Nitazoxanideside effects
nitazoxanide 500 MG Oral Tablet
Adverse reactions
The most common adverse reactions in ≥2% of patients were abdominal pain, headache, chromaturia, and nausea. 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. The safety of nitazoxanide was evaluated in 2177 HIV-uninfected subjects 12 months of age and older who received nitazoxanide tablets or Alina for oral suspension at the recommended dose for at least three days. In pooled controlled clinical trials involving 536 HIV-uninfected subjects treated with nitazoxanide tablets or Alina for oral suspension, the most common adverse reactions were abdominal pain, headache, chromaturia and nausea (≥2%). Safety data were analyzed separately for 280 HIV-uninfected subjects ≥12 years of age receiving nitazoxanide at the recommended dose for at least three days in 5 placebo-controlled clinical trials and for 256 HIV-uninfected subjects 1 through 11 years of age in 7 controlled clinical trials. There were no differences between the adverse reactions reported for nitazoxanide-treated subjects based upon age.
6.2 Postmarketing
Experience The following adverse reactions have been identified during post approval use of nitazoxanide. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The following is a list of adverse reactions spontaneously reported with nitazoxanide tablets which were not included in clinical trial listings: Gastrointestinal disorders: diarrhea, gastroesophageal reflux disease Nervous System disorders: dizziness Respiratory, thoracic and mediastinal disorders: dyspnea Skin and subcutaneous tissue disorders: rash, urticaria
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective December 30, 2025. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
Contraindications
Hypersensitivity
4.1 Hypersensitivity
Nitazoxanide tablets are contraindicated in patients with a prior hypersensitivity to nitazoxanide or any other ingredient in the formulations.
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective December 30, 2025. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
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