Nitrofurantoin Capsule: Uses, Dosage & Side Effects in Pakistan

Nitrofurantoin Capsule Uses, Dosage, Side Effects & Price in Pakistan

1. Quick Info

2. What is Nitrofurantoin Capsule?

Nitrofurantoin Capsule is an antibiotic used in Pakistan for uncomplicated urinary tract infection. It belongs to the Nitrofuran drug class. Nitrofurantoin is bactericidal — it simultaneously disrupts bacterial DNA, protein, and cell wall synthesis, leaving little chance for resistance to develop. This medicine is used only for lower UTI — it is not effective for kidney infection (pyelonephritis) or blood infection (bacteremia).

3. Uses

• Uncomplicated urinary tract infection — lower urinary tract infection (lower UTI)
• UTI prophylaxis in recurrent cases (long-term preventive use under doctor supervision)

Important note: Nitrofurantoin is NOT for complicated UTI, pyelonephritis (kidney infection), or bacteremia — it is for lower UTI only.

4. Who Should Take

• Patients diagnosed with uncomplicated lower UTI (bladder infection) by a doctor
• Adults with recurrent UTI who are on doctor-supervised prophylaxis
• Patients with adequate kidney function (GFR ≥45 mL/min)

5. When NOT to Take

• If you are allergic to nitrofurantoin or any of its ingredients
• If kidney function is impaired — GFR below 45 mL/min (drug does not reach adequate concentrations in urine)
• If you have G6PD (glucose-6-phosphate dehydrogenase) deficiency — risk of haemolytic anaemia
• If you have complicated UTI, kidney infection (pyelonephritis), or blood infection — use a different antibiotic
• During pregnancy at term (38–42 weeks), during labour, or in neonates — risk of haemolytic anaemia

6. Dosage

• As prescribed by your doctor

• As prescribed — complete the full course (typically 5–7 days for acute UTI; prophylaxis duration varies)

• Do not exceed the recommended limit

• If you miss a dose, take it as soon as you remember. If the next dose is close, skip the missed dose. Never take a double dose.

7. How to Take

• Nitrofurantoin should be taken with food — this improves absorption and reduces nausea

• Take at the same time every day

• Complete the full course as directed by your doctor — do not stop even when feeling better

• Drink plenty of water

8. Best Time

• Taking it with breakfast or dinner is preferable

• Maintain a routine — take at the same time every day

9. With Food or Empty Stomach

Always take Nitrofurantoin with food — taking it on an empty stomach can cause nausea and stomach upset. Taking it with food also improves absorption.

10. Warnings

• Don't use Nitrofurantoin Capsule if you are allergic to nitrofurantoin or any ingredient
• Avoid if GFR is below 45 mL/min (kidney impairment)
• Avoid in G6PD deficiency
• Do not use for complicated UTI or kidney infection — not effective for these

• Pulmonary symptoms (chest pain, breathlessness, persistent dry cough) during chronic use — stop medicine and see doctor
• Liver function monitoring if used long-term

11. Precautions

• Store in a cool, dry place — below 30°C
• Keep away from direct sunlight
• Keep out of the reach of children

• Pregnancy: Use only if clearly needed in first and second trimester; AVOID at term (38–42 weeks)
• Breastfeeding: Avoid if infant has G6PD deficiency
• Elderly: Use with caution — kidney function declines with age; check GFR before use

12. Side Effects

• Nausea, vomiting, diarrhoea, abdominal pain, brown/dark discolouration of urine (harmless — warn patient)

• Pulmonary toxicity (acute reaction: sudden chest pain, fever, breathlessness; chronic: slow persistent cough, breathlessness) — rare but serious
• Hepatotoxicity — liver damage (rare)
• Peripheral neuropathy — tingling, numbness in hands/feet (prolonged use)
• Haemolytic anaemia (in G6PD deficiency patients)

13. Drug Interactions

• Antacids containing magnesium trisilicate — reduce absorption of nitrofurantoin; avoid co-administration
• Probenecid — reduces renal excretion of nitrofurantoin, increasing blood levels and toxicity risk
• Quinolone antibiotics (e.g. ciprofloxacin) — antagonise nitrofurantoin antibacterial action; do not combine

14. When to See Doctor

• Sudden chest pain or difficulty breathing (acute pulmonary reaction — EMERGENCY)
• Persistent dry cough lasting weeks (chronic pulmonary toxicity)
• Jaundice — skin or eyes turning yellow (hepatotoxicity)
• Tingling or numbness in hands or feet (peripheral neuropathy)
• Symptoms worsening despite taking medicine (possible resistance or wrong diagnosis)
• Fever, chills, or back pain developing during treatment (may indicate pyelonephritis — different treatment needed)

15. Alternatives

16. Price in Pakistan

17. FAQs

Q: Nitrofurantoin kis kaam aata hai?

A: Nitrofurantoin is used to treat uncomplicated lower urinary tract infection (UTI). It is an antibiotic that should be taken with a doctor's prescription.

Q: Nitrofurantoin ke side effects kya hain?

A: Common side effects include nausea, vomiting, and abdominal pain. Brown or dark discolouration of urine is normal. See a doctor immediately if chest pain or difficulty breathing occurs.

Q: Nitrofurantoin kaise lena hai?

A: As per your doctor's instructions, complete the full course. Taking it with food is preferable to reduce stomach upset.

Q: Nitrofurantoin ki Pakistan mein price kya hai?

A: The price depends on the pharmacy and pack size. Verify the current rate at a local store or online listing.

Q: Nitrofurantoin se peshaab ka rang kyun badalta hai?

A: Nitrofurantoin can give urine a brown or dark colour — this is normal and harmless. However, if colour change is accompanied by pain or fever, inform your doctor.

18. Medical Review

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-06-17

19. Disclaimer

The information on this page is for awareness only. It is not medical advice. Always consult your doctor or pharmacist before taking any medicine. PakVita is not responsible for any harm.