Nalidixic Acid
About Nalidixic Acid
Nalidixic Acid is an oral tablet used to treat urinary tract infections (UTIs) caused by certain types of bacteria. It is prescribed to clear up infections in the urinary tract, helping to relieve painful symptoms and prevent the infection from spreading. This medicine is specifically designed to target and stop the growth of the bacteria responsible for these infections.
To get the best results, you must take Nalidixic Acid consistently at evenly spaced intervals throughout the day as directed by your doctor. It is generally recommended to take this medicine on an empty stomach, either one hour before or two hours after your meals, with a full glass of water. Drinking plenty of water during your course of treatment also helps flush your urinary tract and supports recovery.
While taking Nalidixic Acid, you might experience mild side effects such as nausea, an upset stomach, or mild dizziness. However, you should contact your doctor immediately if you experience serious issues, such as severe skin reactions, extreme sensitivity to sunlight, or sudden changes in your vision.
Talk to your doctor before starting Nalidixic Acid if you have a history of seizures, liver damage, kidney disease, or joint problems. Do not take this if you have a known genetic condition called G6PD deficiency, or a history of the blood disorder porphyria.
This medicine can interact with certain other treatments, such as blood thinners or antacids, which can either increase your risk of bleeding or make this antibiotic less effective. If you are pregnant, breastfeeding, or an older adult, you must consult your doctor to discuss whether this medication is safe for you to use.
Uses of Nalidixic Acid
Medicinal Benefits
Nalidixic Acid helps relieve the symptoms of urinary tract infections (UTIs), making it easier to urinate comfortably and return to your daily routine.
Benefits may include:
- Helps relieve burning and pain during urination.
- Reduces frequent and urgent urges to urinate.
- Improves comfort by easing lower abdominal discomfort caused by UTIs.
- Supports faster recovery from bacterial UTIs.
- Helps clear the infection and restore normal urinary health.
- Promotes better daily comfort by reducing UTI-related symptoms.
Directions for Use
- Take this medicine by mouth, usually on an empty stomach (1 hour before or 2 hours after a meal) to ensure it is absorbed properly.
- Swallow the tablet whole with a full glass of water. Do not crush, chew, or break the tablet.
- Drink plenty of fluids throughout the day while taking this medication to keep your urine flowing and help clear the infection.
- Always complete the full course of treatment prescribed by your doctor, even if your symptoms improve after a few days. Stopping the medicine too early may allow the infection to return.
Storage
Side Effects of Nalidixic Acid
Common Side Effects (Usually mild):
- Nausea or vomiting
- Upset stomach or mild abdominal pain
- Mild dizziness or drowsiness
- Increased sensitivity of the skin to sunlight
Serious Side Effects (Call a doctor right away):
- Severe sunburn, blistering, or skin rashes after spending time in the sun
- Changes in vision, such as double vision or difficulty focusing
- Seizures, severe headaches, or confusion
- Sudden pain, swelling, or tearing in your tendons (such as the back of your ankle)
- Signs of a severe allergic reaction, including swelling of the face, tongue, or throat, severe hives, and difficulty breathing
Drug Warnings
- Check the packaging before use: Make sure the tablet pack is sealed, undamaged, and not past its expiry date before taking the medicine.
- Protect yourself from sunlight: Wear sunglasses, a wide-brimmed hat, and protective clothing when outdoors. This medicine can make your skin and eyes more sensitive to sunlight.
- Report joint or tendon pain: Stop taking the medicine and contact your doctor immediately if you develop sudden pain, swelling, or stiffness in a joint or tendon.
- Be careful with driving: Avoid driving, using tools, or operating machinery if you feel drowsy or have blurred vision after taking this medicine.
- Monitor your symptoms: Contact your doctor if your urinary symptoms do not start improving within 48 hours of beginning treatment.
Drug Interactions
- Blood thinners (e.g, warfarin): Nalidixic Acid can increase the effect of these medicines, which may raise your risk of bleeding.
- Antacids and mineral supplements (e.g., magnesium hydroxide, aluminium hydroxide, iron, zinc, calcium): These products can bind to Nalidixic Acid in your stomach, preventing your body from absorbing it.
- Other antibiotics used to treat UTIs (e.g., nitrofurantoin): Taking nitrofurantoin at the same time can interfere with Nalidixic Acid and stop it from working effectively.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
cautionThe interaction of alcohol with Nalidixic Acid is unknown. Please consult a doctor before consuming alcohol while using Nalidixic Acid.
Pregnancy
cautionNalidixic Acid is a category C pregnancy drug and is given to pregnant women only if the doctor thinks benefits outweigh risks. Please consult a doctor if you are pregnant.
Breast Feeding
unsafeNalidixic Acid is not recommended for breastfeeding mothers as it may be excreted in breastmilk. Please consult a doctor if you are breastfeeding.
Driving
safe if prescribedNalidixic Acid usually does not affect your ability to drive or operate machinery.
Liver
cautionTake Nalidixic Acid with caution, especially if you have a history of Liver diseases/conditions. The dose may be adjusted by your doctor as required.
Kidney
cautionTake Nalidixic Acid with caution, especially if you have a history of Kidney diseases/conditions. The dose may be adjusted by your doctor as required.
