Skip to content
Furadantin

Furadantin

Nitrofurantoin

Nitrofurantoin 50mg and 100mg tablets, used for cystitis and urinary tract infection. Bacterial flavoproteins reduce it to reactive intermediates.

All strengths and pack prices
StrengthPackPricePer unit
50mg100 tablets$78.00$0.78
50mg200 tablets$132.00$0.66
50mg300 tablets$177.00$0.59
100mg30 tablets$33.30$1.11
100mg60 tablets$56.40$0.94
100mg90 tablets$77.40$0.86
100mg120 tablets$93.60$0.78
100mg180 tablets$120.60$0.67
100mg360 tablets$216.00$0.60
Category
Antibiotics
Active ingredient
Nitrofurantoin
Route
Oral use
Form
Tablet
Strengths
50 · 100mg

You will receive a quality generic equivalent, depending on stock.

No prescription needed: we place your order for Furadantin on your behalf.

Alternative names
Macrobid; Macrodantin
Therapeutic class
Antibacterial; Nitrofuran
Pharmacological class
Nitrofuran Antibiotic
Known off-label uses
urinary tract infection prophylaxis
Minor side effects
nausea; headache; flatulence
Moderate side effects
diarrhoea; abdominal pain
Dosage forms
Tablet
Administration route
Oral use
Onset time
1–2 hours
Duration
3–7 days
Storage instructions
Store in its original packaging at room temperature away from moisture.
Drug interactions
antacids containing magnesium trisilicate; probenecid
Age restrictions
Suitable for children and adults; dosage adjusted for body weight.
Contraindications

hypersensitivity to nitrofurantoin; anuria; oliguria; renal impairment; g6pd deficiency

Precautions and warnings

may discolour urine; monitor for pulmonary respiratory symptoms; use with caution in elderly patients

Serious side effects

peripheral neuropathy, requires immediate medical attention; pulmonary fibrosis, requires immediate medical attention; hepatitis, requires immediate medical attention

Patient summary

Nitrofurantoin 50mg and 100mg tablets, used for cystitis and urinary tract infection. Bacterial flavoproteins reduce it to reactive intermediates.

Mechanism of action

Nitrofurantoin is reduced by bacterial flavoproteins to reactive intermediates that inactivate or alter bacterial ribosomal proteins and other macromolecules. This action inhibits aerobic energy metabolism and protein synthesis, resulting in bactericidal activity specifically within the urinary tract.

Pregnancy and breastfeeding

Pregnancy: Can be used if benefits outweigh risks, but avoid at term due to risk of neonatal haemolytic anaemia. Breastfeeding: Can be used with caution during breastfeeding.

Furadantin is a brand of nitrofurantoin, an antibiotic used to treat cystitis and urinary tract infection. The same active ingredient is also sold as Macrobid and Macrodantin, supplied as a tablet in 50mg and 100mg strengths.

Buying Furadantin online

Generic nitrofurantoin is often far more affordable than the original brand, providing a practical solution for expats and those living at a distance from a well stocked pharmacy. As with all antibiotic therapy, this medication is best used under the guidance of a doctor.

What you will receive

Furadantin is the originator brand name, made by Alvogen. We use it here to identify the medicine only; we are not affiliated with Alvogen and do not ship the original Furadantin.

  • You receive a generic equivalent: the same active ingredient (Nitrofurantoin) at the same dose, mostly recognised branded generics from vetted manufacturers.
  • The exact brand supplied depends on what is in stock at the dispatching warehouse.
  • Inactive ingredients, tablet appearance and packaging can differ from the original brand; the active ingredient and dose are the same.

Are all generics really the same? Read the honest answer.