Avinor 400mg Tablet

Reviewed By Dr. Mekhala Chandra, MD, MBBS

Last updated on 26 Feb 2026 | 02:18 AM (IST)

Avinor 400mg Tablet is an antibiotic, used in the treatment of bacterial infections. It is also used in treating infections of the urinary tract, nose, throat, skin, soft tissues, and lungs (pneumonia). It cures the infection by stopping the further growth of the causative microorganisms.

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Avinor 400mg Tablet is currently sold out

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Norflokem 400mg Tablet

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Avinor 400mg Tablet

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₹38.8

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Same composition

Norflokem 400mg Tablet

strip of 10 tablets

Norfloxacin (400mg)

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General Information

Contains

Norfloxacin (400mg)

Marketer

Bhavishya Pharmaceuticals Pvt Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Avinor 400mg Tablet should be used in the dose and duration as advised by your doctor. It may be taken with or without food, preferably at a fixed time. Avoid skipping any doses and finish the full course of treatment even if you feel better. Do not take a double dose to make up for a missed dose. Simply take the next dose as planned.

You may experience nausea as a side effect of this medicine. This is usually temporary and resolves on its own, but please consult your doctor if it bothers you or persists for a longer duration. Diarrhea may also occur as a side effect, but it should stop when your course is complete. Inform your doctor if it does not stop or if you find blood in your stools.

Avinor 400mg Tablet should not be used in people who have had an allergic reaction to norfloxacin or other quinolone antibiotics, or who have previously developed tendon inflammation (tendinitis) or tendon rupture while using these medicines. Special care should be taken in people with kidney problems while taking this medicine.

Uses of Avinor Tablet

Treatment of Bacterial infections

Benefits of Avinor Tablet

Treatment of Bacterial infections
Avinor 400mg Tablet is an antibiotic medication that can be used to treat various bacterial infections. It stops the growth of the bacteria causing the infection and clears the infection. Take it for as long as prescribed by the doctor and avoid skipping doses. This ensures that all bacteria are killed and do not become resistant.

Side effects of Avinor Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Avinor

Local site reactions
Headache
Dizziness
Nausea
Abdominal cramp
Increased aspartate aminotransferase
Increased alanine aminotransferase
Decreased white blood cell count
Low blood platelets
Protein in urine
Increased alkaline phosphatase level in blood

How to use Avinor 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. Avinor 400mg Tablet is to be taken on an empty stomach.

How Avinor Tablet works

Avinor 400mg Tablet is an antibiotic. It works by stopping the action of a bacterial enzyme called DNA-gyrase. This prevents the bacterial cells from dividing and repairing, thereby killing them.

All substitutes for Avinor 400mg Tablet

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

Do not skip any doses and finish the full course of treatment even if you feel better.
Discontinue Avinor 400mg Tablet and inform your doctor immediately if you get a rash, itchy skin, swelling of the face and mouth, or have difficulty breathing.
Diarrhea may occur as a side effect, but it should stop when your course is complete. Inform your doctor if it doesn't stop or if you find blood in your stools.
Notify your doctor if you feel pain in your tendons, numbness, or tingling sensations.
Inform your doctor if you are pregnant or planning to conceive or breastfeeding.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with Avinor 400mg Tablet. Please consult your doctor.

Pregnancy

CONSULT YOUR DOCTOR

The safety of Avinor 400mg Tablet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

CAUTION

Avinor 400mg Tablet should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from the body.

Driving

SAFE

Avinor 400mg Tablet does not usually affect your ability to drive.

Kidney

CAUTION

Avinor 400mg Tablet should be used with caution in patients with severe kidney disease. Dose adjustment may be needed.
Use of Avinor 400mg Tablet is not advised in patients with severe kidney disease.

Liver

CAUTION

Avinor 400mg Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Interaction with drugs

Taking Avinor with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Severe

Cholera Vaccine (Inactivated) (Oral Route)

Do not consume Cholera Vaccine (Inactivated) two weeks before and at least 10 days after consuming Norfloxacin. Please consult your doctor. Norfloxacin may reduce the efficacy of Cholera Vaccine (Inactivated).

Severe

Purified Vi Polysaccharide Typhoid Vaccine (Injection Route)

Norfloxacin may reduce the efficacy of Purified Vi Polysaccharide Typhoid Vaccine. Norfloxacin may reduce the efficacy of Purified Vi Polysaccharide Typhoid Vaccine.

Moderate

Glibenclamide (Oral Route)

Talk to your doctor if you notice any unusual symptoms.Doctor may monitor your liver function.

Moderate

Aceclofenac (Oral Route)

Do not consume Norfloxacin with Aceclofenac. If concurrent use is essential, watch out for convulsions and seizures and consult your doctor if you experience them. They may monitor your treatment and adjust the doses as per the observations.

Moderate

Aceclofenac (Injection Route)

Frequently asked questions

What is Avinor 400mg Tablet and what is it used for?

Avinor 400mg Tablet is an antibiotic used to treat a variety of bacterial infections affecting the urinary tract, gastrointestinal tract, and certain genital infections. It is commonly prescribed for conditions such as urinary tract infections (UTIs), chronic prostatitis, gonorrheal infections, and acute bacterial gastroenteritis. This medicine is generally recommended when other commonly used antibiotics are considered unsuitable or ineffective for the infection.

