Indications

Treatment of novel or re-emerging pandemic influenza virus infections (limited to cases in which other influenza antiviral drugs are ineffective or not sufficiently effective).

Composition

Pharmacology

Favipiravir is a new antiviral drug against influenza. It is metabolized into favipiravir ribosyl triphosphate (favipiravir RTP) by an intracellular enzyme, and favipiravir RTP selectively inhibits RNA polymerase (RNA-dependent RNA polymerase) of the influenza virus, preventing replication of the influenza virus. It is a drug with a mechanism of action different from that of the existing influenza antiviral drugs and effective against all types and sub-types of human influenza A, B, and C viruses in vitro, showing a wide range of anti-viral activity against various influenza virus strains including avian and swine viruses.

Dosage & Administration

The usual adult dosage is 1600 mg of Favipiravir administered orally twice daily on Day 1, followed by 600 mg orally twice daily from Day 2 to Day 5 or as directed by physicians. The total treatment duration should be 5 days.

Contraindications

Favipiravir is contraindicated for pregnant women and women who may possibly be pregnant.

Side Effects

Most common side effects are Diarrhea and increase of blood uric acid levels.

Pregnancy & Lactation

Favipiravir may cause delayed development or death of embryos during the early stage of pregnancy. Should not be given during pregnancy.

Precautions & Warnings

Favipiravir should not be given in pregnant women, requirement of the confirmation of non-pregnancy in women of childbearing potential before use, thorough contraception measures from the start of the treatment to 7 days after the end of the treatment. Caution should be taken for Hepatic and renal impaired patient or use Favipiravir as per the direction of registered Physician

Therapeutic Class

Anti-viral drugs

Storage Conditions

Keep below 30°C temperature, protected from light & moisture. Keep out of the reach of children.