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Prescription requiredZuventus Healthcare LtdAntibiotic

Rifaximax 400 Tablet

Rifaximin (400mg)

₹371MRP ₹391In stock
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Delivery across India. Free above ₹999; ₹49 from ₹499, ₹99 below. Chennai express delivery is chargeable.

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Rifaximax 400 Tablet is used for rifaximax 400 Tablet is used for hepatic encephalopathy.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026

Licensed pharmacyPharmacist-verified orderDelivered across India

Key details

Salt: Rifaximin (400mg)
Available variants: tablet 400mg 10`S
Best price: ₹371 (₹37.14 per tablet)
MRP: ₹391
Prescription: Required
Manufacturer: ZUVENTUS HEALTHCARE LTD`

Ordering notes

Standard delivery across India. No same-day delivery nationally.
Chennai express delivery is possible and chargeable. Learn more
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy

Same salt, lower price

Medicines with the same active ingredient and strength as Rifaximax 400 Tablet.

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Rifaximax 400 Tablet

tablet - 400mg - 10 S

₹371

₹37.14 per tablet

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Compare all substitutes
Same salt, different brand — what does that mean?

A substitute contains the same active ingredient (salt), in the same strength, as Rifaximax 400 Tablet. The medicine inside is the same — the brand name, manufacturer and price are what differ.

All medicines sold in India, branded or generic, must meet the quality standards set by the national drug regulator (CDSCO). A lower price does not mean lower quality.

Please confirm with your doctor or pharmacist before switching brands — they will check that the strength and form match your prescription.

Composition of Rifaximax 400 Tablet

Rifaximax 400 Tablet contains Rifaximin (400mg). It belongs to the Antibacterial agent class of medicines.

Uses of Rifaximax 400 Tablet

Rifaximax 400 Tablet is used for hepatic encephalopathy.

Key benefits

  • Targets infections that other antibiotic groups do not reach

How Rifaximax 400 Tablet works

Rifaximax 400 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.

How to take Rifaximax 400 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 400 Tablet may be taken with or without food, but it is better to take it at a fixed time.

Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.

Missed dose and overdose

If you miss a dose

Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.

If you take too much

An overdose of this medicine can cause vomiting, severe loose motions and nerve symptoms. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.

Side effects of Rifaximax 400 Tablet

Most side effects of Rifaximax are mild and settle as the body adjusts. Reported side effects include:

  • Vomiting Headache Dizziness Nausea

Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.

Safety advice for Rifaximax 400 Tablet

PregnancyRifaximax 400 Tablet may be unsafe to use during pregnancy.<br>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.
BreastfeedingRifaximax 400 Tablet is probably safe to use during lactation. Limited human data suggests that the drug does not represent a significant risk to the baby.
AlcoholInteraction with alcohol is unknown. Please consult your doctor.
DrivingMay cause drowsiness or affect your concentration. Do not drive until you know how it affects you.
KidneyRifaximax 400 Tablet is probably safe to use in patients with kidney disease. Limited data available suggests that dose adjustment of Rifaximax 400 Tablet may not be needed in these patients. Please consult your doctor.
LiverRifaximax 400 Tablet should be used with caution in patients with severe liver disease. Dose adjustment of Rifaximax 400 Tablet may be needed. Please consult your doctor.
Habit formingNo

Warnings and precautions

Finish the whole course even after you feel better. Do not drink any alcohol while taking metronidazole, ornidazole or tinidazole, or for the period after the course that your doctor states — the combination causes severe flushing, vomiting and a racing heart. Report severe or watery loose motions during or after the course rather than treating them yourself. Tetracyclines stain developing teeth and are avoided in young children and in pregnancy. Antibiotics do not work against colds, flu or most sore throats, which are caused by viruses.

Do not take Rifaximax if

Not for anyone with a known allergy to this medicine or to any ingredient in the pack.

Interactions with other medicines

Antacids, iron, zinc and calcium reduce the absorption of tetracyclines — separate them by a couple of hours. Tell your doctor if you take a blood thinner.

How to store Rifaximax 400 Tablet

Store below 30°C in the original pack, away from direct sunlight and moisture. Keep out of the reach of children.

Expert advice for Rifaximax 400 Tablet

<div class="style__desktop-container___1hcBT"><div class="style__desktop-video___2GTR9"><div class="styles__video-img___1rCzR"><div class=""/><div class=""/></div></div><div><div><div><div><div class="ExpertAdviceItem__content___1Djk2"><ul><li>Rifaximax 400 Tablet reduces the risk of overt hepatic encephalopathy (HE) recurrence in patients with liver disease.</li> <li>It may cause reddish discoloration of urine. This is normal and harmless.</li> <li>Stop taking Rifaximax 400 Tablet and inform your doctor if you have severe diarrhea during or after using Rifaximax 400 Tablet .</li> <li>Finish the full course of the medication, even if you feel better.</li></ul></div></div></div></div></div></div>

Manufacturer and class

Manufacturer:
ZUVENTUS HEALTHCARE LTD`
Therapeutic class:
Antibiotic
Drug class:
Antibacterial agent

Substitutes for Rifaximax 400 Tablet

Medicines with the same active ingredient (Rifaximin (400mg)). Ask your doctor or pharmacist before switching brands.

