Favipiravir is an antiviral medication that can be used to treat acute or convalescent influenza in adults and children. It is a prescription-only product available as a powder for oral suspension. Fapivir should be refrigerated at 2°C to 8°C until it is mixed with water before being administered. The drug has been approved in Japan and Switzerland, as well as Canada, Europe, and the United States of America.

Favipiravir is a novel antiviral agent with great potential as an anti-influenza drug. This drug was developed by Dr. Helen Teare at Geneva University in Switzerland and licensed in 2016 to Fapivir Inc., where it was launched on December 25th, 2016. Favipiravir comprises two peptide molecules. Although the mechanism of action is not fully understood, Fapivir inhibits viral replication by stabilizing the viral ribonucleic acid (RNA) and by inhibiting viral polymerase. In addition, Fapivir inhibits interferon-β production, which is important in decreasing of inflammatory response.

Who should not take Favipiravir?

Favipiravir is not recommended for use by patients who are allergic to it or any of the inactive ingredients. It is also not recommended for children under the age of 2 or anyone who is pregnant.

Who should not take this medication?

Favipiravir should not be used during pregnancy as it may cause harm to the baby. It is also not recommended for people with a known allergy to favipiravir, or any of the inactive ingredients. It is also not suitable for kids younger than two years old and pregnant women.

How should this medication be taken?

Fapivir should be taken with at least 8 ounces of water. Make sure you don’t chew or split the tablet. It can take up to 4 hours for the medicine to begin working after it is taken, so patients may want to stay home from work or school until they are well and no longer feel sick.

Pay attention to your doctor’s recommended dosing schedule. One dose is typically taken daily, for five days, and then a drug holiday of at least five days is usually needed.

What are the possible side effects of this medication?

The most common side effects are nausea and vomiting which often disappear as the body adjusts to the med. Patients should take this medicine with at least 8 ounces of water and drink lots of clear fluids (at least eight glasses per day), as it helps to reduce these side effects.

How should I store this medication?

Store this medication at room temperature, away from moisture and heat. Do not refrigerate or freeze it. Throw away any unused medicine after the expiration date on the label passes. Keep this medication out of sight and reach of children and pets, since it can be fatal if swallowed by them.

Side Effects of Favipiravir

Fapivir may cause side effects including:

  • Nausea or vomiting;
  • Diarrhea;
  • Difficulty breathing;
  • Headache;
  • Chills;
  • Feeling very tired.

These are not all possible side effects of Fapivir. Patients with influenza most commonly have fever, cough, and sore throat. Less common symptoms include loss of appetite, body aches, chills, and fatigue. In rare instances, influenza can lead to more serious complications such as pneumonia or worsening of chronic medical conditions like heart disease, diabetes, or asthma.

It’s important that you speak with your physician before beginning any new medication regimen. Never take medication without first consulting your doctor. Fapivir is no exception.

Favipiravir for COVID-19

A recently upgraded version of the drug, Fapivir has increased its ability to treat viral infections among other things. Not only has it been approved by the American FDA, but more importantly, it is more effective than previous versions. The approval process took a very long time. So, the manufacturer decided to produce a new version of the drug that is slightly different from its predecessor.

Covid-19 is a highly contagious virus, which should be taken seriously. Fapivir is one of the many ways to stop COVID-19 from spreading.

The reason Fapivir works with COVID-19 so well is that it literally kills the virus. Studies show that general antiviral medications do not work as well for COVID-19 as they do for other viruses, but Fapivir does wonders.

Covid-19 first appears as a red spot or bump on one’s skin. It is important to get rid of it quickly before it gets worse. It will start to spread at this point as well, so it is crucial that you contact your nearest doctor right away. If you do not act fast enough, your body will begin to feel very weak and fatigued for no reason. This is a sign that COVID-19 has affected your entire system.

You may be wondering why Fapivir does not work for everyone who has this virus. After all, it works well for most people who use it. The reason is that physicians do not recommend everyone to have Fapivir on hand. It is only prescribed to people who have this virus, when it has affected their system.

If you are diagnosed with COVID-19, make sure you take Fapivir prescribed by your doctor to avoid any further complications. If not treated properly, it will spread quickly even if it is caught early on.


Despite its benefits, Fapivir does come with some cautions. As with most therapies, it has side effects, and you should be aware that some of these may interfere with your daily life. Fapivir is a relatively new drug, and it has not been extensively studied in people.

Fapivir should not be used in women who are pregnant or breastfeeding. It is best to consult your doctor before taking this medication if you are already pregnant or breastfeeding. Fapivir has not been extensively studied during pregnancy, and it is best to avoid using it until more information is published. It is important to note that the medication may cause serious birth defects or harm to an unborn child if used during pregnancy.

There have been no reports of Fapivir causing any side effects in people with HIV. As with all medications, it is important to tell your doctor if you are pregnant or breastfeeding before taking Fapivir.

Fapivir should not be used for more than a few weeks unless otherwise directed by your doctor. There is currently no information on the long-term side effects of taking Fapivir. Although it does not appear that the drug has problems with long-term use, this information is not available yet.

Bottom Line

Fapivir (favipiravir) is a medication used to treat influenza in people who are at least 8 years old, who have been hospitalized, and have a confirmed or suspected infection that is susceptible to this drug. It belongs to a class of drugs called neuraminidase inhibitors. It works by preventing the virus from attaching to cells in your lungs so it can’t spread through your body.

Fapivir (favipiravir) generally comes in tablets or as an injection given into one of your muscles by needle. The length of treatment depends on whether you’re treated for 3 days or 5 days. The treatment may be repeated if your symptoms continue.

Before taking this medication, tell your doctor if you have kidney disease, liver disease, or severe heart problems. You may not be able to take this medicine if you have these conditions, because it can cause harm.

You should not use Fapivir if you are allergic to favipiravir or a similar medicine called oseltamivir, or if you have:

  • A history of allergy to an antibiotic called gatifloxacin;
  • Kidney disease;
  • Liver disease;
  • Heart problems.


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