Prescription requiredAntibiotic/Antiprotozoal (Anti-infective for diarrhoea)

Zanocin Oz Tab 10S — Side Effects & Warnings

Known side effects of Zanocin Oz Tab 10S include Nausea, vomiting, abdominal pain, diarrhoea, headache, dizziness, metallic taste, dry mouth. Not everyone experiences these side effects.

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

Common Side Effects

Nausea
vomiting
abdominal pain
diarrhoea
headache
dizziness
metallic taste
dry mouth

This is not an exhaustive list. Consult your doctor if you notice any unusual symptoms.

Important Warnings

Use only on medical advice; not for self-treatment of diarrhoea. Avoid in allergy to ofloxacin/quinolones or ornidazole/nitroimidazoles. Caution in epilepsy/seizure disorders, liver disease, kidney disease, elderly, myasthenia gravis. Fluoroquinolones may cause tendonitis/tendon rupture, peripheral neuropathy, CNS effects, QT prolongation and worsening of myasthenia gravis—stop and seek care if tendon pain, numbness/tingling, palpitations, severe dizziness or confusion occur. May cause photosensitivity—limit sun exposure. If severe/persistent diarrhoea occurs, seek medical advice (risk of C. difficile).

Drug Interactions

Zanocin Oz Tab 10S may interact with the following:

Warfarin/other anticoagulants (increased bleeding risk)
antacids or supplements containing magnesium/aluminium/iron/zinc/calcium (reduced ofloxacin absorption)
corticosteroids (increased tendon rupture risk)
antiarrhythmics/QT-prolonging drugs (increased arrhythmia risk)
NSAIDs (increased seizure risk)
theophylline (increased CNS stimulation)
insulin/oral antidiabetics (blood sugar disturbances)
alcohol (disulfiram-like reaction with ornidazole)

Always tell your doctor about all medicines you are taking, including over-the-counter drugs and supplements.

Pregnancy Safety

Use with caution / Consult doctor (generally avoid unless clearly needed)

Alcohol Interaction

Avoid

Habit Forming

Storage

Store below 25°C in a dry place, protected from light and moisture. Keep out of reach of children.

Zanocin Oz Tab 10S — Safety Summary

Composition: Ofloxacin 200 mg + Ornidazole 500 mg
Prescription: Required (Rx)
Pregnancy: Use with caution / Consult doctor (generally avoid unless clearly needed)
Alcohol: Avoid
Habit forming: No

Zanocin Oz Tab 10S — Safety FAQs

What should I do if I experience side effects?

Mild side effects often resolve on their own. If side effects are severe or persistent, stop the medicine and consult your doctor immediately.

Are all listed side effects common?

No. Some side effects are common while others are rare. Not everyone experiences side effects. Consult your doctor if you are concerned.

Can I take this medicine with other drugs?

Some medicines interact with each other. Always inform your doctor about all medicines you are currently taking.

When should I seek emergency help?

Seek immediate medical attention if you experience severe allergic reactions (difficulty breathing, swelling of face/throat), chest pain, or any life-threatening symptoms.

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Safety disclaimer

This information is for educational purposes only and is not a substitute for professional medical advice. If you experience severe side effects, seek medical attention immediately.