About pefloxacin
Fluoroquinolone antibiotic
Used for
- Treats certain bacterial infections, including urinary, respiratory, and gastrointestinal infections.
- Not effective against viral infections such as colds or flu.
Usual adult dose
Usually 400 mg by mouth every 12 hours; dose and duration depend on the infection.
Common side effects
- Nausea, diarrhea, or abdominal discomfort
- Headache, dizziness, or sleep disturbance
- Sun sensitivity
- Tendon pain or inflammation
Important warnings
- May cause serious tendon, nerve, or central nervous system problems.
- Avoid excessive sunlight and ultraviolet exposure during treatment.
- Use only for susceptible bacterial infections; resistance may limit effectiveness.
- Not generally recommended when safer effective antibiotics are available.
Pregnancy
Generally avoided during pregnancy because of potential effects on developing cartilage.
Breastfeeding
Generally avoided during breastfeeding; seek an alternative antibiotic when appropriate.
Interactions
- Antacids and mineral supplements can reduce absorption; separate doses.
- Warfarin effects may increase; monitoring may be needed.
- May interact with theophylline and increase its adverse effects.
- Other medicines affecting heart rhythm may increase rhythm risks.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.