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Baloxavir marboxil Oral Tablets

What is this medicine?

BALOXAVIR MARBOXIL (bah loks ah veer mar box ill) is an antiviral drug. It treats or prevents influenza.

How should I use this medicine?

Take this medicine by mouth with water. Follow the directions on the prescription label. You can take it with or without food. Take products with calcium, iron, magnesium, selenium, or zinc in them at a different time of day than this drug. Talk to your health care provider if you have questions.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 12 years for selected conditions, precautions do apply.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue

  • bloody or black, tarry stools

  • confusion

  • hallucinations

Side effects that usually do not require medical attention (report these to your doctor or health care professional if they continue or are bothersome):

  • diarrhea

  • headache

  • nausea

  • sore throat

  • vomiting

What may interact with this medicine?

  • antacids, vitamins, or other products that contain calcium, iron, magnesium, selenium, or zinc

  • intranasal influenza vaccines

What if I miss a dose?

This does not apply. This drug is not for regular use.

Where should I keep my medicine?

Keep out of the reach of children.

Store between 20 and 25 degrees C (68 and 77 degrees F). Keep this medicine in the original container. Throw away any unused drug after the expiration date.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • recent or upcoming vaccine

  • an unusual or allergic reaction to baloxavir marboxil, other medicines, foods, dyes, or preservatives

  • pregnant or trying to get pregnant

  • breast-feeding

What should I watch for while using this medicine?

Visit your health care provider for regular checks on your progress. Tell your health care provider if your symptoms do not start to get better or if they get worse.

If you have the flu, you may be at an increased risk of developing confusion or abnormal behavior. This occurs early in the illness, and more frequently in children and teens. These events are not common but may result in accidental injury to the patient. Families and caregivers of patients should watch for signs of unusual behavior and contact a doctor or health care professional right away if the patient shows signs of unusual behavior.

This drug is not a substitute for the flu shot. Talk to your doctor each year about an annual flu shot.


NOTE:This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider. Copyright© 2020 Elsevier