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Radinor 400mg Tablet

Radinor 400mg Tablet is used to treat bacterial infections caused by susceptible bacteria. It is indicated in the treatment of urinary tract infections, prostatitis (prostate inflammation), and gonorrhoea (a sexually transmitted disease). Additionally, it is used to treat infections of the stomach and intestine, such as traveller's diarrhoea. It contains Norfloxacin, which kills the bacteria and treats bacterial infections. In some cases, it may cause common side effects such as abdominal cramps, nausea, diarrhoea, heartburn, headache, and dizziness. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and any pre-existing medical conditions.

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Written By Santoshini Reddy G , M Pharmacy
Reviewed By Bayyarapu Mahesh Kumar , M Pharmacy
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Side effects of Radinor 400mg Tablet
Here are the 7 steps to manage Dizziness caused by medication:
  • Inform your doctor about dizziness symptoms. They may adjust your medication regimen or prescribe additional medications to manage symptoms.
  • Follow your doctor's instructions for taking medication, and take it at the same time every day to minimize dizziness.
  • When standing up, do so slowly and carefully to avoid sudden dizziness.
  • Avoid making sudden movements, such as turning or bending quickly, which can exacerbate dizziness.
  • Drink plenty of water throughout the day to stay hydrated and help alleviate dizziness symptoms.
  • If you're feeling dizzy, sit or lie down and rest until the dizziness passes.
  • Track when dizziness occurs and any factors that may trigger it, and share this information with your doctor to help manage symptoms.
Overcome Medication-Induced Nausea: A 9-Step Plan
  • Inform your doctor about the nausea and discuss possible alternatives to the medication or adjustments to the dosage.
  • Divide your daily food intake into smaller, more frequent meals to reduce nausea.
  • Opt for bland, easily digestible foods like crackers, toast, plain rice, bananas, and applesauce.
  • Avoid certain foods that can trigger nausea, such as fatty, greasy, spicy, and smelly foods.
  • Drink plenty of fluids, such as water, clear broth, or electrolyte-rich beverages like coconut water or sports drinks.
  • Use ginger (tea, ale, or candies) to help relieve nausea.
  • Get adequate rest and also avoid strenuous activities that can worsen nausea.
  • Talk to your doctor about taking anti-nausea medication if your nausea is severe.
  • Record when your nausea occurs, what triggers it, and what provides relief to help you identify patterns and manage your symptoms more effectively.
Dealing with Medication-Induced Headache:
  • Hydrate your body: Drink enough water to prevent dehydration and headaches.
  • Calm Your Mind: Deep breathing and meditation can help you relax and relieve stress.
  • Rest and Recharge: Sleep for 7-8 hours to reduce headache triggers.
  • Take rest: lie down in a quiet, dark environment.
  • Cold or warm compresses can help reduce tension.
  • Stay Upright: Maintain good posture to keep symptoms from getting worse.
  • To treat headaches naturally, try acupuncture or massage therapy.
  • Over-the-counter pain relievers include acetaminophen and ibuprofen.
  • Prescription Assistance: Speak with your doctor about more substantial drug alternatives.
  • Severe Headaches: Seek emergency medical assistance for sudden, severe headaches.
  • Frequent Headaches: If you get reoccurring headaches, consult your doctor.
  • Headaches with Symptoms: Seek medical attention if your headaches include fever, disorientation, or weakness.
  • Drink water or other clear fluids.
  • To prevent worsening of pain, limit intake of tea, coffee, or alcohol.
  • Include bland foods like rice, toast, crackers, and rice in your diet.
  • Avoid lying down immediately after eating as it may cause indigestion or heartburn.
  • Avoid acidic and spicy food as it may cause indigestion.
  • Rest well; get enough sleep.
  • Eat a balanced diet and drink enough water.
  • Manage stress with yoga and meditation.
  • Limit alcohol and caffeine.
  • Physical activities like walking or jogging might help boost energy and make you feel less tired.
Here are the precise steps to cope with diarrhoea caused by medication usage:
  • Inform Your Doctor: Notify your doctor immediately about your diarrhoea symptoms. This allows them to adjust your medication or provide guidance on managing side effects.
  • Stay Hydrated: Drink plenty of fluids to replace lost water and electrolytes. Choose water, clear broth, and electrolyte-rich drinks. Avoid carbonated or caffeinated beverages to effectively rehydrate your body.
  • Follow a Bland Diet: Eat easy-to-digest foods to help firm up your stool and settle your stomach. Try incorporating bananas, rice, applesauce, toast, plain crackers, and boiled vegetables into your diet.
  • Avoid Trigger Foods: Steer clear of foods that can worsen diarrhoea, such as spicy, fatty, or greasy foods, high-fibre foods, and dairy products (especially if you're lactose intolerant).
  • Practice Good Hygiene: Maintain good hygiene to prevent the spread of infection. To stay healthy, wash your hands frequently, clean and disinfect surfaces regularly, and avoid exchanging personal belongings with others.
  • Take Anti-Diarrheal Medications: If your doctor advises, anti-diarrheal medications such as loperamide might help manage diarrhoea symptoms. Always follow your doctor's directions.
  • Keep track of your diarrhoea symptoms. If they don't get better or worse or are accompanied by severe stomach pain, blood, or dehydration signs (like extreme thirst or dark urine), seek medical help.

