Azithromycin
Brand: Zithromax (Z-Pak)
Key warning
Caution: may prolong the QT interval and cause abnormal heart rhythms
Common side effects
- Diarrhea
- Nausea
- Abdominal pain
- Vomiting
Key interactions & cautions
- Antacids with aluminum or magnesium reduce absorption
- May add to QT-prolonging drugs
- Can increase warfarin effect
Counseling points
- Finish the full course as directed
- Separate from antacids by a couple hours
- Report irregular or fast heartbeat
- Report severe or watery diarrhea
- May be taken with or without food
High-yield study aid for exam prep — not a substitute for the package insert or a pharmacist’s dispensing reference.