How should Avinor 400mg Tablet be taken for best results?

Avinor 400mg Tablet should be swallowed with a full glass of water to ensure proper absorption and reduce the risk of urinary side effects. The medicine should be taken at least one hour before or two hours after meals or milk products because food and dairy can interfere with absorption. Drinking adequate fluids during treatment is important to maintain hydration and help the medicine work effectively.

Can Avinor 400mg Tablet be taken with milk, antacids, or multivitamins?

Avinor 400mg Tablet should not be taken at the same time as milk, dairy products, antacids, or supplements containing iron or zinc. These products can reduce the amount of medicine absorbed into the bloodstream, making the treatment less effective. A gap of at least two hours before or after taking such products is recommended to ensure optimal antibiotic action.

Who should not take Avinor 400mg Tablet?

Avinor 400mg Tablet should not be used in people who are allergic to norfloxacin or other quinolone antibiotics. It is also contraindicated in individuals with a history of tendon problems related to fluoroquinolone use, as well as in pregnant women and pre-pubertal children. A doctor should always evaluate medical history carefully before prescribing this antibiotic to ensure safe use.

Can Avinor 400mg Tablet cause tendon pain or muscle problems?

Avinor 400mg Tablet belongs to the fluoroquinolone class of antibiotics, which has been associated with tendon inflammation and, in rare cases, tendon rupture. These effects may occur during treatment or even months after stopping the medicine. Patients should stop taking the drug and seek medical advice immediately if they notice tendon pain, swelling, or difficulty moving a joint.

Is Avinor 400mg Tablet safe for people with diabetes?

Avinor 400mg Tablet may affect blood glucose levels and can sometimes cause either low or high blood sugar, particularly in people with diabetes. Patients using insulin or oral antidiabetic medicines should monitor their blood sugar closely while taking this antibiotic. Any symptoms such as dizziness, sweating, confusion, or unusual weakness should be reported to a doctor promptly.

Should sunlight be avoided while taking Avinor 400mg Tablet?

Avinor 400mg Tablet may increase sensitivity of the skin to sunlight, which can lead to exaggerated sunburn or skin reactions. Patients are advised to avoid excessive sun exposure or tanning beds during treatment. If redness, swelling, or severe skin reactions develop after sun exposure, the medicine should be discontinued, and medical advice should be sought.

Fact Box

Chemical Class

Quinoline carboxylic acids

Habit Forming

Therapeutic Class

ANTI INFECTIVES

Action Class

Bacterial DNA Replication Inhibitors- Quinolones/ Fluroquinolones

Related lab tests

Complete Blood Count

Peripheral Smear Examination

References

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. 1003-1006.
Central Drugs Standard Control Organisation (CDSCO). [Accessed 26 Feb. 2026] (online) Available from:
Norfloxacin [Summary of Product Characteristics]. Alwar, Rajasthan; Medicamen Biotech Limited; 2023. [Accessed 26 Feb. 2026] (online) Available from:
Norfloxacin [New Zealand Data Sheet]. Remuera, Auckland: Teva Pharma (New Zealand) Limited; 2025. [Accessed 26 Feb. 2026] (online) Available from:
Norfloxacin [Product Monograph]. Vaughan, Ontario: AA Pharma Inc.; 2025. [Accessed 26 Feb. 2026] (online) Available from:

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Disclaimer

Tata 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 everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. 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.

Marketer details

Name: Bhavishya Pharmaceuticals Pvt Ltd
Address: 8-3-677/52/2,SRIKRISHNA DEVARAYANAGAR, YELLAREDDYGUDA HYDERABAD TG 500073 INDIA

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Provide right medicines

Prescriptions are complex documents. We proof read and recheck at various steps to provide you the right medication in the correct form and dose

In accordance with the law

Most medicines cannot be sold without a valid prescription, as per the Drugs and Cosmetics Act, 1940 and Rules, 1945

Avinor 400mg Tablet

Save more with additional offers

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Avinor Tablet

Benefits of Avinor Tablet

Side effects of Avinor Tablet

How to use Avinor Tablet

How Avinor Tablet works

All substitutes for Avinor 400mg Tablet

Noxitef 400mg Tablet

Alflox 400 Tablet

Norflokem 400mg Tablet

Nflox B 400mg Tablet

Norozee 400 Tablet

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Cholera Vaccine (Inactivated) (Oral Route)

Purified Vi Polysaccharide Typhoid Vaccine (Injection Route)

Glibenclamide (Oral Route)

Aceclofenac (Oral Route)

Aceclofenac (Injection Route)

Frequently asked questions

What is Avinor 400mg Tablet and what is it used for?

How should Avinor 400mg Tablet be taken for best results?

Can Avinor 400mg Tablet be taken with milk, antacids, or multivitamins?

Who should not take Avinor 400mg Tablet?

Can Avinor 400mg Tablet cause tendon pain or muscle problems?

Is Avinor 400mg Tablet safe for people with diabetes?

Should sunlight be avoided while taking Avinor 400mg Tablet?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Complete Blood Count

Peripheral Smear Examination

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

Related/Popular tests