Drug-Drug Interactions

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NorfloxacinMesoridazine
Critical
NorfloxacinCisapride
Critical

Drug-Drug Interactions

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NorfloxacinMesoridazine
Critical
How does the drug interact with Radinor 400mg Tablet:
Using Mesoridazine together with Radinor 400mg Tablet can increase the risk of an irregular heart rhythm that may be serious.

How to manage the interaction:
Taking Mesoridazine with Radinor 400mg Tablet is not recommended, please consult your doctor before taking it. You should seek immediate medical attention if you develop sudden dizziness, lightheadedness, fainting, shortness of breath, or heart palpitations. Do not stop using any medications without talking to a doctor.
NorfloxacinCisapride
Critical
How does the drug interact with Radinor 400mg Tablet:
Coadministration of Radinor 400mg Tablet with Cisapride can increase the risk or severity of irregular heart rhythm.

How to manage the interaction:
Taking Radinor 400mg Tablet with Cisapride together can result in an interaction, it can be taken if your doctor has advised it. However, contact a doctor immediately if you experience sudden dizziness, lightheadedness, fainting, shortness of breath, chest pain or tightness, rapid heartbeat, or memory loss. Do not discontinue any medications without consulting a doctor.
NorfloxacinSotalol
Critical
How does the drug interact with Radinor 400mg Tablet:
Coadministration of Radinor 400mg Tablet with Sotalol can increase the risk or severity of irregular heart rhythm.

How to manage the interaction:
Taking Radinor 400mg Tablet with Sotalol together is generally avoided as it can result in an interaction, it can be taken if a doctor has advised it. However, contact a doctor immediately if you experience sudden dizziness, lightheadedness, fainting, shortness of breath, chest pain or tightness, rapid heartbeat, or memory loss. Do not discontinue any medications without consulting a doctor.
NorfloxacinAmiodarone
Critical
How does the drug interact with Radinor 400mg Tablet:
The combination of Amiodarone and Radinor 400mg Tablet may significantly raise the risk of an abnormal heart rhythm.

How to manage the interaction:
Despite the fact that Amiodarone and Radinor 400mg Tablet interact, it can be taken if prescribed by a doctor. If you get dizziness, lightheadedness, fainting, or fast or racing heartbeats, consult a doctor. Do not stop taking any medications without visiting a doctor.
NorfloxacinDisopyramide
Critical
How does the drug interact with Radinor 400mg Tablet:
Coadministration of Radinor 400mg Tablet with Disopyramide can increase the risk of irregular heart rhythm.

How to manage the interaction:
Taking Radinor 400mg Tablet with Disopyramide together can result in an interaction, it can be taken if your doctor has advised it. However, contact a doctor immediately if you experience sudden dizziness, lightheadedness, fainting, shortness of breath, chest pain or tightness, rapid heartbeat, or memory loss. Do not discontinue any medications without consulting a doctor.
NorfloxacinBepridil
Critical
How does the drug interact with Radinor 400mg Tablet:
Using bepridil together with Radinor 400mg Tablet can increase the risk of an irregular heart rhythm that may be serious.

