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Nitazoxanide

Diarrhea caused by Giardia lamblia or Cryptosporidium parvum: Nitazoxanide tablets (patients 12 years and older) are indicated for the treatment of di.

Checked against the official label · Updated

Prescription medicine Oral

How to use Nitazoxanide

Ce que dit la notice officielle. Si un médecin vous l'a prescrit, suivez l'ordonnance. La notice de votre boîte prime si elle est différente.

Pour qui

Diarrhea caused by Giardia lamblia or Cryptosporidium parvum: Nitazoxanide tablets (patients 12 years and older) are indicated for the treatment of diarrhea caused by Giardia lamblia or Cryptosporidium parvum . Limitations of Use Nitazoxanide tablets have not been shown to be effective for the treatment of diarrhea caused by Cryptosporidium parvum in HIV-infected or immunodeficient patients [see Clinical Studies (14.2) ] . Nitazoxanide tablets are antiprotozoal indicated for the treatment of diarrhea caused by Giardia lamblia or Cryptosporidium parvum (1 ). Limitations of Use: Nitazoxanide tablets have not been shown to be effective for the treatment of diarrhea caused by C. …

Comment le prendre et à quelle fréquence
  • Nitazoxanide tablets should not be administered to pediatric patient 11 years of age or younger . • Dosage for treatment of diarrhea caused by G.lamblia or C. parvum : Age Dosage Duration 12 years and older One 500 mg nitazoxanide tablet every 12 hours with food 3 days Recommended Dosage and Important Administration Instructions Important Administration Instructions for Pediatric Patients 11 years of Age or Younger: Nitazoxanide tablets should not be administered to pediatric patients 11 years of age or younger because a single tablet contains a greater amount of nitazoxanide than the recommended dosing in this pediatric age group
  • Table 1
  • Recommended Dosage Age Dosage Duration 12 years and older One 500 mg nitazoxanide tablet taken orally every 12 hours with food 3 days
Strengths it comes in

Nitazoxanide tablets: 500 mg ( 3 ). 3.1 Nitazoxanide Tablets (500 mg) Green colored, round biconvex film-coated tablets debossed with “V1” on one side and “1” on the other side. Each tablet contains 500 mg of nitazoxanide.

Children
  • The safety and efficacy of nitazoxanide tablets
  • For the treatment of diarrhea caused by G. lamblia or C. parvum
  • In pediatric patients 12 to 17 years of age has been established based on three randomized controlled studies with 47 pediatric subjects treated with nitazoxanide tablets 500 mg
  • A single nitazoxanide tablet contains a greater amount of nitazoxanide than is recommended for use
  • In pediatric patients 11 years or younger. [see Dosage and Administration ]
Older adults

Clinical studies of nitazoxanide tablets did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. In general, the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy in elderly patients should be considered when prescribing nitazoxanide tablets.

While you are taking it
  • Advise patients and parents/caregivers of pediatric patients taking nitazoxanide tablets of the following information: Dosage and Administration: Nitazoxanide tablets should be taken with food
  • Drug-drug Interactions: Avoid concurrent warfarin use
  • Manufactured for: Camber Pharmaceuticals, Inc
  • Piscataway, NJ 08854 By: Annora Pharma Pvt
  • Sangareddy - 502313, Telangana, India
  • Revised: 05/2025 camberlogo
Talk to a doctor first if

Hypersensitivity ( 4.1 ) 4.1 Hypersensitivity Nitazoxanide tablets are contraindicated in patients with a prior hypersensitivity to nitazoxanide or any other ingredient in the formulations.

Medicines it may not mix with

Competition for binding sites may occur when administered concurrently with other highly plasma protein-bound drugs with narrow therapeutic indices. Monitor for adverse reactions ( 7 ). 7.1 Highly Protein Bound Drugs with Narrow Therapeutic Indices Tizoxanide (the active metabolite of nitazoxanide) is highly bound to plasma protein (>99.9%). Therefore, monitor for adverse reactions when administering nitazoxanide concurrently with other highly plasma protein-bound drugs with narrow therapeutic indices, as competition for binding sites may occur (e.g., warfarin).

Effets secondaires possibles

The most common adverse reactions in ≥2% of patients were abdominal pain, headache, chromaturia, and nausea ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, contact Annora Pharma Private Limited at 1-866-495-1995 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. …

Pregnancy and breastfeeding

8.1 Pregnancy Risk Summary There are no data with nitazoxanide in pregnant women to inform a drug-associated risk. No teratogenicity or fetotoxicity was observed in animal reproduction studies with administration of nitazoxanide to pregnant rats and rabbits during organogenesis at exposures 30 and 2 times, respectively, the exposure at the maximum recommended human dose of 500 mg twice daily based on body surface area (BSA). In the U.S. …

If you take too much

Limited information on nitazoxanide overdosage is available. In the event of overdose, gastric lavage may be appropriate soon after oral administration. Patients should be observed and given symptomatic and supportive treatment. There is no specific antidote for overdose with nitazoxanide. Because tizoxanide is highly protein bound (>99.9%), dialysis is unlikely to significantly reduce plasma concentrations of the drug.

