Prescription onlyLower-cost generic available

Macrobid

(Nitrofurantoin)

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Treats urinary tract infections.

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Prescription onlyLower-cost generic available

Our pharmacists’ bottom line

Macrobid (Nitrofurantoin) works best in young, otherwise healthy females. It shouldn't be used by children, the elderly, or people with kidney problems.

  • Macrobid (Nitrofurantoin) works well to treat urinary tract infections.
  • Young and otherwise healthy females have the best results when taking Macrobid (Nitrofurantoin).
  • It's not too common, but you can get a test done that'll show if Macrobid (Nitrofurantoin) will work for you.
  • Shouldn't be used for a long period of time.
  • Can't be used in children under 12 years old.
  • Interacts with drugs like probenecid and sulfinpyrazone.
  • Can't be used if you have kidney problems or don't urinate often (the medication could build up and cause toxicity).

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Side effects for Macrobid (Nitrofurantoin)

From clinical trials of Nitrofurantoin / Urinary tract infection 

  • NauseaNausea8% for Nitrofurantoin vs.0% for placebo
  • HeadacheHeadache6% for Nitrofurantoin vs.0% for placebo
  • GasGas2% for Nitrofurantoin vs.0% for placebo

What to expect when you take Macrobid (Nitrofurantoin)

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Tips from our pharmacists
  • Take it with food (ideally breakfast and dinner) to prevent side effects and improve the drug's absorption.
  • Don't take it with antacids that contain magnesium.
  • It's common to feel better before you're supposed to stop taking Macrobid (Nitrofurantoin), but take it for the entire time your doctor prescribed it. Skipping doses or stopping early can lower the drug's effectiveness and increase the chance that the drug won't work as well next time.

Risks and Warnings for Macrobid (Nitrofurantoin)

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    • Higher risk if:
    • Pregnant women
    • Newborn babies

    Macrobid (Nitrofurantoin) can cause blood cells to break up and die. So it can't be used in pregnant women at term (38-42 weeks gestation), during labor and delivery, or when the onset of labor is imminent. For the same reason, the drug is contraindicated in newborn babies under one month of age.

Means that some groups have a high risk of experiencing this side effect

Tips from pharmacists and people taking Macrobid (Nitrofurantoin)

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The FDA category for this medication is B. It is advised that you: Probably safe
Pregnancy
Food
  • Tips from our pharmacists
  • Take it with food (ideally breakfast and dinner) to prevent side effects and improve the drug's absorption.
  • They're not kidding when they say 'take with food', Eat half your meal, swallow the pill, then eat the rest.
    Age: 48
    Gender: Woman
    Duration taken: Less than a week
Kidneys & liver
  • Upsides and downsides from our pharmacists
  • Can't be used if you have kidney problems or don't urinate often (the medication could build up and cause toxicity).
  • Risks from our pharmacists
  • Macrobid (Nitrofurantoin) can cause significant kidney problems. Don't take it if you haven't been urinating often enough or have a history of kidney problems.