Nixanide 500 Tablet

Q1: What is Nixanide 500 Tablet used for?

Nixanide 500 contains Nitazoxanide 500mg and is used to treat intestinal parasitic infections including giardiasis (Giardia lamblia) and cryptosporidiosis (Cryptosporidium parvum/hominis). It is also active against certain bacteria and viruses causing diarrhoeal disease.

Q2: How does Nitazoxanide in Nixanide 500 work?

Nitazoxanide inhibits the pyruvate:ferredoxin oxidoreductase (PFOR) enzyme pathway, which is essential for the anaerobic energy metabolism of parasites and anaerobic bacteria. This disrupts the parasite's ability to produce energy, ultimately killing it.

Q3: What parasitic infections does Nixanide 500 treat?

Nixanide 500 treats giardiasis (Giardia intestinalis), cryptosporidiosis (Cryptosporidium parvum/hominis), and intestinal infections caused by other protozoa. It also has activity against some helminths and anaerobic bacteria.

Q4: What is the correct dose of Nixanide 500 Tablet?

The standard adult dose is one 500mg tablet twice daily for 3 days, taken with food. For children, lower doses or suspension formulations are used based on weight. Always follow your doctor's prescription.

Q5: Should I take Nixanide 500 with or without food?

Nixanide 500 should be taken with food. Taking it with a meal improves absorption of nitazoxanide and reduces the likelihood of gastrointestinal side effects such as nausea and abdominal discomfort.

Q6: How long does it take for Nixanide 500 to work?

Improvement in diarrhoeal symptoms typically occurs within 1–3 days. The full 3-day course should always be completed even if you feel better earlier, to ensure complete elimination of the parasite.

Q7: Why does my urine look yellow-green after taking Nixanide 500?

Discolouration of urine to a yellow-green colour is a known and harmless side effect of nitazoxanide. It occurs because the drug metabolite (tizoxanide glucuronide) is excreted in urine and gives it a distinctive colour. This is not a cause for concern.

Q8: What are the common side effects of Nixanide 500?

Common side effects include nausea, mild abdominal pain, diarrhoea (may be loose initially), headache, dizziness, and yellow-green discolouration of urine (harmless). Most side effects are mild and resolve after completing the course.

Q9: Is Nixanide 500 safe for children?

Nitazoxanide is used in children over 1 year of age, but the 500mg tablet strength is intended for adults and children over 12 years. Younger children require lower doses using oral suspension formulations, always prescribed by a doctor.

Q10: Can pregnant women take Nixanide 500?

Nitazoxanide is Pregnancy Category B. There is limited human safety data. It should only be used during pregnancy if the potential benefit justifies the potential risk to the fetus. Always consult your doctor before taking this medication during pregnancy or breastfeeding.

Q11: How should I store Nixanide 500 Tablet?

Store at room temperature between 15°C and 25°C. Keep tablets in the original blister packaging, protected from light and moisture. Keep out of reach of children and do not use after the expiry date.

Q12: Do I need a prescription for Nixanide 500?

Yes, Nixanide 500 requires a valid prescription. A confirmed diagnosis of the specific parasitic infection is important to ensure the appropriate treatment is selected and that the 3-day course is adequate for your condition.