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OZ 500mg Tablet

Written By Dr. Sakshi Jain, MS, BDS
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS
Last updated on 10 Feb 2026 | 12:12 AM (IST)
OZ 500mg Tablet is an antibiotic medicine that helps your body fight infections caused by bacteria and parasites. It is used to treat infections of the liver, stomach, intestines, vagina, brain, heart, lungs, and skin.
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₹38.5 MRP ₹42.099% off 
 
 
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OZ 500mg Tablet is currently sold out
Same composition alternative:
Ornipen 500mg Tablet
₹67.7₹74.06
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OZ 500mg Tablet
OZ 500mg Tablet
strip of 10 tablets
₹38.5
₹42.09
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Same composition
Ornipen 500mg Tablet
Ornipen 500mg Tablet
strip of 10 tablets
Ornidazole (500mg)
by Morepen Laboratories Ltd
Get by 5pm
₹67.7
₹5.75 per tablet

₹57.5

order for
₹1200

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General Information

Contains

Ornidazole (500mg)

Marketer

Marc Laboratories Pvt Ltd

Storage

Store below 30°C
The content is shown in English
OZ 500mg Tablet image
OZ 500mg Tablet image

Product introduction

OZ 500mg Tablet helps prevent an infection after surgery. It is also used in the treatment of dental infections, leg ulcers, and pressure sores. This medicine is best taken after eating some food. It should be taken at the same time each day to get the most benefit. The amount you are advised will depend on what you are being treated for and how bad it is, but you should take this antibiotic exactly as prescribed by your doctor. Your symptoms may get better after a short time but do not stop taking it until you have finished a full course of treatment, even if you feel well. If you stop taking it early, some bacteria may survive, and the infection may come back. Do not drink any alcohol while taking this medicine and for a few days after stopping it. Otherwise, you may get unpleasant side effects like nausea, vomiting, and stomach pain.

The most common side effects of this medicine are dryness in the mouth, nausea, and a slight metallic taste in the mouth. These are usually mild but let your doctor know if they bother you or last more than a few days. You can try using sugarless candies or lozenges to overcome any dryness or metallic taste in the mouth.

Before using this medicine, inform your doctor if you are allergic to any medicine or have any kidney or liver problems or any disease of the nervous system. Your doctor may change the dose or prescribe a different medicine. This medicine should not be taken if you are pregnant or breastfeeding unless it is absolutely necessary and prescribed by your doctor. It may cause unusual results with certain medical tests. Therefore, tell any doctor who treats you that you are using this medicine.

Uses of OZ Tablet

  • Bacterial & parasitic infections

Benefits of OZ Tablet

Bacterial & parasitic infections
OZ 500mg Tablet is an antibiotic medicine that helps treat many bacterial and parasitic infections. It works by killing and stopping the growth of infection-causing organisms. This way it provides relief from the symptoms and speed up the healing process. This medicine usually makes you feel better quite quickly. However, you should continue using it as long as it is prescribed even if you feel better, to make sure that all bacteria and parasites are killed and do not become resistant.

Side effects of OZ 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 OZ
  • Dryness in mouth
  • Metallic taste
  • Nausea
  • Diarrhea
  • Stomach pain/epigastric pain

How to use OZ 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. OZ 500mg Tablet should be taken with or after food.

How OZ Tablet works

OZ 500mg Tablet is an antibiotic. It kills the bacteria and other microorganisms that cause infections by damaging their DNA.

All substitutes for OZ 500mg Tablet

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

Ornipen 500mg Tablet

by Morepen Laboratories Ltd
₹6.77/tablet
76% costlier
<h3 class=bodySemiBold>Ornipen 500mg Tablet</h3>

ORNI 500 Tablet

by Zydus Cadila
₹10.4/tablet
170% costlier
<h3 class=bodySemiBold>ORNI 500 Tablet</h3>

Ornida 500mg Tablet

by Aristo Pharmaceuticals Pvt Ltd
₹13.7/tablet
256% costlier
<h3 class=bodySemiBold>Ornida 500mg Tablet</h3>

