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Prescription requiredGASTRO INTESTINAL

Rifastop 400 mg Tablet

Rifaximin (200mg) + Metronidazole (400mg)

Rifastop 400 mg Tablet is used for treatment of Infectious diarrhea.

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

₹391₹39.08 per tablet
100% genuine medicinesPharmacist-verified orderDelivered across India

Key details

Salt: Rifaximin (200mg) + Metronidazole (400mg)
Available variants: tablet 400 mg 10`S
Best price: ₹391 (₹39.08 per tablet)
Prescription: Required
Manufacturer: PANACEA BIOTEC

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

Composition of Rifastop 400 mg Tablet

Rifastop 400 mg Tablet contains Rifaximin (200mg) + Metronidazole (400mg).

Uses of Rifastop 400 mg Tablet

Treatment of Infectious diarrhea

Key benefits

  • In Treatment of Infectious diarrhea Diarrhea is a condition in which you frequently pass loose
  • watery stools. Rifastop M 200mg/400mg Tablet reduces the frequency of loose motions and also helps you to stay well by preventing them from coming back. It works by killing the microorganisms causing infections as well as prevents them from multiplying. Since diarrhea causes loss of fluid from the body
  • drink plenty of fluids to make sure you stay hydrated.

How Rifastop 400 mg Tablet works

Rifastop 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 Rifastop 400 mg 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. Rifastop M 200mg/400mg Tablet may be taken with or without food.

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

If you miss a dose of Rifastop M 200mg/400mg 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.

If you take too much

Taking more Rifastop than prescribed can be harmful. If you suspect an overdose, contact a doctor or go to the nearest emergency department at once, and carry the pack or strip with you. In India the emergency number is 112.

Side effects of Rifastop 400 mg Tablet

Most side effects of Rifastop 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 Rifastop 400 mg Tablet

PregnancyRifastop 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.
BreastfeedingRifastop 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.
DrivingDriving UNSAFE
KidneyRifastop 400 Tablet is probably safe to use in patients with kidney disease. Limited data available suggests that dose adjustment of Rifastop 400 Tablet may not be needed in these patients. Please consult your doctor.
LiverRifastop 400 Tablet should be used with caution in patients with severe liver disease. Dose adjustment of Rifastop 400 Tablet may be needed. Please consult your doctor.
Habit formingNo

Interactions with other medicines

Tell your doctor or pharmacist about every medicine you take, including over-the-counter products, vitamins and herbal or ayurvedic preparations, before starting Rifastop. Some combinations can change how Rifastop works or raise the chance of side effects.

How to store Rifastop 400 mg Tablet

Store Rifastop below 30°C in a cool, dry place away from direct sunlight and moisture. Keep the pack tightly closed and out of the reach of children. Do not use it after the expiry date printed on the pack.

Expert advice for Rifastop 400 mg Tablet

You have been prescribed Rifastop M 200mg/400mg Tablet for the treatment of infectious diarrhea. Do not skip any doses and finish the full course of treatment even if you feel better. Stopping it early may make the infection come back and harder to treat. It is advisable to drink plenty of fluids and a healthy diet while taking the medicine. It may cause dizziness. Do not drive or do anything that requires mental focus until you know how the medicine affects you. Avoid consuming alcohol while taking medication as it may cause increased side effects. Discontinue Rifastop M 200mg/400mg Tablet and inform your doctor immediately if you get a rash, itchy skin, swelling of face and mouth, or have difficulty in breathing.

Manufacturer and class

Manufacturer:
PANACEA BIOTEC
Therapeutic class:
GASTRO INTESTINAL

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Rifastop 400 mg Tablet FAQs

What is Rifastop 400 mg Tablet used for?
Rifastop 400 mg Tablet is commonly used for Treatment of Infectious diarrhea. 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 Rifastop 400 mg Tablet?
Rifastop 400 mg Tablet contains Rifaximin (200mg) + Metronidazole (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 Rifastop 400 mg 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 Rifastop 400 mg Tablet work?
Rifastop 400 Tablet is an antibiotic.
Is Rifastop 400 mg Tablet a prescription medicine?
Yes. Rifastop 400 mg 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 Rifastop 400 mg Tablet?
The side effects reported most often with Rifastop 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 Rifastop 400 mg Tablet be taken during pregnancy?
Rifastop 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 Rifastop.
Can I drink alcohol while taking Rifastop 400 mg Tablet?
Interaction with alcohol is unknown.
What if I miss a dose of Rifastop 400 mg Tablet?
If you miss a dose of Rifastop M 200mg/400mg Tablet, take it as soon as possible.
Is Rifastop 400 mg Tablet habit forming?
No. Rifastop 400 mg Tablet is not known to be habit forming when taken as prescribed.
How much does Rifastop 400 mg Tablet cost on PingMeDoc Pharmacy?
Rifastop 400 mg Tablet starts at ₹391 on PingMeDoc Pharmacy. Available in tablet 400 mg 10`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Rifastop 400 mg Tablet?
Rifastop 400 mg Tablet is manufactured by PANACEA BIOTEC. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Rifastop 400 mg Tablet delivered?
Rifastop 400 mg 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.

Rifastop 400 mg Tablet, Quick facts

Salt
Rifaximin (200mg) + Metronidazole (400mg)
Form
tablet
Best price
₹391 (₹39.08 per tablet)
Prescription
Required (Rx)
Schedule
Schedule H
Manufacturer
PANACEA BIOTEC
Therapeutic class
GASTRO INTESTINAL
Habit forming
No
Variants
tablet 400 mg 10`S
Delivery
Standard across India

References

The information on Rifastop 400 mg 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. Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
  2. National List of Essential Medicines (NLEM) 2022, Government of India.
  3. Manufacturer's package insert / prescribing information for Rifastop 400 mg Tablet.
  4. World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.

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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.