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Nitazoxanide: uses, side effects & brands
Nitazoxanide treats parasitic and some viral diarrhoea, including giardia and cryptosporidium. It belongs to the Antiprotozoal & other antimicrobial group. These treat protozoal gut infections (like amoebiasis and giardia) and some other infections.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Antiprotozoal & other antimicrobial |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Treats diarrhoea caused by giardia
- Treats diarrhoea caused by cryptosporidium
- Used for some other intestinal parasite infections
- Sometimes used for viral diarrhoea such as rotavirus
Common brand names
- India: Nizonide, Netazox, Kidazox
- Worldwide: Alinia
Common side effects
- Tummy pain
- Nausea
- Headache
- Yellow-green colour of urine or eyes
Before taking it — precautions
- Tell your doctor about liver or kidney disease
- Tell your doctor if you are pregnant or breastfeeding
- Keep up fluids to prevent dehydration from diarrhoea
When to see a doctor urgently
- Signs of dehydration such as very little urine, dizziness or drowsiness (urgent)
- Blood in the stool or high fever
- Allergic reaction such as rash or swelling (urgent)
Not a prescription — no dose shown. The right dose of nitazoxanide depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Is it safe for children?
Nitazoxanide is used in children for giardia and cryptosporidium diarrhoea, with the dose set by the doctor.
Why has my urine changed colour?
It can colour urine yellow-green; this is harmless.
Should I take it with food?
Yes, it is usually taken with food, which helps absorption.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.