Key facts about Macrobid
What is Macrobid?
Macrobid is the brand name for nitrofurantoin and is available as an oral capsule.
What dosages is Macrobid available in?
Macrobid is available as a 100 mg oral capsule.
What is Macrobid used for?
Macrobid is a nitrofuran antibiotic that is used to treat urinary tract infections.
How does Macrobid work?
Macrobid is a nitrofuran antibiotic. The medication collects in your urine. It kills bacteria in the urinary tract by damaging or blocking proteins the bacteria need to survive.
How do I take Macrobid?
For people over 12 years old, the typical dose of Macrobid is 100 mg by mouth every 12 hours with food for 7 days.
Is it safe for me to take Macrobid?
Macrobid is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you have anuria, oliguria, or significant impairment of renal function, a previous history of cholestatic jaundice/hepatic dysfunction associated with nitrofurantoin, or pregnant at term (38-42 weeks gestation).
Macrobid Common Side Effects
Common side effects of Macrobid:
- Nausea
- Headache
- Gas
- Diarrhea
- Vomiting
- Upset stomach
- Stomach pain
Macrobid Serious Side Effects
Serious side effects are rare with Macrobid. Serious Side Effects Contact your healthcare provider immediately if you experience any of the following.
- Severe allergic reaction: hives, rash, muscle aches, chills, fever, swelling of the lips or tongue, difficulty breathing
Severe diarrhea - Trouble breathing or new or worsening cough
- Liver problems: stomach bloating, severe stomach pain with vomiting, yellowing of your skin or the whites of your eyes, dark urine
Effects of other drugs, drug classes and over-the-counter products on Macrobid
The following medications may interact with Macrobid:
- Antacids containing magnesium trisilicate, when administered concomitantly with nitrofurantoin, reduce both the rate and extent of absorption
- Uricosuric drugs, such as probenecid and sulfinpyrazone, can inhibit renal tubular secretion of nitrofurantoin. The resulting increase in nitrofurantoin serum levels may increase toxicity, and the decreased urinary levels could lessen its efficacy as a urinary tract antibacterial
Who makes Macrobid?
Norwich Pharmaceuticals, Inc.
Is Macrobid safe in pregnancy?
Macrobid is contraindicated in pregnant patients at term (38-42 weeks gestation), during labor and delivery, or when the onset of labor is imminent. It is contraindicated in neonates under one month of age.
