Fluoroquinolones

Drug

Common Uses

Some Potential Side Effects

Norfloxacin

Sepsis

Complicated urinary tract infections

Pneumonia

Bacterial infection of the prostate (prostatitis)

Diarrhea due to certain bacteria

Gastrointestinal upset and diarrhea*

Nausea

Nervousness, tremors, and seizures

Mood alterations, paranoia, confusion, tremors, hallucinations, and depression

Inflammation or rupture of tendons

Abnormal heart rhythms (arrhythmias)

Numbness in the hands or feet

Rashes triggered by sunlight

Muscle weakness

* Almost any antibiotic can cause Clostridioides difficile–induced diarrhea