Europe — EMA
Nitrofurantoin Olikla (Nitrofurantoin, Macrocrystalline)
GNH USA supplies Nitrofurantoin Olikla (Nitrofurantoin), a nitrofuran antibiotic for uncomplicated urinary tract infections.
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What is Nitrofurantoin, Macrocrystalline?
Nitrofurantoin, the active ingredient in Nitrofurantoin Olikla, is a nitrofuran antibiotic presented as a macrocrystalline oral formulation for systemic use. It is indicated for the treatment of uncomplicated urinary tract infections, particularly cystitis, in adult patients, and is commonly used where bacterial susceptibility to nitrofurantoin has been confirmed.
GNH USA supplies Nitrofurantoin Olikla as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with established logistics for timely delivery and regulatory compliance across multiple regions.
What is Nitrofurantoin, Macrocrystalline used for?
Nitrofurantoin Olikla is used to treat bacterial infections of the lower urinary tract.
Uncomplicated urinary tract infection (cystitis): eradicates susceptible uropathogens, reduces bacterial load, and relieves dysuria, frequency, and urgency. Acute uncomplicated lower urinary tract infection: provides rapid bactericidal activity to prevent symptom worsening and potential upper tract involvement. Urinary tract infection caused by susceptible bacteria: achieves swift bacterial clearance in the bladder, facilitating symptom resolution and reducing recurrence risk.
What are the side effects of Nitrofurantoin, Macrocrystalline?
Nitrofurantoin Olikla may cause a range of adverse reactions, varying from mild to severe.
Common Side Effects: - Nausea: mild gastrointestinal upset that may resolve with continued therapy. - Loss of appetite: decreased desire to eat, often transient. - Headache: mild to moderate head discomfort. - Diarrhea: loose stools, usually self‑limiting.
Serious or Rare Side Effects: - Pulmonary toxicity: interstitial pneumonitis or fibrosis requiring discontinuation. - Hepatic injury: hepatitis or liver enzyme elevation. - Severe allergic reactions: rash, urticaria, or anaphylaxis. - Hemolytic anemia: especially in patients with G6PD deficiency.
What precautions apply to Nitrofurantoin, Macrocrystalline?
Before prescribing Nitrofurantoin Olikla, clinicians should consider several safety precautions.
- Renal function: assess creatinine clearance and avoid use in patients with markedly reduced renal function. - Pregnancy: avoid during the first trimester and near term unless benefits outweigh potential risks. - Elderly patients: monitor for signs of toxicity and adjust therapy as needed. - Drug interactions: review concomitant medications for potential absorption or metabolic interactions. - Store at room temperature: keep in the original packaging, protect from moisture and heat.
What does Nitrofurantoin, Macrocrystalline interact with?
Nitrofurantoin Olikla can interact with other medicines, affecting its absorption or safety profile.
Major Interactions (Avoid): - Antacids containing magnesium or aluminum: significantly reduce nitrofurantoin absorption. - Probenecid: may increase nitrofurantoin plasma concentrations, raising toxicity risk.
Moderate Interactions (Monitor Closely): - Warfarin: nitrofurantoin may potentiate anticoagulant effect, requiring INR monitoring. - Diabetes medications: may alter glucose control, necessitating blood sugar checks. - Other antibiotics: concurrent use may lead to antagonistic effects or increased adverse events.