En cas d'oubli

Prenez-le dès que vous y pensez, sauf s'il est presque l'heure de la dose suivante. Dans ce cas, sautez la dose oubliée. Ne prenez jamais deux doses à la fois pour compenser. Vérifiez votre notice, certains médicaments font exception.

From the official U.S. FDA label for this active ingredient. Your pack may have a different strength, so always read its leaflet. If a doctor prescribed it, follow the prescription. Ask a pharmacist if you are unsure. Label dated 2025-12-30.

Marques dans le monde

Products with Nitazoxanide as the active ingredient. Names differ between countries.

Registered products

Nigeria (NAFDAC)

NAFDACZooxan Suspension C4-1438NAFDACZooxan 500 Tablets C4-1437

Other countries: check your pack's registration number and we point you to your regulator.

Check your pack of Nitazoxanide

Type the registration number on the pack, or scan it with your camera.

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Encore 3 vérifications gratuites aujourd'hui Official sources: U.S. FDA · EMA (EU) · Health Canada · WHO alerts

Questions about Nitazoxanide

What is Nitazoxanide used for?

Diarrhea caused by Giardia lamblia or Cryptosporidium parvum: Nitazoxanide tablets (patients 12 years and older) are indicated for the treatment of diarrhea caused by Giardia lamblia or Cryptosporidium parvum . Limitations of Use Nitazoxanide tablets have not been shown to be effective for the treatment of diarrhea caused by Cryptosporidium parvum in HIV-infected or immunodeficient patients [see Clinical Studies (14. (From the official U.S. FDA label.)

How do I take Nitazoxanide?

Follow your prescription or the leaflet in your pack. The official label says: • Nitazoxanide tablets should not be administered to pediatric patient 11 years of age or younger ( 2.1 ). • Dosage for treatment of diarrhea caused by G.lamblia or C. parvum ( 2.1 ): Age Dosage Duration 12 years and older One 500 mg nitazoxanide tablet every 12 hours with food 3 days 2.1 Recommended Dosage and Important Administration Instructions Important Administration Inst…

Do I need a prescription for Nitazoxanide?

Usually yes. Nitazoxanide is a prescription medicine in most countries. Rules differ by country.

What brands contain Nitazoxanide?

Nitazoxanide is sold under names such as Alinia. Brand names differ between countries.

What are the side effects of Nitazoxanide?

The official label lists: The most common adverse reactions in ≥2% of patients were abdominal pain, headache, chromaturia, and nausea ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, contact Annora Pharma Private Limited at 1-866-495-1995 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction… Tell your doctor about any side effect that bothers you or does not go away.

Can children take Nitazoxanide?

The safety and efficacy of nitazoxanide tablets for the treatment of diarrhea caused by G. lamblia or C. parvum in pediatric patients 12 to 17 years of age has been established based on three (3) randomized controlled studies with 47 pediatric subjects treated with nitazoxanide tablets 500 mg. A single nitazoxanide tablet contains a greater amount of nitazoxanide than is recomm… Always use the dose for the child's age or weight on the pack or prescription.

Can I take Nitazoxanide when pregnant or breastfeeding?

8.1 Pregnancy Risk Summary There are no data with nitazoxanide in pregnant women to inform a drug-associated risk. No teratogenicity or fetotoxicity was observed in animal reproduction studies with administration of nitazoxanide to pregnant rats and rabbits during organogenesis at exposures 30 and 2 times, respectively, the exposure at the maximum recommended human dose of 500… Ask your doctor or midwife first.

What medicines interact with Nitazoxanide?

Competition for binding sites may occur when administered concurrently with other highly plasma protein-bound drugs with narrow therapeutic indices. Monitor for adverse reactions ( 7 ). 7.1 Highly Protein Bound Drugs with Narrow Therapeutic Indices Tizoxanide (the active metabolite of nitazoxanide) is highly bound to plasma protein (>99.9%). Therefore, monitor for adverse react… Use the free interaction checker before combining medicines.

What happens if I take too much Nitazoxanide?

Limited information on nitazoxanide overdosage is available. In the event of overdose, gastric lavage may be appropriate soon after oral administration. Patients should be observed and given symptomatic and supportive treatment. There is no specific antidote for overdose with nitazoxanide. Because t… Get medical help right away.

How can I check that my Nitazoxanide is genuine?

Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.

Sources

This page shows what official sources say, in plain words. It is not medical advice: your prescription and your doctor or pharmacist come first. Brand names, strengths and rules differ between countries.