Product image of Nitrofurantoin Pharmsol (Nitrofurantoin) supplied by GNH India

Nitrofurantoin Pharmsol

Active Ingredient:
Nitrofurantoin
Origin:
EU

Nitrofurantoin Pharmsol (Nitrofurantoin)

Nitrofurantoin, the active ingredient in Nitrofurantoin Pharmsol, is a nitrofuran antibiotic presented as an oral dosage form for oral use. It is employed to treat uncomplicated urinary tract infections in adult patients, targeting susceptible bacteria within the urinary tract and helps to alleviate associated symptoms such as dysuria and frequency while minimizing systemic exposure.

GNH India supplies Nitrofurantoin Pharmsol as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with reliable quality assurance and on‑time delivery across multiple regions.

Manufacturer / TM Owner

Pharmsol Europe Limited

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Indications & Clinical Uses

  • Nitrofurantoin is indicated for bacterial infections of the urinary tract, particularly uncomplicated infections.
  • Uncomplicated urinary tract infection: eliminates the causative bacteria and resolves infection symptoms.
  • Acute cystitis: provides targeted antibacterial activity within the bladder, reducing inflammation and discomfort.
  • Prophylaxis of recurrent urinary tract infections: reduces the frequency of future episodes when used as a preventive regimen.

How It Works

  • Nitrofurantoin is reduced by bacterial flavoprotein enzymes to reactive nitro‑reduced intermediates. These intermediates bind to bacterial DNA and other macromolecules, causing strand breakage and inhibition of protein synthesis. The resulting damage impairs bacterial replication and leads to cell death, while the drug is concentrated in the urine, providing high local activity against susceptible uropathogens.

Side Effects

Nitrofurantoin may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

  • Nausea
  • Loss of appetite
  • Headache
  • Diarrhea

Serious or Rare Side Effects

  • Pulmonary toxicity (interstitial pneumonitis or fibrosis)
  • Hepatic injury (elevated enzymes, hepatitis)
  • Severe allergic reactions, including Stevens‑Johnson syndrome and toxic epidermal necrolysis

Precautions & Warnings

  • When prescribing Nitrofurantoin Pharmsol, several safety considerations are recommended.
  • Renal function assessment: avoid use in patients with creatinine clearance below 60 mL/min.
  • Pregnancy consideration: prescribe only if clearly needed, as safety data are limited.
  • G6PD deficiency: contraindicated due to risk of hemolysis.
  • Drug interaction review: evaluate concomitant medications that may affect absorption or excretion.
  • Patient counseling: advise completion of full prescribed course even if symptoms improve.
  • Store at ambient temperature: keep in original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Nitrofurantoin may interact with other medicines; some combinations should be avoided while others require monitoring.

Major Interactions (Avoid)

  • Antacids containing magnesium or aluminum: reduce nitrofurantoin absorption.
  • Probenecid: decreases urinary excretion, lowering efficacy.
  • Warfarin: may potentiate anticoagulant effect, increasing bleeding risk.

Moderate Interactions (Monitor Closely)

  • Trimethoprim‑sulfamethoxazole: additive nephrotoxicity risk.
  • Fluoroquinolones: combined use may increase tendon rupture risk.
  • Diuretics: may raise urinary concentration of nitrofurantoin, enhancing side effects.

Frequently Asked Questions

Nitrofurantoin Pharmsol is used to treat uncomplicated urinary tract infections caused by susceptible bacteria. It works by delivering high concentrations of the active ingredient to the urine, where it eradicates the pathogens responsible for cystitis and related infections.

Nitrofurantoin is converted by bacterial enzymes into reactive intermediates that bind to DNA and other macromolecules, causing damage that inhibits bacterial replication and leads to cell death. The drug concentrates in the urinary tract, providing targeted antibacterial activity.

The dosage of Nitrofurantoin Pharmsol is determined by the prescribing clinician based on the patient’s condition, renal function, and local treatment guidelines. The prescriber will select the appropriate strength, frequency, and duration for each individual case.

Safety of Nitrofurantoin Pharmsol in pregnancy or while breastfeeding has not been definitively established. It should be used only when clearly needed and after careful risk‑benefit assessment by the healthcare provider.

To order Nitrofurantoin Pharmsol, submit an enquiry on the product page at gnhindia.com with the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

The most common alternative for uncomplicated urinary tract infections is trimethoprim‑sulfamethoxazole. Nitrofurantoin offers a different mechanism of action and is less likely to encounter resistance in many regions, but it requires adequate renal function for urinary concentration, whereas trimethoprim‑sulfamethoxazole has broader systemic activity.

Store Nitrofurantoin Pharmsol at ambient temperature, below 25 °C, in its original container. Protect the product from moisture, direct sunlight and extreme heat to maintain stability and potency throughout its shelf life.

Nitrofurantoin Pharmsol is taken orally, usually with food or a full glass of water to reduce gastrointestinal irritation. The tablet should be swallowed whole and not crushed or chewed unless specifically instructed by a healthcare professional.

Serious risks include pulmonary toxicity (interstitial pneumonitis or fibrosis), hepatic injury, severe allergic reactions such as Stevens‑Johnson syndrome, and hemolytic anemia in patients with G6PD deficiency. Patients should seek immediate medical attention if they experience breathing difficulty, jaundice, rash, or dark urine.

Nitrofurantoin Pharmsol should be avoided in patients with severe renal impairment (creatinine clearance <60 mL/min), known hypersensitivity to nitrofurantoin, G6PD deficiency, or in those who have experienced serious pulmonary or hepatic reactions to the drug.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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