Compare Zymaxid vs. Keflex

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Zymaxid (gatifloxacin)

Prescription only

Keflex (cephalexin)

Prescription only
Treats eye infections.

Zymaxid (gatifloxacin) effectively treats pink eye caused by bacteria, but must be applied multiple times a day.

Treats bacterial infections.

Keflex (cephalexin) is good for treating many bacterial infections, and is available as a generic.

3.7/ 5 average rating with 686 reviewsforKeflex
Upsides
  • Zymaxid (gatifloxacin) effectively treats pink eye.
  • Directly applying Zymaxid (gatifloxacin) to the eye(s) helps you avoid systemic side effects such as diarrhea and sun sensitivity.
  • Inexpensive generic Zymaxid (gatifloxacin) drops are available.
  • Available in generic.
  • Available in different forms: tablet, capsule, and suspension.
  • Used to treat many types of bacterial infections.
  • Can be taken with or without food.
  • Generally few side effects compared with other antibiotics.
Downsides
  • Requires frequent applications, especially during the first few days of treatment.
  • Directly applying Zymaxid (gatifloxacin) to the eyes can be irritating.
  • Must be applied more frequently than some alternatives.
  • Can cause diarrhea.
  • You may need to take Keflex (cephalexin) 2 to 4 times a day, which can be hard to remember.
  • If you're allergic to penicillins or other antibiotics, you might not be able to take this medicine.
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Used for
Dosage forms
  • Eye drops
  • Pill
  • Liquid
Price
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Reviews
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686 reviews so far
64%
saidit'sworth it
48%
saiditworked well
14%
saidit'sa big hassle

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Side effects
The Zymaxid (gatifloxacin) FDA package insert doesn’t have numbers about how common side effects are.
The Keflex (cephalexin) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Allergy to ingredients
    • Allergies to quinolone antibiotics such as Levaquin and Cipro.
  • Risk for contamination
  • Not to be used with contact lenses
  • For use topically in the eyes only
  • Risk of infection
    • Prolonged use
See more detailed risks and warnings
  • Diarrhea
  • New infections while taking Keflex (cephalexin)
    • Weakened immune system
    • Not taking Keflex (cephalexin) correctly
  • Allergic reaction
    • History of penicillin or cephalosporin allergies
See more detailed risks and warnings