV.
Pediatric Patients: 10–20 mg/kg, not to exceed 600 mg/day, oral or IV.

Meningococcal Carriers
Adults: For adults, it is recommended that 600 mg rifampin be administered twice daily for two days.
Pediatric Patients: Pediatric patients 1 month of age or older: 10 mg/kg (not to exceed 600 mg per dose) every 12 hours for two days.
Pediatric patients under 1 month of age: 5 mg/kg every 12 hours for two days.

STABILITY:
=======================================
Dilutions in dextrose 5% for injection (D5W) are stable at room temperature for up to 8 hours and should be prepared and used within this time. Precipitation of rifampin from the infusion solution may occur beyond this time. Dilutions in normal saline are stable at room temperature for up to 6 hours and should be prepared and used within this time. Other infusion solutions are not recommended. [July 2018]

PREPARATION of Solution for IV Infusion :
=======================================
Reconstitute the lyophilized powder by transferring 10 mL of sterile water for injection to a vial containing 600 mg of rifampin for injection. Swirl vial gently to completely dissolve the antibiotic. The reconstituted solution contains 60 mg rifampin per mL and is stable at room temperature for up to 30 hours. Prior to administration, withdraw from the reconstituted solution a volume equivalent to the amount of rifampin calculated to be administered and add to 500 mL of infusion medium. Mix well and infuse at a rate allowing for complete infusion within 3 hours. Alternatively, the amount of rifampin calculated to be administered may be added to 100 mL of infusion medium and infused in 30 minutes.

Source: [package insert]

Rifampin 

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