Furadantin; Macrobid; Macrodantin
- It is used to treat or prevent a urinary tract infection (UTI).
For all patients taking this drug:
- If you have an allergy to nitrofurantoin or any other part of this drug.
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have kidney disease.
- If you have trouble passing urine.
- If this drug caused liver problems before.
- If you are more than 38 weeks pregnant.
- If you are breast-feeding or plan to breast-feed.
- If your child is younger than 1 month of age. Do not give this drug to an infant younger than 1 month of age.
- Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.
- Be careful if you have G6PD deficiency. Anemia may happen.
- This drug may affect certain lab tests. Tell all of your health care providers and lab workers that you take this drug.
- Do not use longer than you have been told. A second infection may happen.
- Very bad and sometimes deadly lung problems have rarely happened with this drug. Most of the time, this happens in people who are taking this drug for 6 months or longer. Lung problems may happen without warning signs. If you take this drug for a long time, your doctor will watch your lung function. Call your doctor right away if you have fever, chills, chest pain, a cough that is not normal, or trouble breathing or other breathing problems.
- If you are 65 or older, use this drug with care. You could have more side effects.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this drug while you are pregnant.
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of a pancreas problem (pancreatitis) like very bad stomach pain, very bad back pain, or very bad upset stomach or throwing up.
- Signs of lupus like a rash on the cheeks or other body parts, sunburn easy, muscle or joint pain, chest pain or shortness of breath, or swelling in the arms or legs.
- Not able to control eye movements.
- Feeling very tired or weak.
- It is common to have diarrhea when taking this drug. Rarely, a very bad form of diarrhea called Clostridium difficile (C diff)–associated diarrhea (CDAD) may occur. Sometimes, this has led to a deadly bowel problem (colitis). CDAD may happen while you are taking this drug or within a few months after you stop taking it. Call your doctor right away if you have stomach pain or cramps, very loose or watery stools, or bloody stools. Do not try to treat loose stools without first checking with your doctor.
- Liver problems have rarely happened with this drug. Sometimes, this has been deadly. Call your doctor right away if you have signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Nerve problems have happened with this drug. Sometimes, these nerve problems have been very bad, have not gone away, or have been deadly. The chance of nerve problems may be higher in people who have kidney problems, anemia, diabetes, electrolyte problems, or low vitamin B. Call your doctor right away if you have a burning, numbness, or tingling feeling that is not normal.
- Upset stomach or throwing up.
- Not hungry.
- Loose stools (diarrhea).
- Belly pain.
- Feeling sleepy.
- This drug may change the color of the urine to brown. This is normal and not harmful.
- Take this drug with food.
- To gain the most benefit, do not miss doses.
- Keep taking this drug as you have been told by your doctor or other health care provider, even if you feel well.
- Drink lots of noncaffeine liquids unless told to drink less liquid by your doctor.
- Do not take antacids that have magnesium trisilicate in them with this drug.
- Shake well before use.
- Measure liquid doses carefully. Use the measuring device that comes with this drug. If there is none, ask the pharmacist for a device to measure this drug.
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- Store at room temperature.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- Store in original container.
- Do not freeze.
- Protect from light.
- Throw away any unused portion after 30 days.
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else’s drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.