← Drug quick-reference

Metronidazole

Brand: Flagyl

Antibiotic / antiprotozoalUsed for: Anaerobic infections (avoid alcohol)Anti-Infectives
Key warning

Boxed warning: carcinogenic in mice and rats - reserve for approved uses only

Common side effects

  • Metallic taste
  • Nausea
  • Headache
  • Dark urine
  • Dizziness

Key interactions & cautions

  • Avoid alcohol during and after treatment
  • May increase warfarin effect
  • Can interact with lithium

Counseling points

  • Avoid alcohol during and 3 days after finishing
  • Finish the full course
  • Take with food to reduce upset stomach
  • Urine may darken; this is harmless
  • Report numbness or tingling in hands or feet
← LevofloxacinNitrofurantoin →

High-yield study aid for exam prep — not a substitute for the package insert or a pharmacist’s dispensing reference.