Children
cautionNalidixic Acid is not recommended for infants below 3 months, as the safety and effectiveness were not established. However, Nalidixic Acid should be used in children below 18 years if prescribed by a doctor only.
Habit Forming
Diet & Lifestyle Advise
- Stay well hydrated: Drink 8-10 glasses of water each day to help flush bacteria from your urinary tract and support healthy kidney function.
- Protect your skin: Avoid excessive exposure to sunlight, sunlamps, and tanning beds. When outdoors, wear protective clothing and apply sunscreen to reduce the risk of sun sensitivity.
- Space out supplements: Do not take antacids or supplements containing calcium, iron, magnesium, or zinc within 2 hours of your medicine, as they can reduce how well it is absorbed.
- Limit bladder irritants: Reduce your intake of caffeine and alcohol, as they can irritate the bladder and worsen symptoms such as burning during urination and frequent urges to urinate.
Special Advise
- If Nalidixic Acid is continued for more than 2 weeks, blood tests are recommended to monitor blood counts and kidney and liver function periodically.
Patients Concern
Disease/Condition Glossary
Urinary tract infection (UTI): It is the most common infection in humans caused by microbes and can occur in any part of the urinary tract such as the bladder, urethra, kidneys, or ureters. Most urinary tract infections are caused by bacteria, but some may be caused by fungi and rarely by viruses. Generally, urinary tract infections involve the bladder and urethra in the lower tract. It occurs mostly in women than in men. The symptoms of lower tract (bladder, urethra) infection include the increased urge to urinate, bloody urine, pain with urination, or pelvic pain in women. The symptoms of upper tract (kidneys, ureters) infection include vomiting, nausea, fever, or back pain.
FAQs
Nalidixic Acid is used to treat urinary tract infections (UTIs) caused by bacteria.
Nalidixic Acid contains Nalidixic acid, an antibiotic that works by inhibiting the action of DNA gyrase (bacterial enzyme) that is essential for repairing and replicating the genetic material (DNA) of bacteria. Thereby prevents reproduction and repair of bacteria. Thus, kills bacteria and clears the infection.
Nalidixic Acid may cause diarrhoea as a temporary adverse effect. However, if the condition persists or worsens or notices blood in stools, please consult your doctor.
You are not recommended to take Nalidixic Acid with probenecid as co-administration of these medicines may reduce the effectiveness of Nalidixic Acid and increase its adverse effects. However, please consult your doctor before taking Nalidixic Acid with other medicines.
Nalidixic Acid is not used to treat viral infections. Nalidixic Acid is an antibiotic that kills bacteria and is used to treat only bacterial infections.
You are not recommended to stop taking Nalidixic Acid without consulting your doctor as it may worsen the infection or cause recurring symptoms. Therefore, take Nalidixic Acid for as long as your doctor has prescribed it, and if you experience any difficulty while taking Nalidixic Acid, please consult your doctor.
You are not recommended to take Nalidixic Acid with warfarin as it may increase the risk of bleeding more easily. However, please consult a doctor before using Nalidixic Acid with other medicines to adjust the dose appropriately to use both medicines safely.
It is usually advised not to take Nalidixic Acid with milk or antacids, as they may reduce the effectiveness of the medication by interfering with its absorption. To ensure optimal results, it is best to take Nalidixic Acid on an empty stomach or wait at least 2 hours before or after eating. Always consult your doctor for personalized guidance.
It is recommended to avoid consuming alcohol while taking Nalidixic Acid, as it may increase the risk of side effects.
Nalidixic Acid should be used with caution if you have kidney disease. It may require dose adjustments or close monitoring by your healthcare provider to minimize potential risks. Before starting this medication, be sure to inform your doctor if you have existing kidney conditions.
Common side effects of Nalidixic Acid include diarrhoea, dizziness, headache, nausea, or stomach pain. Most of these side effects of Nalidixic Acid do not require medical attention and gradually resolve over time. However, if the side effects persist or worsen, please consult your doctor.
Store Nalidixic Acid in a cool, dry place, away from direct sunlight and moisture. Keep it out of reach of children.
It is generally not recommended during pregnancy unless your doctor determines that the benefits outweigh the risks. Use near the time of delivery may increase the risk of haemolytic anaemia (a condition in which red blood cells are destroyed faster than they are replaced) in the newborn, particularly in babies with G6PD (Glucose-6-phosphate dehydrogenase) deficiency. As with other quinolone antibiotics, there are also concerns about effects on developing cartilage and joints based mainly on animal studies. If you are pregnant or planning to become pregnant, talk to your doctor about safer treatment options.
This medicine can cause photosensitivity, which makes your skin highly sensitive to ultraviolet (UV) light. This can lead to severe sunburns or blistering after very brief sun exposure. Talk to your doctor if you experience a severe reaction.
This medicine is generally not prescribed for infants under 3 months of age and is used with caution in older children due to potential risks to developing joints. Talk to your doctor to discuss safer alternatives for pediatric patients.
Yes, although it is uncommon. Tendon inflammation or injury has been reported with quinolone antibiotics, but this complication is far more strongly associated with fluoroquinolones (such as ciprofloxacin) than with Nalidixic Acid. If you develop unexplained tendon pain, swelling, or difficulty moving a joint, stop strenuous activity and contact your doctor promptly.
