MSD Manual

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Fluoroquinolones

Fluoroquinolones

Drug

Common Uses

Some Side Effects

Ciprofloxacin

Delafloxacin

Gatifloxacin (eye infections only)

Gemifloxacin

Levofloxacin

Moxifloxacin

Norfloxacin

Ofloxacin

Bacterial infection of the prostate (prostatitis)

Diarrhea due to certain bacteria

Gastrointestinal upset and diarrhea*

Nausea

Nervousness, tremors, and seizures

Inflammation or rupture of tendons

Abnormal heart rhythms (arrhythmias)

Skin problems triggered by sunlight (photosensitivity reactions)

* Almost any antibiotic can cause Clostridioides difficile–induced diarrhea and inflammation of the colon (colitis), but clindamycin, penicillins, cephalosporins, and fluoroquinolones are the most common causes.