Nitrofurantoin
Brand: Macrobid
Key warning
Caution: rare lung and liver toxicity; nerve damage with long-term use
Common side effects
- Nausea
- Headache
- Brown or dark urine discoloration
- Loss of appetite
- Gas
Key interactions & cautions
- Antacids with magnesium reduce absorption
- Avoid in significant kidney impairment
- May reduce effect of some typhoid vaccines
Counseling points
- Take with food to improve absorption
- Finish the full course
- Harmless brown urine may occur
- Report cough or trouble breathing
- Report numbness or tingling
High-yield study aid for exam prep — not a substitute for the package insert or a pharmacist’s dispensing reference.