Informational only — Not medical advice. Always consult a licensed healthcare provider.

Community data Updated 2 months ago

Indications & Uses

Baloflu is indicated for:

Pharmacology

Baloxavir Marboxil is an antiviral that works as a polymerase endonuclease inhibitor. It comes as a film-coated tablet that you take by mouth, and the active component of the tablet is Baloxavir Marboxil. This is a prodrug, which means the body first converts it by hydrolysis into Baloxavir, the form that actually acts against the influenza virus.

Baloxavir blocks the endonuclease activity of the polymerase acidic (PA) protein. This protein is an enzyme specific to the influenza virus, and it sits within the viral RNA polymerase complex, which the virus needs for viral gene transcription. When Baloxavir inhibits it, the influenza virus can't replicate.

Dosage Reference

Reference Information Only

Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.

Adults:

Take Baloxavir as a single dose by mouth within 48 hours of the first symptoms. You can take it with or without food. The dose depends on body weight.

For people weighing 40 kg to less than 80 kg, take two 20 mg tablets together at the same time, which makes a single dose of 40 mg.

For people weighing at least 80 kg, take two 40 mg tablets together at the same time, which makes a single dose of 80 mg.

Pediatric Use: The safety and effectiveness of Baloxavir Marboxil for treating acute uncomplicated influenza have been established in children 12 years of age and older who weigh at least 40 kg.

Side Effects

In adult and adolescent patients treated with Baloxavir Marboxil for influenza, some side effects were reported in at least 1% of people. These were diarrhea (3%), bronchitis (3%), nausea (2%), sinusitis (2%) and headache (1%).

Cautions & Contraindications

Warnings & Precautions

Hypersensitivity, such as anaphylaxis, angioedema, urticaria and erythema multiforme: if an allergic-like reaction happens or is suspected, start appropriate treatment. Risk of bacterial infection: serious bacterial infections can begin with influenza-like symptoms, or they can exist alongside influenza or come as a complication of it. Baloxavir Marboxil has not been shown to prevent such complications. Prescribers should watch for secondary bacterial infections and treat them as appropriate.

Contraindications

Don't give Baloxavir Marboxil to anyone who has had an allergic reaction to it before, or to any of the other ingredients in the medicine.

Pregnancy & Breastfeeding

There aren't any adequate, well-controlled studies of Baloxavir Marboxil in pregnant women, so we can't say whether it carries a risk of harmful effects on the baby's development. Influenza infection itself during pregnancy is known to carry risks for both the mother and the fetus. As for breastfeeding, there are no data on whether baloxavir marboxil passes into human milk, what effect it might have on a breastfed infant, or whether it changes milk production.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Overdose

If someone takes too much Baloxavir Marboxil, treatment is general supportive care. This means checking the person's vital signs and watching their clinical condition. There is no specific antidote for a Baloxavir Marboxil overdose.

⚠️ In an emergency call 999 or go to the nearest hospital emergency department.

Storage

Store Baloxavir Marboxil below 30°C, away from light and moisture. Keep it out of the reach of children.

Drug Interactions

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Major Zinc
Major Iron
Major Magnesium

Common questions about Baloflu 40 mg

What is Baloflu 40 mg Tablet?

Baloflu 40 mg Tablet is a medicine that contains Baloxavir Marboxil. It is made by The ACME Laboratories Ltd. It belongs to the Respiratory viral infections (Influenza) group of medicines.

What is Baloflu used for?

Baloflu is used for: Viral Infection.

What are the side effects of Baloflu?

In adult and adolescent patients treated with Baloxavir Marboxil for influenza, some side effects were reported in at least 1% of people. These were diarrhea (3%), bronchitis (3%), nausea (2%), sinusitis (2%) and headache (1%).

Can I take Baloflu during pregnancy or while breastfeeding?

There aren't any adequate, well-controlled studies of Baloxavir Marboxil in pregnant women, so we can't say whether it carries a risk of harmful effects on the baby's development. Influenza infection itself during pregnancy is known to carry risks for both the mother and the fetus. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

What happens if I take too much Baloflu?

If someone takes too much Baloxavir Marboxil, treatment is general supportive care. This means checking the person's vital signs and watching their clinical condition. In an emergency call 999 or go to the nearest hospital emergency department.

How should I store Baloflu?

Store Baloxavir Marboxil below 30°C, away from light and moisture. Keep it out of the reach of children.

Can I take other medicines with Baloflu?

Some medicines can interact with Baloxavir Marboxil, for example: Zinc, Iron, Magnesium, Selenium 100 gm/. Tell your doctor or pharmacist about every medicine you take.

Do I need a prescription for Baloflu?

Baloflu is a prescription (Rx) medicine. Take it as your doctor advises.

Last updated: 15 Aug 2026