Horn Tablet

by Deys Medical
₹6.5/tablet
69% costlier
<h3 class=bodySemiBold>Horn Tablet</h3>

Dazolic 500mg Tablet

by Sun Pharmaceutical Industries Ltd
₹13.7/tablet
256% costlier
<h3 class=bodySemiBold>Dazolic 500mg Tablet</h3>

Quick tips

  • It may also be used to prevent infections following surgery.
  • Always take the complete course of treatment, as advised by your doctor, even if you feel better.
  • It may cause side effects like nausea, stomach upset, and a metallic taste in the mouth.
  • OZ 500mg Tablet used in a high dose or for a prolonged time increases the risk of side effects such as nerve damage. Take it only as prescribed by your doctor.
  • Do not drink alcohol during or for 2-3 days after treatment with this medicine. You may develop nausea, vomiting, flushing, and headache
  • Inform your doctor if you have  liver disease. Your dose may need to be adjusted in severe liver disease.

Safety advice

Alcohol

Alcohol

UNSAFE
It is unsafe to consume alcohol with OZ 500mg Tablet
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
OZ 500mg Tablet is not recommended during pregnancy as there is positive evidence of fetal risk based on animal studies. However, it may still be prescribed by a doctor in situations where the benefits outweigh the risks.
Breast feeding

Breast feeding

CAUTION
OZ 500mg 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

Driving

UNSAFE
OZ 500mg Tablet may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Kidney

Kidney

CAUTION
OZ 500mg Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Liver

Liver

CAUTION
OZ 500mg Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Frequently asked questions

OZ 500mg Tablet treats various infections, including intestinal parasitic infections, amoebic dysentery, giardiasis, bacterial infections in the abdomen, and the prevention of infections during surgery. It is particularly effective against parasites and certain bacteria.
You should take OZ 500mg Tablet after meals as directed by your doctor. The dosage may vary based on your condition. Do not skip the doses, and complete the full course even if you feel better.
Important things to avoid include alcohol (during treatment and for 3 days after), driving if you feel dizzy, skipping doses, stopping treatment early, and certain foods that may interact with the medicine (ask your doctor for guidance).
Signs of improvement are a reduction in symptoms, improved digestion, less stomach pain, better appetite, and a return to normal bowel movements.
Tell your doctor about all medicines you take, as some blood thinners may interact. Inform your doctor about any supplements you are taking. Discuss timing with other medications, as some combinations may need dose adjustments.
Individuals should not take OZ 500mg Tablet if they have a known allergy to ornidazole, other antibiotics of the same class (nitroimidazoles), or other ingredients present in OZ 500mg Tablet. Also, inform your doctor if you have liver disease, brain disorders, or a history of blood disorders.
Although OZ 500mg Tablet does not typically cause a disulfiram-like reaction, it is recommended to avoid alcohol during the treatment period to reduce the risk of side effects.
In rare cases, OZ 500mg Tablet may cause serious side effects such as leucopenia (low white blood cells) or neurological issues like vertigo, seizures, or nerve pain. These require immediate medical attention.

Fact Box

Chemical Class

Nitroimidazole derivative

Habit Forming

No

Therapeutic Class

ANTI INFECTIVES

Action Class

Antiprotozoal & Antibacterial- Nitroimidazoles

References

  1. ScienceDirect. Ornidazole. [Accessed 30 Mar. 2019] (online) Available from:
  2. Ornidazole. Auckland, New Zealand: Teva Pharma (New Zealand) Limited; 2017. [Accessed 30 Mar. 2019] (online) Available from:
  3. Central Drugs Standard Control Organisation (CDSCO). [Accessed 29 Mar. 2019] (online) Available from:
  4. Ornidazole. Mumbai, Maharashtra: Aristo Pharmaceutical Pvt. Ltd; 2021 [Accessed 08 Jan. 2026] (online). Available from:
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Fully sanitized facilities
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User feedback

Thrice A Day
50%
Once A Day
38%
Twice A Day
12%
Bacterial infections
75%
Diarrhea
25%
Average
67%
Poor
33%
Nausea
100%
Empty stomach
50%
With food
50%
Not Expensive
100%
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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: Marc Laboratories Pvt Ltd
Address: Marc Laboratories Limited, Plot No. 112, HP HIDC, Baddi, Solan-173205, Himachal Pradesh, India

Vendor Details

Country of origin: India

Lab tests offered by us

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