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Rifampin

Rifampin Dosage

Aileen Chu, PharmD, BCPSAllison Gourley, PharmD
Reviewed by Aileen Chu, PharmD, BCPS, Allison Gourley, PharmD
Last reviewed on June 15, 2023

The average cost for 60 capsules of 300mg of Rifampin is $38.99 with a free GoodRx coupon. This is 65.28% off the average retail price of $112.31.

capsuleCapsule

Dosage

Quantity

Price as low as

Price per unit

300mg

60 capsules

$38.99

$0.65

150mg

60 capsules

$35.60

$0.59

vialVial

Dosage

Quantity

Price as low as

Price per unit

600mg

1 vial

$46.42

$46.42

Typical dosage for Rifampin

Tuberculosis

Your provider will calculate the dose of Rifampin based on your age and body weight. They'll also prescribe other tuberculosis medications to take along with Rifampin. Your provider will let you know how long your treatment will last, but it'll usually take 4 months or longer.

  • Adults: The typical dose is 10 mg/kg (up to 600 mg) once a day.
  • Children: The typical dose is 10 mg/kg to 20 mg/kg (up to 600 mg) once a day.

Meningococcal bacteria in the nose and/or throat

  • Adults: The recommended dose is 600 mg by mouth twice daily for 2 days.
  • Children: The recommended dose ranges from 5 mg/kg to 10 mg/kg (up to 600 mg per dose), depending on your child's age. They'll take this medication by mouth every 12 hours for 2 days.

Rifampin is also available as an infusion through the veins given by a healthcare provider in the hospital setting.

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