Description:

Nitrofurantoin 100 mg Hard Capsules is an antibiotic specifically used to treat and prevent uncomplicated urinary tract infections (UTIs) caused by susceptible bacteria, such as Escherichia coli, enterococci, staphylococci, and certain other Gram-positive and Gram-negative organisms. It works by interfering with bacterial enzyme systems and is concentrated in urine for effective action in the urinary tract.

Prescription:

• Yes

Therapeutic Category:

• Antibiotic / Urinary Anti-infective / Nitrofuran (ATC Code: J01XE01)

Active Ingredients/Composition:

• Nitrofurantoin 100 mg

Variant:

• 100 mg hard capsules (macrocrystalline form; may appear as opaque yellow or gray/beige capsules depending on specific imprint)

Consume Type:

• Oral

Directions/Usage:

• Take with food or milk to improve absorption and reduce stomach upset. For treatment of uncomplicated UTIs: typically 100 mg every 12 hours (for dual-release forms) or 50-100 mg 4 times daily (for immediate-release), usually for 5-7 days. For prophylaxis: 50-100 mg once daily at bedtime. Swallow whole with water; do not crush or chew. Follow doctor’s exact prescription and complete the full course. Dosage for children is weight-based and determined by a healthcare professional.

Common Side Effects:

• Nausea, vomiting, loss of appetite, headache, dizziness, diarrhea, flatulence, gas, dark yellow or brown urine (harmless), and mild gastrointestinal upset. Rare but serious: pulmonary reactions, peripheral neuropathy, or hypersensitivity.

Package Type:

• Blister packs

Storage Advice:

• Store at room temperature (15-25°C or below 25°C), in a dry place, protected from light and moisture. Keep in original packaging. Do not freeze. Keep out of reach of children.

Safety Advice:

• Prescription only. Contraindicated in patients with severe renal impairment (eGFR <45-60 mL/min), G6PD deficiency, known hypersensitivity, or in late pregnancy (near term) due to risk of hemolytic anemia in newborn. Avoid long-term use without monitoring. May cause lung problems with prolonged therapy; discontinue if unusual symptoms occur. Take with food. Consult doctor if pregnant, breastfeeding, or with liver/kidney issues. May interfere with some lab tests. Seek immediate help for severe reactions like breathing difficulty, rash, or numbness.

Product Substitutes:

• Macrobid (nitrofurantoin monohydrate/macrocrystals 100 mg)
• Macrodantin (nitrofurantoin macrocrystals)
• Generic Nitrofurantoin 100 mg capsules (various manufacturers)
• Furadantin or other nitrofurantoin brands

Manufacturer/Marketer:

• Mylan

Country of Origin:

• United Kingdom