Nitasis 500 mg Tablet

Nitasis 500 mg Tablet contains nitazoxanide, an antiprotozoal and antiparasitic medicine from Navana Pharmaceuticals Ltd. It is mainly used to treat diarrhoea caused by certain protozoal infections, including Giardia lamblia and Cryptosporidium parvum.

Nitasis 500 mg tablet is manufactured by Navana Pharmaceuticals Ltd. and contains Nitazoxanide, a broad-spectrum antiprotozoal and antiparasitic medicine. It is mainly used to treat diarrhoea caused by the intestinal parasites Giardia lamblia and Cryptosporidium parvum, and doctors also prescribe it for certain worm infections and other persistent infective diarrhoeas. Nitasis should be taken with food.

Nitazoxanide works by blocking an enzyme system (pyruvate:ferredoxin oxidoreductase) that many parasites depend on for their energy production. Without this energy pathway, the parasites cannot survive or multiply, and the gut gradually clears the infection. Taking the medicine with food increases its absorption and improves its effectiveness.

Nitazoxanide is indicated for:

• Giardiasis — diarrhoea caused by Giardia lamblia
• Cryptosporidiosis — diarrhoea caused by Cryptosporidium parvum, including in children
• Amoebiasis and some helminth (worm) infections — as judged appropriate by a doctor
• Persistent or rotavirus-associated diarrhoea — in selected cases under medical guidance

Most short-lived diarrhoea is viral and needs only fluids and zinc (in children) — not antiparasitic medicine. Nitasis should be used when a doctor suspects or confirms a parasitic cause, not routinely for every loose motion.

ChamberBD shows dosing only from the approved product label, with its source named, and no label is on file for Nitasis 500 mg Tablet. Use the dose your doctor prescribed and the instructions in the pack leaflet.

Nitazoxanide is generally well tolerated. Possible side effects:

• Common: abdominal pain, nausea, headache, and harmless bright yellow-green discolouration of urine (sometimes of the eyes' sclera appearing yellowish-tinged in reports, and of body fluids)
• Less common: vomiting, diarrhoea, dizziness, loss of appetite
• Rare: allergic reactions with rash, itching or swelling; raised liver enzymes

The yellowish urine is expected with this medicine and disappears after the course ends. Seek medical help for any swelling of the face or throat, breathing difficulty, severe rash, or worsening dehydration despite treatment.

Precautions with Nitazoxanide:

• Take with food — absorption is much better and stomach upset less likely
• Rehydration first: in any diarrhoea, fluids and electrolytes (ORS) remain the priority; the antiparasitic complements, never replaces, them
• Tell your doctor about liver or kidney disease and immune-suppressing conditions such as advanced HIV, where response may differ and longer therapy may be needed
• Diabetic patients should note the suspension contains sugar
• If diarrhoea persists beyond the course, returns, or contains blood, return to the doctor for stool testing rather than repeating courses on your own

Nitazoxanide has relatively few known drug interactions, but note:

• Highly protein-bound drugs: its active form (tizoxanide) binds strongly to blood proteins, so caution with warfarin, phenytoin and similar narrow-margin medicines — monitoring may be advised
• Other antiparasitics: combinations should be doctor-directed to avoid unnecessary duplication
• Alcohol: avoid during treatment of gut infections, as it worsens dehydration and stomach upset

Always give your doctor and pharmacist a complete list of your medicines, including blood thinners and anti-epileptics, before starting Nitasis.

Nitazoxanide should not be used in:

• Known hypersensitivity to nitazoxanide or any component of the tablet
• Children below the age covered by the product's licence (suspension is generally for 1 year and above; tablets for 12 years and above) unless a doctor directs otherwise

Use with caution, under medical supervision, in significant liver or kidney impairment, as safety data in these groups are limited. In severely immunocompromised patients (such as advanced HIV), effectiveness may be reduced and specialist-guided treatment is required rather than standard self-medication.

Pregnancy: Animal studies with nitazoxanide have not shown harm to the foetus, but well-controlled human studies are lacking. It should be used in pregnancy only if a registered doctor judges the benefit to outweigh potential risk — particularly in the first trimester, when most medicines are minimised.

Lactation: It is not known whether nitazoxanide or its active metabolite passes into human breast milk. Breastfeeding mothers should use it only on a doctor's advice, who will weigh the importance of treating the mother's infection against any theoretical risk to the infant.

Store as printed on the pack and keep out of the reach of children.