GNH USA

Europe — EMA

Macrodantin

GNH USA supplies Macrodantin (Nitrofurantoin), a nitrofuran antibiotic for uncomplicated urinary tract infections and cystitis. Request pricing for supply.

Nitrofurantoin

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What is Nitrofurantoin?

Nitrofurantoin, the active ingredient in Macrodantin, is a nitrofuran antibiotic presented as an oral tablet for oral use. It treats uncomplicated urinary tract infections and cystitis by targeting bacterial metabolism. GNH USA supplies Macrodantin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

What is Nitrofurantoin used for?

Macrodantin is a nitrofuran antibiotic used to manage infections of the urinary tract. It acts directly on bacterial pathogens that cause these conditions. - Uncomplicated urinary tract infection: eradicates causative bacteria and resolves symptoms. - Acute cystitis: clears infection in the bladder and alleviates discomfort. - Prophylaxis of recurrent urinary tract infections: reduces the frequency of repeat infections when used as directed.

What are the side effects of Nitrofurantoin?

Common Side Effects: - Nausea: mild to moderate upset stomach. - Loss of appetite: reduced desire to eat. - Diarrhea: loose stools occurring during therapy. - Headache: transient mild headache.

Serious or Rare Side Effects: - Pulmonary toxicity: interstitial lung disease presenting with cough and dyspnea. - Hepatic injury: elevated liver enzymes or jaundice. - Peripheral neuropathy: tingling or numbness in extremities.

What precautions apply to Nitrofurantoin?

Before prescribing Macrodantin, consider the following precautions. - Renal function: assess creatinine clearance; avoid if severely impaired. - Pregnancy: category B, but avoid use near term due to potential fetal risk. - G6PD deficiency: contraindicated because of hemolysis risk. - Elderly patients: monitor for reduced renal clearance and increased toxicity. - Antacid use: may decrease absorption; separate dosing by at least 2 hours. - Store at room temperature: keep in original container, protect from moisture.

What does Nitrofurantoin interact with?

Nitrofurantoin may interact with several medicines; monitor accordingly. Major Interactions (Avoid): - Antacids: reduce drug absorption, diminishing efficacy. - Probenecid: increases nitrofurantoin plasma levels, raising toxicity risk. - Warfarin: may enhance anticoagulant effect, requiring INR monitoring. Moderate Interactions (Monitor Closely): - Diuretics: affect renal function and drug excretion. - NSAIDs: potential additive renal impairment. - Oral contraceptives: possible reduction in contraceptive effectiveness.

Frequently asked questions

What is Macrodantin used for?+
Macrodantin contains nitrofurantoin, an antibiotic indicated for the treatment of uncomplicated urinary tract infections and acute cystitis. It may also be prescribed for prophylaxis of recurrent urinary infections when appropriate.
How does nitrofurantoin work?+
Nitrofurantoin is reduced by bacterial enzymes to reactive metabolites that damage bacterial DNA, ribosomal proteins, and other essential macromolecules. This multi‑targeted attack disrupts bacterial carbohydrate metabolism, leading to cell death, especially in urinary pathogens.
What is the usual dose of Macrodantin?+
The dosage of Macrodantin is determined by the prescribing clinician based on the infection type, severity, renal function, and patient characteristics. Patients should follow the prescriber’s instructions and the label directions.
Is Macrodantin safe during pregnancy or breastfeeding?+
Nitrofurantoin is classified as pregnancy category B, indicating no proven risk in animal studies but limited human data. It is generally avoided near term. Limited data suggest it is compatible with breastfeeding, but clinicians should weigh benefits against potential risks.
How do I order Macrodantin from GNH USA?+
To order, submit an enquiry on the product page at gnh-usa.com, specifying the required quantity. GNH USA works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details, and any required import documentation.
How does Macrodantin compare with other urinary antibiotics?+
Compared with agents such as trimethoprim‑sulfamethoxazole or fluoroquinolones, nitrofurantoin offers a narrow spectrum focused on common urinary pathogens and achieves high urinary concentrations with limited systemic exposure. Resistance rates are generally lower, but it is unsuitable for patients with poor renal function.
How should Macrodantin be stored and handled?+
Store Macrodantin tablets at room temperature, below 25 °C, in the original blister pack or container. Protect from moisture and direct sunlight to maintain stability throughout its shelf life.
How is Macrodantin administered?+
Macrodantin is taken orally, usually with food or milk to improve tolerance. The tablet should be swallowed whole with a full glass of water and not crushed or chewed unless directed by a healthcare professional.
What are the most serious risks associated with Macrodantin?+
Serious adverse reactions include pulmonary toxicity, hepatic injury, and peripheral neuropathy. Patients should seek immediate medical attention if they develop persistent cough, shortness of breath, jaundice, or unexplained numbness or tingling.
Who should not use Macrodantin?+
Macrodantin should be avoided in patients with severe renal impairment (creatinine clearance <30 mL/min), known hypersensitivity to nitrofurantoin, G6PD deficiency, or those in the later stages of pregnancy. Clinicians should also exercise caution in the elderly and those on interacting medications.
Information provided on this page is for educational use by procurement and clinical professionals. Always consult a licensed healthcare provider for medical advice and prescribing decisions. GNH USA supplies this product subject to applicable regulatory and licensing requirements.

Product details

Drug
Nitrofurantoin
Route
Oral Use
Manufacturer
Amdipharm Limited
Origin
EU

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