Zymaxid

Brand for gatifloxacin

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Most insurance accepted

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Available nationwide

What is Zymaxid?

Zymaxid is a prescription antibiotic eye drop containing gatifloxacin, a fourth-generation fluoroquinolone, used to treat bacterial conjunctivitis. It works by blocking two bacterial enzymes essential to DNA replication and repair, killing the bacteria causing the infection. Its fourth-generation status means it has enhanced activity against a broader range of bacteria—including strains that have developed resistance to older fluoroquinolone antibiotics. It's applied directly to the infected eye multiple times daily, with frequency tapering as the infection resolves over the treatment course.

Dual topoisomerase inhibition

Simultaneously blocks both DNA gyrase and topoisomerase IV—the two bacterial enzymes responsible for DNA replication and repair—making it harder for bacteria to develop resistance than with antibiotics that target only one enzyme.

Fourth-generation fluoroquinolone coverage

Enhanced spectrum compared to earlier fluoroquinolones, with activity against a broader range of gram-positive and gram-negative ocular pathogens, including some resistant strains.

Direct ocular delivery

Applied as drops to the eye surface, Zymaxid achieves high local antibiotic concentrations exactly at the site of infection—resolving bacterial conjunctivitis quickly with a short, targeted treatment course.

Ongoing support, always available.

Your care doesn’t end after your visit. Message your care team anytime to discuss side effects, ask questions about your medication, or request a refill.

We stay proactive so your care stays steady — adjusting your plan as needed and keeping you informed every step of the way.

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