Macrobid, or Nitrofurantoin, belongs to the family of medicines called anti-infectives, and is used to treat infections of the urinary tract.
Be sure to tell your doctor of any allergies you have whether it is to medication or food, preservatives, or dyes. Tell your doctor immediately if you are, or become pregnant, or are breastfeeding. Also, tell your doctor of any other medications you are taking, including vitamins and supplements, and any medical conditions you may have.
It is very important that you take this medicine exactly as your doctor tells you to. If you miss a dose of this medicine, take it as soon as you remember, unless it is almost time for your next dose. Do NOT double doses.
Tell your doctor immediately if any of the following side effects occur: changes in facial skin color; chest pain; chills; cough; fever; general feeling of discomfort or illness; hives; hoarseness; itching; joint or muscle pain; shortness of breath; skin rash; sudden trouble in swallowing or breathing; swelling of face, mouth, hands, or feet; troubled breathing; black, tarry stools; blood in urine or stools; burning, numbness, tingling, or painful sensations; dizziness; drowsiness; headache; pinpoint red spots on skin; sore throat; unusual bleeding or bruising; unusual tiredness or weakness; or weakness in arms, hands, legs, or feet.
Nitrofurantoin is an antibacterial agent specific for urinary tract infections. The Macrobid brand of nitrofurantoin is a hard gelatin capsule shell containing the equivalent of 100 mg of nitrofurantoin in the form of 25 mg of nitrofurantoin macrocrystals and 75 mg of nitrofurantoin monohydrate. Each capsule contains carbomer 934P, corn starch, compressible sugar, D&C Yellow No. 10, edible gray ink, FD&C Blue No. 1, FD&C Red No. 40, gelatin, lactose, magnesium stearate, povidone, talc, and titanium dioxide.
Macrobid has the following structural formula:
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