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Clarithromycin

Brand: Biaxin

Macrolide antibioticUsed for: Bacterial infectionsAnti-Infectives
Key warning

Caution: QT prolongation risk; avoid in certain heart-rhythm conditions

Common side effects

  • Diarrhea
  • Nausea
  • Abnormal or metallic taste
  • Stomach upset
  • Headache

Key interactions & cautions

  • Raises statin levels (avoid simvastatin)
  • Many CYP3A4 interactions raise drug levels
  • Can prolong QT with other QT drugs
  • Increases warfarin bleeding risk

Counseling points

  • Finish the full course
  • May be taken with or without food
  • Report irregular heartbeat or fainting
  • Report severe or watery diarrhea
  • Space from antacids if directed
← CiprofloxacinDoxycycline →

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