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    Information about Rifaximin

    Rifaximin uses

    Rifaximin is used in infectious diarrhea and hepatic encephalopathy.

    How rifaximin works

    Rifaximin is an antibiotic. In hepatic encephalopathy, it works by killing the ammonia-producing bacteria thereby relieving symptoms such as agitation, confusion, and muscle problems. In infectious diarrhea, it works by stopping the growth of bacteria that cause diarrhea.

    Common side effects of rifaximin

    Vomiting, Headache, Fever, Dizziness, Nausea, Chills
    Content Details
    Written By
    Dr. Radhika Dua
    MDS (Oral Pathology & Microbiology), BDS
    Reviewed By
    Dr. Shilpa Garcha
    MD (Pharmacology), MBBS
    Last updated on:
    16 Jan 2019 | 05:15 PM (IST)
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    Read Our Editorial Policy

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    Expert advice for Rifaximin

    • Rifaximin reduces the risk of overt hepatic encephalopathy (HE) recurrence in patients with liver disease.
    • It may cause reddish discoloration of urine. This is normal and harmless.
    • Stop taking Rifaximin and inform your doctor if you have severe diarrhea during or after using Rifaximin.
    • Finish the full course of the medication, even if you feel better.

    Frequently asked questions for Rifaximin


    Q. Does Rifaximin cause constipation?

    Constipation is a rare side effect of Rifaximin. Please consult your doctor in case you experience intolerable constipation.

    Q. Can I stop taking Rifaximin if I feel better?

    No, do not stop taking Rifaximin before completing the full course of treatment. You will start to feel better before your treatment is complete.

    Q. How long does Rifaximin takes to work?

    Usually, Rifaximin starts to show its effect within 1 hour of its ingestion. However, it may take around 2-3 days to make you feel better while taking Rifaximin.

    Content on this page was last updated on 16 January, 2019, by Dr. Varun Gupta (MD Pharmacology)