Brand Names: Furadantin, Macrobid, Macrodantin

Generic Name: nitrofurantoin (oral) (Pronunciation: NYE troe fue RAN toin)

• What is nitrofurantoin (Macrobid)?
• What are the possible side effects of nitrofurantoin (Macrobid)?
• What is the most important information I should know about nitrofurantoin (Macrobid)?
• What should I discuss with my healthcare provider before taking nitrofurantoin (Macrobid)?
• How should I take nitrofurantoin (Macrobid)?
• What happens if I miss a dose (Macrobid)?
• What happens if I overdose (Macrobid)?
• What should I avoid while taking nitrofurantoin (Macrobid)?
• What other drugs will affect nitrofurantoin (Macrobid)?
• Where can I get more information?

What is nitrofurantoin (Macrobid)?

Nitrofurantoin is an antibiotic that fights bacteria in the body.

Nitrofurantoin is used to treat urinary tract infections.

Nitrofurantoin may also be used for other purposes not listed in this medication guide.

Macrobid 100 mg

black/yellow, imprinted with Macrobid, Norwich

Nitrofuantoin Macro-Mono 100 mg-EON

black/yellow, imprinted with E 122

Nitrofurantoin 100 mg-MYL

gray, imprinted with MYLAN 1700

Nitrofurantoin 100 mg-ZEN

pink, imprinted with LOGO Zenith 100 mg, 2131

Nitrofurantoin 50 mg-GG

white/yellow, imprinted with GG 535

Nitrofurantoin 50 mg-MYL

beige, imprinted with MYLAN 1650

Nitrofurantoin 50 mg-ZEN

pink/white, imprinted with LOGO Zenith 50 mg, 2130

Nitrofurantoin Macro 50 mg-TEV

pink/white, imprinted with LOGO Zenith 50 mg, 2130

Nitrofurantoin Macrocrystals 100 mg-WAT

yellow, imprinted with WATSON, 3254

Nitrofurantoin Macrocrystals 50 mg-WAT

white/yellow, imprinted with WATSON, 3253

Nitrofurantoin Mono 100 mg-MYL

gray/peach, imprinted with MYLAN 3422

Nitrofurantoin Mono 100 mg-WAT

black/yellow, imprinted with WATSON, 3250

What are the possible side effects of nitrofurantoin (Macrobid)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

• diarrhea that is watery or bloody;
• shortness of breath, running out of breath easily;
• fever, chills, cough, chest pain;
• nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
• pale skin, easy bruising, confusion or weakness;
• numbness or tingling; or
• headache, ringing in your ears, dizziness, vision problems, pain behind your eyes;

Less serious side effects may include:

• rust-colored or brownish urine;
• headache;
• upset stomach, vomiting;
• bloating or gas, constipation;
• feeling dizzy or drowsy;
• blurred vision; or
• vaginal itching or discharge.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about nitrofurantoin (Macrobid)?

Call your doctor at once if you have a serious side effect such as: feeling short of breath (even with mild exertion), fever, chills, cough, chest pain, yellowing of the skin or eyes; pale skin, unusual weakness, numbness or tingling, or diarrhea that is watery or bloody.

Avoid using antacids without your doctor's advice. Use only the specific type of antacid your doctor recommends. Antacids contain different medicines and some types can make it harder for your body to absorb nitrofurantoin.

Take this medication for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Nitrofurantoin will not treat a viral infection such as the common cold or flu.

Take nitrofurantoin with food or milk.