Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Moxifloxacin (Vigamox) and Zylet (loteprednol/tobramycin) are both prescription eye medications, but they serve different purposes and belong to different drug classes. Moxifloxacin (Vigamox) is a fluoroquinolone antibiotic used to treat bacterial conjunctivitis (pink eye) and is available in both brand-name and generic forms. It works by blocking proteins that bacteria need to grow and survive. You need to use it three times a day for seven days. Common side effects include dry eye, eye pain, and redness. On the other hand, Zylet (loteprednol/tobramycin) is a combination of a corticosteroid and an antibiotic, used to treat or prevent eye inflammation and bacterial infections. It is only available as a brand-name medication. Zylet needs to be used more frequently, especially in the beginning, and can cause higher eye pressure and eye injury if used for too long. Common side effects include eye redness, cornea inflammation, and headaches. While both medications treat bacterial eye infections, Zylet also addresses inflammation, making it suitable for more complex eye conditions.
Moxifloxacin (Vigamox)
Zylet (loteprednol / tobramycin)
Moxifloxacin (Vigamox)
Zylet (loteprednol / tobramycin)
Summary of Vigamox vs. Zylet
Summary for Fluoroquinolone antibiotic
Prescription only
Moxifloxacin (Vigamox) is a fluoroquinolone antibiotic that treats bacterial conjunctivitis (pink eye) in people of all ages. It's an eye drop that's placed in the affected eye(s) 3 times per day for 7 days. Side effects aren't common but can include dry eye, eye pain, eye redness, and itchy eyes. This medication is available as a brand-name and generic version.
Summary for Corticosteroid / Antibiotic
Prescription only
Zylet is a combination eye drop medication that contains two active ingredients: loteprednol and tobramycin. It's approved for use in people 7 years and older to treat bacterial eye infections, like pink eye, and related eye redness and swelling (inflammation). The corticosteroid (or steroid), loteprednol, helps lessen eye inflammation and the aminoglycoside antibiotic, tobramycin, fights off bacteria causing the eye infection. Zylet eye drops are placed directly into the affected eye(s) every 4 to 6 hours. Side effects include eye irritation and headache.