Noroxin (Norfloxacin) Customer Reviews


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Norfloxacin serves as a therapeutic agent for a diverse range of bacterial infections. This pharmaceutical substance pertains to the classification of quinolone antibiotics. Its mechanism of action involves the inhibition of bacterial growth.

Uses and Dosage

Administer this medication orally in accordance with the instructions provided by your healthcare professional, generally twice daily (every 12 hours), accompanied by a full glass of water (8 ounces/240 milliliters). Refrain from consuming any food or dairy products (such as milk or yogurt) for a period of 2 hours prior to or 1 hour subsequent to the ingestion of norfloxacin. Unless otherwise advised by your doctor, ensure adequate fluid intake throughout the course of this treatment.

The prescribed dosage and duration of therapy are contingent upon your specific medical condition and your response to the treatment regimen.

Consume this medication at a minimum of 2 hours prior to or 2 hours following the intake of other substances that could potentially diminish its efficacy. Examples of such substances encompass quinapril, sucralfate, vitamins/minerals (inclusive of iron and zinc), as well as products containing magnesium, aluminum, or calcium (such as antacids, didanosine solution, and calcium-enriched juices), among others.

Exercise caution with the consumption of substantial quantities of caffeine (such as coffee and energy drinks) as this medication may potentiate and/or prolong the effects of caffeine.

For optimal outcomes, adhere to a consistent schedule when administering this antibiotic, evenly spacing the doses. To facilitate adherence, endeavor to take this medication at the same designated times each day.

Persist in the consumption of this medication until the full prescribed quantity has been completed, even if symptoms abate within a few days. Premature discontinuation of the medication may precipitate a recurrence of the infection.

Side Effects

Some side effects may occur that usually do not need medical attention:

  • unusual bruising/bleeding
  • signs of kidney problems (such as change in the amount of urine)
  • nausea/vomiting that doesn’t stop
  • loss of appetite
  • stomach/abdominal pain
  • yellowing eyes/skin
  • dark urine

Inform your healthcare provider immediately if you experience any serious side effects:

  • severe dizziness
  • fainting
  • fast/irregular heartbeat
  • sudden/severe pain in the stomach/chest/back, cough, shortness of breath


Prior to initiating norfloxacin, apprise your healthcare provider or pharmacist of any known allergy to this medication, as well as to other quinolone antibiotics like ciprofloxacin, gemifloxacin, and levofloxacin, or any other existing allergies. Notably, this product may comprise inert constituents capable of triggering allergic reactions or other complications.

Before commencing usage of this medication, communicate your medical history to your doctor or pharmacist, with particular attention to conditions such as joint or tendon issues, kidney disorders, mental or mood disorders (such as depression), myasthenia gravis (a specific muscle ailment), peripheral neuropathy (nerve afflictions), seizure disorders, blood vessel anomalies, arteriosclerosis, hypertension, and specific genetic conditions (e.g., Marfan syndrome, Ehlers-Danlos syndrome).

Norfloxacin bears the potential to induce a condition that impacts the heart rhythm known as QT prolongation. This manifestation, though rare, can lead to severe (and occasionally fatal) instances of rapid or irregular heartbeats, along with associated symptoms such as pronounced dizziness or fainting, necessitating prompt medical intervention.

Instances of low blood potassium or magnesium levels can further predispose you to QT prolongation. This vulnerability may intensify when using specific medications (such as diuretics or “water pills”) or in the presence of conditions like profuse perspiration, diarrhea, or vomiting.

In certain instances, this medication may induce significant fluctuations in blood sugar levels, particularly among individuals with diabetes. Adhere to recommended blood sugar monitoring, and share the results with your healthcare providerl. Vigilance towards symptoms of heightened blood sugar (such as increased thirst and urination) and lowered blood sugar (marked by sudden sweating, tremors, rapid heart rate, hunger, visual disturbances, dizziness, or tingling extremities) is advised. Maintain a supply of glucose tablets or gel to address low blood sugar. In the absence of these glucose sources, expediently elevate blood sugar levels by consuming rapidly-absorbing sugars such as table sugar, honey, candies, or fruit juice. Any resulting reactions and the utilization of this product should be promptly reported to your doctor. To forestall low blood sugar incidents, adhere to regular meal schedules and avoid meal skipping. In the event of any reaction, your doctor might consider adjusting your diabetes management or transitioning you to an alternative antibiotic.

This medication has the potential to induce dizziness. The combined use of alcohol or marijuana may exacerbate this dizziness. Activities requiring alertness, such as driving or operating machinery, should be approached with caution.

Increased sensitivity to sunlight is a potential effect of this medication. Minimize sun exposure and eschew tanning beds and sunlamps. When outdoors, employ sunscreen and don protective clothing. Should sunburn or skin blistering/redness occur, promptly inform your doctor.

Norfloxacin might undermine the efficacy of live bacterial vaccines (e.g., typhoid vaccine). It is important to notify your healthcare professional of your use of norfloxacin prior to undergoing any immunizations or vaccinations.

Exercise caution when administering this drug to children, as they could be at an elevated risk of joint or tendon issues. Discussing these potential risks and benefits with a medical professional is advised.

In older adults, there exists an increased susceptibility to tendon problems (particularly when concurrent corticosteroid use is present), QT prolongation, and rupture of the main blood vessel (aorta).

During pregnancy, the utilization of this medication should only occur when the necessity is unequivocally established. Deliberate the potential risks and advantages with your doctor.

The transmission of this drug into breast milk remains unverified. Similar medications have been found to pass into breast milk. Consult with your doctor before breastfeeding.

Form and Strength

Noroxin is available in the following forms and strengths:

  • norfloxacin tablet:

    • 400mg
    • 800mg


Why take Noroxin on an empty stomach?

Taking it meals makes it less effective due to less absorption of this medicine. Therefore, you should take the tablet 1 hour before or at least 2 hours after a meal or ingestion of milk and/or other dairy products.

Does Noroxin make you tired?

Noroxin may cause some people to become dizzy, lightheaded, drowsy, or less alert than they are normally.



Additional information

Generic name:





400mg, 800mg

Quantities Available:

40, 100

Can Drug Store has provided information from third parties intended to increase awareness and does not contain all the information about Noroxin (Norfloxacin). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Noroxin (Norfloxacin).