Generic Nitrofurantoin

Buy Generic Nitrofurantoin () without prescription in Canada

At our Canadian pharmacy, you can purchase Nitrofurantoin without a prescription, with delivery throughout Canada within 5-14 days. Discreet and anonymous packaging.
Nitrofurantoin is used for the treatment and prevention of uncomplicated urinary tract infections (UTIs) caused by susceptible bacteria. The medication is a urinary antibiotic that works by damaging bacterial DNA and inhibiting key bacterial enzymes, effectively treating infections while not affecting other parts of the body.
The usual dosage of Nitrofurantoin for adults is 50‑100 mg taken four times daily (or 100 mg twice daily for the macrocrystal/monohydrate formulation) for 5‑7 days, as directed by a healthcare professional.
The administration form is capsules (50 mg, 100 mg) or oral suspension.
The effect of the medication begins within 1‑2 hours after oral intake.
The duration of action is typically 6‑8 hours, requiring multiple daily doses.
Alcohol consumption is not recommended during treatment.
The most common side effects are nausea and headache.
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Common use Nitrofurantoin

Nitrofurantoin is an antibiotic used primarily to treat and prevent urinary tract infections (UTIs). It works by interfering with bacterial enzymes, damaging the bacteria's DNA and killing them. The drug is effective against most common urinary pathogens, including E. coli. It is not suitable for infections outside the urinary tract.

Basic Nitrofurantoin Information

• INN (International Nonproprietary Name): Nitrofurantoin
• Brand names available in Canada: Macrobid®, Macrodantin®, generics (Nitrofurantoin Teva, Apo‑Nitrofurantoin, Sandoz Nitrofurantoin)
• ATC Code: J01XE01
• Forms and dosages: Capsules (50 mg, 100 mg), oral suspension (25 mg/5 mL)
• Manufacturers in Canada: Teva Canada Limited, Apotex Inc., Sandoz Canada Inc., Pharmascience Inc.
• Registration status in Canada: Approved by Health Canada (multiple DINs)
• OTC / Rx classification: Prescription only (Rx) – not legally sold over‑the‑counter in Canadian pharmacies

Dosage and direction

Nitrofurantoin is typically taken orally with food to improve absorption and reduce stomach upset. The dosage depends on the type and severity of the infection, as well as the patient’s age and kidney function. It is important to complete the full course even if symptoms improve early. Always follow your doctor's instructions carefully.

Precautions

Before using nitrofurantoin, inform your doctor if you have kidney disease, liver problems, or glucose-6-phosphate dehydrogenase (G6PD) deficiency. Prolonged use may lead to peripheral neuropathy or lung toxicity. Drink plenty of fluids during treatment to help flush out the bacteria. The medication may turn urine a dark yellow or brown color — this is harmless.

Contraindications

Nitrofurantoin is contraindicated in patients with significant renal impairment (creatinine clearance

Possible side effect

Common side effects include nausea, headache, loss of appetite, and flatulence. Some patients may experience dizziness or drowsiness. Serious side effects such as lung inflammation, liver damage, or nerve pain are rare but require immediate attention. Allergic reactions and skin rashes may also occur.

Drug interaction

Nitrofurantoin may interact with antacids containing magnesium trisilicate, which can reduce its absorption. It should also be used cautiously with drugs that affect kidney function. Concurrent use with probenecid or sulfinpyrazone may increase nitrofurantoin levels, raising the risk of toxicity. Always tell your healthcare provider about all medications you are taking.

Missed dose

If you miss a dose, take it as soon as you remember, unless it is nearly time for your next scheduled dose. Do not double the dose to make up for a missed one. Try to take the medication at evenly spaced intervals. Skipping doses can reduce its effectiveness.

Overdose

Symptoms of overdose may include nausea, vomiting, and gastric irritation. In severe cases, nerve damage or lung issues could occur. Seek emergency medical attention immediately. Treatment is generally supportive, with monitoring of kidney and liver function.

Storage

Store nitrofurantoin at room temperature away from light and moisture. Keep the bottle tightly closed and out of reach of children. Do not store in the bathroom. Discard any unused medication after the expiration date.

Disclaimer

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. The specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.

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