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Xifaxan

Xifaxan Dosage

Robert Chad Hakim, PharmD, BCCCPCydnee Ng, PharmD
Reviewed by Robert Chad Hakim, PharmD, BCCCP, Cydnee Ng, PharmD
Last reviewed on May 26, 2026

The average cost for 42 tablets of 550mg of Xifaxan is $2,717.43 with a free GoodRx coupon. This is 25.94% off the average retail price of $3,668.99.

tabletTablet

Dosage

Quantity

Price as low as

Price per unit

200mg

9 tablets

$119.24

$13.25

550mg

42 tablets

$2,717.43

$64.70

Typical dosage for Xifaxan

  • Travelers' diarrhea: The typical dose is 200 mg by mouth three times a day for 3 days.
  • Hepatic encephalopathy (HE): The typical dose is 550 mg by mouth twice a day.
  • Irritable bowel syndrome with diarrhea (IBS-D): The typical dose is 550 mg by mouth three times a day for 2 weeks. If your symptoms come back, your prescriber might have you take the same treatment again. Your can repeat this treatment up to 2 times.
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