MedicinePackPricevs Rifaximax 400 Tablet
Rifalix 400 Tablet1X10₹30917% cheaper
Ciboz 400 mg TabletZYDUS HEALTHCARE PHARMAtablet · 10`S₹32413% cheaper
Rifaxigress 400 mg TabletLARENONtablet · 10`S₹33510% cheaper
Rifasmart 400 mg TabletMANKIND (PHARMA)tablet · 10`S₹3389% cheaper
Riforte 400 TabletSamarth Life Sciences Pvt Ltdtablet · 10`S₹3584% cheaper
Rifakem 400 mg TabletALKEM LABtablet · 10`S₹4079% more
Rifagut 400 mg TabletSUN PHARMAtablet · 10`S₹42815% more
Dirifa 400 mg TabletAbbott India Limitedtablet · 10`S₹45121% more
Torfix 400 mg TabletTorrent Pharmaceuticals Ltdtablet · 10`S₹45623% more
Sibofix 400 mg TabletDr Reddys Laboratories Ltdtablet · 10`S₹46325% more
Zimigut 400 mg TabletIntas Pharmaceuticals Ltdtablet · 10`S₹50636% more
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Rifaximax 400 Tablet FAQs

What is Rifaximax 400 Tablet used for?
Rifaximax 400 Tablet is commonly used for Rifaximax 400 Tablet is used for hepatic encephalopathy. Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What is the salt in Rifaximax 400 Tablet?
Rifaximax 400 Tablet contains Rifaximin (400mg). If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Rifaximax 400 Tablet?
Take this medicine in the dose and duration as advised by your doctor. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Rifaximax 400 Tablet work?
Rifaximax 400 Tablet is an antibiotic.
Is Rifaximax 400 Tablet a prescription medicine?
Yes. Rifaximax 400 Tablet is a prescription-only (Rx) medicine. Upload a valid prescription from a registered medical practitioner during checkout. We cannot dispense it without a valid Rx.
What are the common side effects of Rifaximax 400 Tablet?
The side effects reported most often with Rifaximax are Vomiting Headache Dizziness Nausea. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Rifaximax 400 Tablet be taken during pregnancy?
Rifaximax 400 Tablet may be unsafe to use during pregnancy.<br>Animal studies have shown adverse effects on the foetus, however, there are limited human studies. Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Rifaximax.
Can I drink alcohol while taking Rifaximax 400 Tablet?
Interaction with alcohol is unknown.
What if I miss a dose of Rifaximax 400 Tablet?
Take it as soon as you remember.
Is Rifaximax 400 Tablet habit forming?
No. Rifaximax 400 Tablet is not known to be habit forming when taken as prescribed.
Is there a cheaper substitute for Rifaximax 400 Tablet?
Rifalix 400 Tablet has the same active ingredient and strength and is listed from ₹309 on PingMeDoc Pharmacy. Ask your doctor or pharmacist before switching brands, the salt is the same, but excipients and release profiles can differ.
How much does Rifaximax 400 Tablet cost on PingMeDoc Pharmacy?
Rifaximax 400 Tablet starts at ₹371 (MRP ₹391) on PingMeDoc Pharmacy. Available in tablet 400mg 10`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Rifaximax 400 Tablet?
Rifaximax 400 Tablet is manufactured by ZUVENTUS HEALTHCARE LTD`. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Rifaximax 400 Tablet delivered?
Rifaximax 400 Tablet is delivered across India via our licensed pharmacy partners. Standard delivery timelines are confirmed at checkout. Chennai customers can opt for chargeable same-city express delivery.

Rifaximax 400 Tablet, Quick facts

Salt
Rifaximin (400mg)
Form
tablet
Best price
₹371 (₹37.14 per tablet)
MRP
₹391
Prescription
Required (Rx)
Schedule
Schedule H
Brand
Zuventus Healthcare Ltd
Manufacturer
ZUVENTUS HEALTHCARE LTD`
Therapeutic class
Antibiotic
Drug class
Antibacterial agent
Habit forming
No
Variants
tablet 400mg 10`S
Delivery
Standard across India

References

The information on Rifaximax 400 Tablet is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.

  1. PingMeDoc clinical monograph library — compiled from Indian package inserts, the Indian Pharmacopoeia
  2. CDSCO schedules and standard pharmacology references. Reviewed for patient readability. This is general information, not a substitute for your doctor's advice.
  3. Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
  4. National List of Essential Medicines (NLEM) 2022, Government of India.
  5. Manufacturer's package insert / prescribing information for Rifaximax 400 Tablet.
  6. World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.

Next steps

Safety disclaimer

Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.