Floxacillin - (Floxapen®)

This antibiotic is commonly used in Europe and Australia to treat staphylococcal (staph) infections. Floxacillin and a nearly identical drug called dicloxacillin belong to the group of antibiotics called penicillins.

Your Results

Low risk of side effects

Based on your genetic markers, you are likely to have a low risk of side effects. These include liver toxicity, which can result in irreversible liver damage.

Drug and side effects facts

Generic name: floxacillin (floks-a-sill-in), flucloxacillin, flucloxacillin sodium

Brand names: Floxapen®, Fluclox®, Sesamol®

Primary uses: Floxacillin is prescribed to treat a wide range of bacterial infections, as well as to prevent infection during major surgery.

Side effects: Based on their genetic makeup, some people are at increased risk for liver toxicity when taking this drug.

Learn more about how this drug affects you

What you can do

This information is likely to be important for your health.

Let your doctor(s) know about this genetic result.
Carry this information with you should it be needed in a medical consultation or emergency.
Consider sharing this information with your family.

Should you have an infection or need preventive antibiotic treatment, you and your doctor may want to consider floxacillin.

Learn more about what you can do

How common are these side effects?

Roughly nine out of 100,000 first-time floxacillin users experience drug-induced liver toxicity during the first 45 days of taking this drug. (This estimate reflects past occurrences of this side effect in the general population, not your personal genetic risk, and includes people of all ancestries.)

Genetics is only part of the story. Additional factors, such as your gender, age, and treatment course contribute to your risk of floxacillin side effects.

Learn more about side effects