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Priftin

Priftin Dosage

Robert Chad Hakim, PharmD, BCCCPAllison Gourley, PharmD
Reviewed by Robert Chad Hakim, PharmD, BCCCP, Allison Gourley, PharmD
Last reviewed on July 19, 2024

The average cost for 24 tablets of 150mg of Priftin is $130.18 with a free GoodRx coupon. This is 10.75% off the average retail price of $145.86.

tabletTablet

Dosage

Quantity

Price as low as

Price per unit

150mg

24 tablets

$130.18

$5.42

Typical dosage for Priftin

Active TB in people age 12 years and older

  • Initial phase: The typical dose is 600 mg (4 tablets) by mouth with food twice a week (separated by at least 3 days) for 2 months. After the first 2 months of treatment, you'll move onto the continuation phase of treatment.
  • Continuation phase: The typical dose is 600 mg (4 tablets) by mouth with food once a week for 4 months.
  • Take Priftin together with other TB antibiotics (e.g., isoniazid, pyrazinamide, ethambutol), as instructed by your prescriber.

Latent TB in people age 2 years and older

  • Take Priftin by mouth with food once per week for 12 weeks (3 months). The dose depends on your weight.
    • Weight of 22 lbs to 30 lbs: The typical dose is 300 mg (2 tablets).
    • Weight of 31 lbs to 55 lbs: The typical dose is 450 mg (3 tablets).
    • Weight of 56 lbs to 70 lbs: The typical dose is 600 mg (4 tablets).
    • Weight of 71 lbs to 110 lbs: The typical dose is 750 mg (5 tablets).
    • Weight greater than 110 lbs: The typical dose is 900 mg (6 tablets).
  • Take Priftin with isoniazid, as instructed by your prescriber.

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