Content Details
Reviewed By
Writing in Medical Sciences, Medical Writing, Advanced PG Diploma in Clinical Research
Last updated on:
16 Jan 2019 | 05:15 PM (IST)
Want to know more?
Read Our Editorial Policy

Rifaximax 550 mg Tablet


Uses of Rifaximax Tablet

Rifaximax 550 mg Tablet is used for hepatic encephalopathy.

Rifaximax Tablet side effects

  • Vomiting
  • Headache
  • Dizziness
  • Nausea

How to use Rifaximax Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Rifaximax 550 mg Tablet may be taken with or without food, but it is better to take it at a fixed time.

How Rifaximax Tablet works

Rifaximax 550 mg Tablet is an antibiotic. It works by killing the ammonia-producing bacteria in the digestive tract. This treats your infection and relieves symptoms of hepatic encephalopathy (agitation, confusion, muscle problems). This also helps reduce the recurrence of episodes of hepatic encephalopathy.

Rifaximax Tablet related warnings

Interaction with alcohol is unknown. Please consult your doctor.
Rifaximax 550 mg Tablet may be unsafe to use during pregnancy.
Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor.
Rifaximax 550 mg Tablet is probably safe to use during lactation. Limited human data suggests that the drug does not represent a significant risk to the baby.
Rifaximax 550 mg Tablet does not usually affect your ability to drive.
Rifaximax 550 mg Tablet is probably safe to use in patients with kidney disease. Limited data available suggests that dose adjustment of Rifaximax 550 mg Tablet may not be needed in these patients. Please consult your doctor.
Rifaximax 550 mg Tablet should be used with caution in patients with severe liver disease. Dose adjustment of Rifaximax 550 mg Tablet may be needed. Please consult your doctor.

What if you miss a dose of Rifaximax Tablet?

If you miss a dose of Rifaximax 550 mg Tablet, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.

Alternate Brands

For informational purposes only. Consult a doctor before taking any medicines.
Rifaximax 550 mg Tablet
Rifagut 550 Tablet
Sun Pharmaceutical Industries Ltd
18% costlier
29% costlier
Sibofix 550 Tablet
Dr Reddy's Laboratories Ltd
23% costlier
27% costlier
Gutwin 550 Tablet
Win-Medicare Pvt Ltd
3% costlier

Expert Advice

  • Rifaximax 550 mg Tablet 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 Rifaximax 550 mg Tablet and inform your doctor if you have severe diarrhea during or after using Rifaximax 550 mg Tablet.
  • Finish the full course of the medication, even if you feel better.

Patient Concerns

Questions Related to Rifaximax

hepatic encephalopathy fro 12 October
Dr. Saurav Arora
Dear sir as your case is a chronic case it requires long case taking, examination and regular follow up, therefore, please visit a homeopath so that he can examine you and guide you accordingly.
Jaundice liver cirrhosis. Hepatic encephalopathy and ascites not edema with Sodium 107. Can we use tolvaptone?
Dr. Gurpreet Singh
General Physician
Sir consult a hepatologist
Do you have any questions related to Rifaximax 550 mg Tablet?

User Feedback


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

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

Q. How long does Rifaximax takes to work?

Usually, Rifaximax 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 Rifaximax.

Q. Does Rifaximax cause constipation?

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

Related Products

Disclaimer: 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover all possible side effects, drug interactions or warnings or alerts. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.
  1. Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 1215-16.
Manufacturer/Marketer Address
Office No. 5119, 5th Floor, 'D' Wing, Oberoi Garden Estates, Chandivili, Andheri (E), Mumbai - 400 072.
10 tablets in 1 strip