What is Macrobid?
Macrobid is an antibiotic that fights bacteria in the body.
Macrobid is used to treat urinary tract infections.
Macrobid may also be used for other purposes not listed in this medication guide.
What is the most important information I should know about 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 Macrobid.
Take Macrobid for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Macrobid will not treat a viral infection such as the common cold or flu. Take Macrobid with food or milk.
What should I discuss with my healthcare provider before taking Macrobid?
You should not use Macrobid if you are allergic to nitrofurantoin, or have certain conditions. Be sure your doctor knows if you have:
• severe kidney disease;
• if you are urinating less than usual or not at all; or
• if you are in the last 2 to 4 weeks of pregnancy.
Before taking Macrobid, tell your doctor if you are allergic to any drugs, or if you have:
• kidney disease,
• anemia,
• diabetes,
• glucose-6-phosphate dehydrogenase (G6PD) deficiency; or
• any type of debilitating disease.
If you have any of these conditions, you may need a dose adjustment or special tests to safely take Macrobid.
FDA pregnancy category B. Macrobid is not expected to be harmful to an unborn baby, unless it is used during the last 2 to 4 weeks of pregnancy. Tell your doctor if you are pregnant or plan to become pregnant during treatment. This medication passes into breast milk and may harm a nursing baby. Do not take Macrobid without telling your doctor if you are breast feeding a baby. Do not give Macrobid to a child younger than 12 years old.
How should I take Macrobid?
Take Macrobid exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.
Take each dose with a full glass of water. Take Macrobid with food or milk. Shake the oral suspension (liquid) well before measuring a dose. To ensure that you get the correct dose, measure the suspension with a dose-measuring spoon or dropper, not with a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist where you can get one.
You may mix your liquid dose with water, milk, or fruit juice to make it easier to swallow. Drink the entire mixture right away.
Take this medication for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Macrobid will not treat a viral infection such as the common cold or flu.
To be sure this medication is not causing harmful effects, your kidney function may need to be tested. Do not miss any scheduled appointments.
Macrobid can cause you to have unusual results with certain urine glucose (sugar) tests. Tell any doctor who treats you that you are using Macrobid.
Store Macrobid at room temperature away from moisture and heat.
What happens if I miss a dose?
Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention if you think you have used too much of this medicine.
Overdose symptoms may include nausea or vomiting.
What should I avoid while taking Macrobid?
Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or has blood in it, call your doctor. Do not use any medicine to stop the diarrhea unless your doctor has told you to.
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 Macrobid.
Macrobid side effects
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:
• shortness of breath, running out of breath easily;
• fever, chills, cough, chest pain;
• jaundice (yellowing of the skin or eyes);
• pale skin, easy bruising, unusual weakness;
• numbness or tingling; or
• diarrhea that is watery or bloody.
Less serious side effects may include:
• rust-colored or brownish urine;
• headache;
• nausea, vomiting, upset stomach;
• 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. Tell your doctor about any unusual or bothersome side effect.
What other drugs will affect Macrobid?
Before taking Macrobid, tell your doctor if you are taking:
• magnesium salicylate (Doan's Pills, Mobidin, Momentum);
• choline magnesium salicylate (Tricosal, Trilisate);
• probenecid (Benemid); or
• sulfinpyrazone (Anturane).
This list is not complete and there may be other drugs that can interact with Macrobid. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.
Where can I get more information?
• Your pharmacist can provide more information about Macrobid.