Macrodantin or Furadantin or Nitrofurantoin

OTHER NAMES: Furalan, Furan, Furanite, Furatoin, Furaton

Why is this drug prescribed?
Nitrofurantoin eliminates bacteria that cause urinary tract infections.

When should it be used?
Nitrofurantoin is usually taken four times a day for at least seven days. To be effective, it should be taken at evenly spaced intervals. For example, if you are to take it four times a day, take a dose every six hours. If you cannot take it around the clock, however, take it at evenly spaced intervals between the time you wake up and the time you go to bed. Follow the instructions on your prescription label carefully, and ask us or your pharmacist to explain any part that you do not understand.

How should it be used?
Nitrofurantoin comes in tablets, capsules and oral liquid. Your prescription label tells you how much to take at each dose. Take it with a full glass of water or with meals. Shake the liquid well before each use to mix the medication evenly. You may obtain a specially marked measuring spoon from your pharmacist to be sure of an accurate dose. The liquid may be mixed with water, milk, fruit juice, or infant formula. Since Nitrofurantoin is usually prescribed for a limited time, your prescription probably does not have refills.

What special instructions should I follow while using this drug?
Drink at least eight full glasses of water or other liquids every day. Take all the medication prescribed, even if you begin to feel better. Symptoms of the infection may disappear before the infection is cured. You may have urine tests to determine when the infection is cured; keep all appointments with your doctor and the laboratory. If you have taken all the medication prescribed and still have symptoms, contact your doctor.

What should I do if I forget to take a dose?
Take the missed dose as soon as you remember it and take any remaining doses for that day at evenly spaced intervals.

What side effects can this drug cause? What can I do about them?

  • Dark yellow to brown urine
    This effect is harmless.
  • Nausea, vomiting, loss of appetite
    Take Nitrofurantoin with food or milk. If you still have stomach upsets, Contact us.
  • Skin rash, difficulty breathing, chills, chest pain, cough, fever, numbness, tingling, or pinprick sensation in fingers and toes, or muscle weakness
    Stop taking the drug and contact your doctor immediately.

What other precautions should I follow while using this drug?
Because some antacids and Probenecid can reduce the effectiveness of Nitrofurantoin and increase its side effects, tell us if you are taking them. Before taking Nitrofurantoin, tell your doctor if you have anemia, diabetes, or kidney disease, or if you are pregnant or breast-feeding. Nitrofurantoin should not be taken by women in the last month of pregnancy. Nitrofurantoin may cause false results in urine tests for sugar. If you are diabetic, test your urine with TesTape or Clinistix instead of Clinitest while you take this medication. If your doctor tells you to stop taking Nitrofurantoin, throw away any unused medication. Nitrofurantoin loses effectiveness with time and should not be saved to treat other infections. Do not allow anyone else to take this medication. If Nitrofurantion is taken for long periods (more than one month) a type of lung inflammation can occur very rarely. If you are given a long-term course of Nitrofurantion and notice any breathing problems, let us know.