Macrobid (Nitrofurantoin) Drug Information: Medication Guide and Patient Information

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May 27, 2012

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Urinary Tract Infection (UTI In Adults) »

Urinary tract infection (UTI) facts

Urinary tract infections (UTIs) are infections of the urethra, bladder, ureters, or the kidneys, which comprise the urinary tract.
E. coli bacteria cause the majority of UTIs, but many other bacteria, fungi, and parasites may also cause UTIs.
Females have a higher risk for UTIs than most males, probably because of their anatomy; other risk factors for UTIs include any condition that may impede urine flow (e.g., enlarged prostate, congenital urinary tract abnormalities, and inflammation). Patients with catheters or those who undergo urinary surgery and men with enlarged prostates are at higher risk for UTIs.
Symptoms and signs of UTI vary somewhat depending on sex, age, and the area of the urinary tract that is infected; some unique symptoms develop depending on the infecting agent.
UTIs are diagnosed usually by isolating and identifying the urinary pathogen from the patient; there a...

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PATIENT INFORMATION

Patients should be advised to take Macrobid (nitrofurantoin) with food (ideally breakfast and dinner) to further enhance tolerance and improve drug absorption. Patients should be instructed to complete the full course of therapy; however, they should be advised to contact their physician if any unusual symptoms occur during therapy.

Patients should be advised not to use antacid preparations containing magnesium trisilicate while taking Macrobid (nitrofurantoin) .

Patients should be counseled that antibacterial drugs including Macrobid (nitrofurantoin) should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When Macrobid (nitrofurantoin) is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by Macrobid (nitrofurantoin) or other antibacterial drugs in the future.

Diarrhea is a common problem caused by antibiotics which usually ends when the antibiotic is discontinued. Sometimes after starting treatment with antibiotics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after having taken the last dose of the antibiotic. If this occurs, patients should contact their physician as soon as possible.

Last reviewed on RxList: 12/2/2010
This monograph has been modified to include the generic and brand name in many instances.