covihalt 400mg tablet - Favipiravir (400mg) medicine

covihalt 400mg tablet - Uses, Price, Side Effects & Substitutes

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๐Ÿญ Lupin Ltd ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Jun 27, 2026
โš ๏ธ Hepatotoxicity Risk ๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
Dr. SaathiMed Expert Panel | Jun 27, 2026

What is covihalt 400mg tablet used for?

Avigan (Favipiravir) is used to treat ANTI INFECTIVES. It contains Favipiravir (400mg), which Inhibits viral RNA-dependent RNA polymerase, preventing viral replication. Always consult your doctor before use. Take as prescribed.

  • Generic Name: Favipiravir
  • Manufacturer: Lupin Ltd
  • Form: Allopathy
  • Pregnancy Category: A
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? Over 80% of the antiretroviral drugs used globally to combat AIDS are supplied by Indian pharmaceutical companies.

๐Ÿ’Š covihalt 400mg tablet Uses & Benefits

Influenza A and B, COVID-19 (emergency use), Ebola (investigational)

Off-label uses: Ebola virus disease, Lassa fever, Other RNA viral infections

๐Ÿ“‹ Drug Information

Generic Name(s)Favipiravir
Brand NameAvigan
ManufacturerLupin Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action ClassRNA-dependent RNA polymerase inhibitor
Route of AdministrationOral
StorageStore at room temperature (20-25ยฐC), protect from moisture
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionRapidly absorbed after oral administration
DistributionWidely distributed in body tissues
Protein BindingLow (approximately 10-20%)
MetabolismHepatic, primarily via aldehyde oxidase and xanthine oxidase
Half-LifeApproximately 2-5.5 hours
ExcretionRenal (mainly as unchanged drug and metabolites)
BioavailabilityHigh (approximately 90%)
Onset of ActionWithin 1-2 hours
Peak Plasma Time1-2 hours
Duration of Action8-12 hours

How It Works

Inhibits viral RNA-dependent RNA polymerase, preventing viral replication

Mechanism Steps

1Favipiravir is converted to its active form, favipiravir ribofuranosyl-5'-triphosphate (Favipiravir-RTP), by host cellular enzymes.
2Favipiravir-RTP competes with purine nucleosides for incorporation into viral RNA.
3Incorporation of Favipiravir-RTP into the viral RNA chain causes lethal mutagenesis or chain termination.

๐Ÿ’ก How to Take covihalt 400mg tablet

Follow your doctor's prescription exactly.

โš ๏ธ Side Effects of covihalt 400mg tablet

โœ… Common Side Effects

  • Diarrhea
  • Nausea
  • Vomiting
  • Increased uric acid
  • Headache

๐Ÿšจ Serious Side Effects

  • Hepatotoxicity
  • Bone marrow suppression
  • Pancreatitis
  • QT prolongation

โš ๏ธ Rare Side Effects

  • Anaphylaxis
  • Stevens-Johnson syndrome
  • Acute kidney injury

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
Pyrazinamide Major Increased risk of hepatotoxicity
Repaglinide Major Increased repaglinide levels, risk of hypoglycemia
Theophylline Major Increased theophylline levels, risk of toxicity
Acetaminophen Moderate Possible increased hepatotoxicity
Caffeine Moderate Increased caffeine levels
Warfarin Moderate Increased INR, bleeding risk
Famotidine Minor Possible decreased favipiravir absorption
Omeprazole Minor Possible decreased favipiravir absorption

๐Ÿšจ Major Interactions

  • Pyrazinamide
  • Repaglinide
  • Theophylline

โšก Moderate Interactions

  • Acetaminophen
  • Caffeine
  • Warfarin

โ„น๏ธ Minor Interactions

  • Famotidine
  • Omeprazole

๐Ÿฝ๏ธ Food Interactions

High-fat meal may delay absorption

๐Ÿท Alcohol Interaction

Avoid alcohol; may increase hepatotoxicity risk

๐Ÿ›ก๏ธ Safety & Warnings

๐Ÿšซ Contraindications

Pregnancy, lactation, severe hepatic impairment, hypersensitivity

๐Ÿ“Š Monitoring Parameters

Liver function tests, renal function, uric acid levels, pregnancy test

๐Ÿคฑ Lactation Safety

Not recommended; excreted in breast milk

๐Ÿ’Š Overdose Management

Supportive care; no specific antidote; consider activated charcoal

โฐ Missed Dose

Take as soon as remembered; skip if near next dose; do not double dose

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

Dr. SaathiMed Expert Panel

MD, PhD - Pharmacology

Reviewed: Jun 27, 2026

๐Ÿ”— View Profile

๐Ÿ”„ Substitutes for covihalt 400mg tablet

View All

Alternative brands with exact same active ingredient (Favipiravir (400mg)):

Medical Note: Always consult your doctor before switching medications.

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