How to manage the interaction:
Taking Radinor 400mg Tablet with Bepridil is not recommended, please consult your doctor before taking it. You should seek immediate medical attention if you develop sudden dizziness, lightheadedness, fainting, or a fast or pounding heartbeat. Do not stop using any medications without talking to a doctor.
NorfloxacinInsulin degludec
Severe
How does the drug interact with Radinor 400mg Tablet:
Taking insulin degludec with Radinor 400mg Tablet affects blood glucose levels, which may cause hyperglycemia (high blood glucose) and hypoglycemia (low blood glucose) less frequently.

How to manage the interaction:
There could be a possible interaction between insulin degludec and Radinor 400mg Tablet but can be taken if prescribed by a doctor. However, consult the doctor immediately if you experience hypoglycemia or hyperglycemia. Symptoms of hypoglycemia include headache, dizziness, drowsiness, nervousness, confusion, shaking, nausea, hunger, weakness, sweating, palpitation, and rapid heartbeat. Symptoms of hyperglycemia may include increased thirst, increased hunger, and increased urination. Do not stop using any medications without talking to a doctor.
NorfloxacinToremifene
Severe
How does the drug interact with Radinor 400mg Tablet:
Using toremifene together with Radinor 400mg Tablet can increase the risk of an irregular heart rhythm that may be serious.

How to manage the interaction:
Co-administration of Radinor 400mg Tablet with Toremifene can result in an interaction, but it can be taken if your doctor has advised it. If you experience any symptoms like an irregular heartbeat, dizziness, fainting, or difficulty breathing, it is important to contact a doctor right away. Do not stop using any medications without a doctor's advice.
NorfloxacinPrednisolone
Severe
How does the drug interact with Radinor 400mg Tablet:
Co-administration of Radinor 400mg Tablet may cause tendinitis (inflammation of a tissue that attaches muscle to bone) and tendon rupture, and the risk may be increased when combined with Prednisolone. People over the age of 60 and people who have had a kidney, heart, or lung transplant may be especially at risk.

How to manage the interaction:
Although there is an interaction, Prednisolone can be taken with Radinor 400mg Tablet if prescribed by the doctor. However, if you experience pain, inflammation, or swelling of a tendon area such as the back of the ankle, biceps, shoulder, hand, or thumb, stop taking Radinor 400mg Tablet and consult a doctor. Do not discontinue any medications without consulting a doctor.
NorfloxacinCrizotinib
Severe
How does the drug interact with Radinor 400mg Tablet:
Coadministration of Radinor 400mg Tablet with Crizotinib can increase the risk or severity of irregular heart rhythm.

How to manage the interaction:
Taking Radinor 400mg Tablet with Crizotinib together can result in an interaction, it can be taken if your doctor has advised it. However, contact a doctor immediately if you experience sudden dizziness, lightheadedness, fainting, shortness of breath, chest pain or tightness, rapid heartbeat, or memory loss. Do not discontinue any medications without consulting a doctor.

Drug-Food Interactions

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NORFLOXACIN-400MGCaffeine containing foods/drinks, Fruit juices
Moderate

Drug-Food Interactions

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NORFLOXACIN-400MGCaffeine containing foods/drinks, Fruit juices
Moderate
Common Foods to Avoid:
Cocoa, Coffee, Dark Chocolate, Energy Drinks With Caffeine, Green Tea, Kola Nut, Tea, Tiramisu, Orange Juice

How to manage the interaction:
Consuming dairy products, cereal, or orange juice with Radinor 400mg Tablet can interfere with its absorption and reduce its levels in the blood and urinary tract. Using caffeine together with Radinor 400mg Tablet may increase the effects of caffeine. Radinor 400mg Tablet dose should be taken at least one hour before or two hours after consuming dairy products, cereal, or orange juice. Avoid taking caffeine with Radinor 400mg Tablet. Contact a doctor if you experience headaches, tremors, restlessness, nervousness, insomnia, and increased blood pressure or heart rate.

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Author Details

Santoshini Reddy GDoctor badge

Written By

Santoshini Reddy G

M Pharmacy

Bayyarapu Mahesh KumarDoctor badge

Reviewed By

Bayyarapu Mahesh Kumar

M Pharmacy

Last Updated

Nov 21, 2025 | 11:21 AM IST

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