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Prescription requiredZydus Healthcare PharmaAntibiotic

Duonem ER 300 mg Tablet

Faropenem (300mg)

₹1,654MRP ₹1,741In stock

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

This medicine needs a prescription.

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Duonem ER 300 mg Tablet is used for this medicine is used in the treatment of bacterial infection, gut infection, skin infection and dental infection.

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

Licensed pharmacyPharmacist-verified orderDelivered across India

Key details

Salt: Faropenem (300mg)
Available variants: tablet 300 mg 10`S
Best price: ₹1,654 (₹165.38 per tablet)
MRP: ₹1,741
Prescription: Required
Manufacturer: ZYDUS HEALTHCARE PHARMA

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 Duonem ER 300 mg Tablet.

You are viewing

Duonem ER 300 mg Tablet

tablet - 300 mg - 10 S

₹1,654

₹165.38 per tablet

  • Faropenac-300ER Tab

    LIVIDUS PHARMACEUTICALS PVT LTD.` · tablet - 300mg - 6 S · Rx

    ₹646

    ₹107.67 per tablet

    Save 35%
  • Faronac-300 ER Tab

    MICRO LABS · tablet - 300mg - 10 S · Rx

    ₹1,098

    ₹109.81 per tablet

    Save 34%
  • Ulopen Tab

    Samarth Life Sciences Pvt Ltd · tablet - 300mg - 6 S · Rx

    ₹731

    ₹121.91 per tablet

    Save 26%
Compare all substitutes
Same salt, different brand — what does that mean?

A substitute contains the same active ingredient (salt), in the same strength, as Duonem ER 300 mg 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 Duonem ER 300 mg Tablet

Duonem ER 300 mg Tablet contains Faropenem (300mg). It belongs to the Antibacterial agent class of medicines.

Uses of Duonem ER 300 mg Tablet

  • This medicine is used in the treatment of bacterial infection
  • gut infection
  • skin infection and dental infection.

Key benefits

  • Targets infections that other antibiotic groups do not reach

How Duonem ER 300 mg Tablet works

Faropenem kills or stops the growth of the bacteria causing your infection.

How to take Duonem ER 300 mg Tablet

Swallow the tablet whole with a glass of water. Do not chew, crush or break it unless your doctor has told you to. Take it with or just after food. Taking it at about the same time each day helps you remember. Follow the dose and the duration written on your prescription.

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 Duonem ER 300 mg Tablet

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

  • Nausea
  • Metallic taste
  • Loose motions
  • Stomach pain
  • Headache

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 Duonem ER 300 mg Tablet

PregnancyConsult your doctor before using this in pregnancy.
BreastfeedingConsult your doctor before using this while breastfeeding.
AlcoholDo not drink alcohol while taking this medicine.
DrivingMay cause drowsiness or affect your concentration. Do not drive until you know how it affects you.
KidneyConsult your doctor if you have kidney disease.
LiverConsult your doctor if you have liver disease.
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 Duonem ER 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 Duonem ER 300 mg 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 Duonem ER 300 mg Tablet

Space the doses evenly and complete the course. Take tetracyclines with a full glass of water and stay upright for half an hour afterwards. Never use a leftover antibiotic, or someone else's, for a new illness.

Manufacturer and class

Manufacturer:
ZYDUS HEALTHCARE PHARMA
Therapeutic class:
Antibiotic
Drug class:
Antibacterial agent

Substitutes for Duonem ER 300 mg Tablet

Medicines with the same active ingredient (Faropenem (300mg)). Ask your doctor or pharmacist before switching brands.

MedicinePackPricevs Duonem ER 300 mg Tablet
Faropenac-300ER TabletLIVIDUS PHARMACEUTICALS PVT LTD.`tablet · 6`S₹64661% cheaper
Ulopen TabletSamarth Life Sciences Pvt Ltdtablet · 6`S₹73156% cheaper
Faronac-300 ER TabletMICRO LABStablet · 10`S₹1,09834% cheaper
Farotive-300 ER TabletKOYE PHARMAtablet · 10`S₹1,22326% cheaper
Mero-O ER 300 mg TabletARISTO PHARMACEUTICALS PVT LTDtablet · 10`S₹1,23425% cheaper
Faroright 300 mg ER TabletSUN PHARMA 2tablet · 10`S₹1,26923% cheaper
Exfaro 300 mg TabletIntas Pharmaceuticals Ltdtablet · 10`S₹1,33419% cheaper
Farokaa 300 ER TabletTROIKAA PHARMACEUTICALS`tablet · 10`S₹1,34619% cheaper
See all substitutes and alternatives

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Duonem ER 300 mg Tablet FAQs

What is Duonem ER 300 mg Tablet used for?
Duonem ER 300 mg Tablet is commonly used for This medicine is used in the treatment of bacterial infection, gut infection, skin infection and dental infection. 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 Duonem ER 300 mg Tablet?
Duonem ER 300 mg Tablet contains Faropenem (300mg). 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 Duonem ER 300 mg Tablet?
Swallow the tablet whole with a glass of water. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Duonem ER 300 mg Tablet work?
Faropenem kills or stops the growth of the bacteria causing your infection.
Is Duonem ER 300 mg Tablet a prescription medicine?
Yes. Duonem ER 300 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 Duonem ER 300 mg Tablet?
The side effects reported most often with Duonem ER are Nausea, Metallic taste, Loose motions, Stomach pain, Headache. 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 Duonem ER 300 mg Tablet be taken during pregnancy?
Consult your doctor before using this in pregnancy. Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Duonem ER.
Can I drink alcohol while taking Duonem ER 300 mg Tablet?
Do not drink alcohol while taking this medicine.
What if I miss a dose of Duonem ER 300 mg Tablet?
Take it as soon as you remember.
Is Duonem ER 300 mg Tablet habit forming?
No. Duonem ER 300 mg Tablet is not known to be habit forming when taken as prescribed.
Is there a cheaper substitute for Duonem ER 300 mg Tablet?
Faropenac-300ER Tablet has the same active ingredient and strength and is listed from ₹646 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 Duonem ER 300 mg Tablet cost on PingMeDoc Pharmacy?
Duonem ER 300 mg Tablet starts at ₹1,654 (MRP ₹1,741) on PingMeDoc Pharmacy. Available in tablet 300 mg 10`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Duonem ER 300 mg Tablet?
Duonem ER 300 mg Tablet is manufactured by ZYDUS HEALTHCARE PHARMA. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Duonem ER 300 mg Tablet delivered?
Duonem ER 300 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.

Duonem ER 300 mg Tablet, Quick facts

Salt
Faropenem (300mg)
Form
tablet
Best price
₹1,654 (₹165.38 per tablet)
MRP
₹1,741
Prescription
Required (Rx)
Brand
ZYDUS HEALTHCARE PHARMA
Manufacturer
ZYDUS HEALTHCARE PHARMA
Therapeutic class
Antibiotic
Drug class
Antibacterial agent
Habit forming
No
Variants
tablet 300 mg 10`S
Delivery
Standard across India

References

The information on Duonem ER 300 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. 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 Duonem ER 300 mg 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.