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We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!
Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.
To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.
Terms & Conditions of Program
A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
Favipiravir is an antiviral medication originally developed for the treatment of influenza and later investigated for use against a broad range of RNA viruses, including SARS-CoV-2 (COVID-19), Ebola, Lassa fever, and others. It acts as a RNA-dependent RNA polymerase (RdRp) inhibitor, interfering with viral replication by causing lethal mutagenesis in viral RNA genomes. Favipiravir is primarily used in pandemic or emergency settings under special authorization or clinical protocols. While it has shown promise in vitro and in limited clinical studies, its efficacy and regulatory status vary significantly by country.
Faviparivir is primarily used for treatment of Influenza A and B viruses, and while it is also used to treat Ebola virus, Yellow fever, and Nipah virus these 3 treatments are still under trial. It is also currently being evaluated as a potential treatment for COVID-19 (coronavirus) but this usage also still has yet to be approved in the USA or elsewhere. Among other aspects, it is particularly highly touted for its absorption rate of nearly 98%.
| Fact Table | |
| Formula | C5H4FN3O2 |
| License | Japan PMDA (2014); emergency use in India, Russia, etc. |
| Bioavailability | ~94% (oral) |
| Legal status | Prescription only (where approved) |
| Chemical Name | 6-fluoro-3-hydroxy-2-pyrazinecarboxamide |
| Elimination half-life | 2 to 5 hours (dose-dependent) |
| Dosage (Strength) | 200 mg tablets; loading dose: 1600 mg BID (Day 1), then 600 mg BID (Days 2–5 or longer) |
| Pregnancy | Contraindicated – teratogenic in animal studies |
| Brands | Avigan, FabiFlu, Areplivir, Coronavir |
| Protein binding | ~54% |
| PubChem CID | 492405 |
| MedlinePlus | Not listed |
| ChEBI | CHEBI:134722 |
| ATC code | J05AX27 |
| DrugBank | DB12466 |
| KEGG | D09620 |
| Routes of administration | Oral |
Favipiravir is administered orally, and dosing regimens vary by indication and clinical protocol. A typical regimen for investigational COVID-19 use includes:
Loading dose: 1600 mg twice daily on Day 1
Maintenance dose: 600–800 mg twice daily for 7 to 14 days
Administration with food may improve gastrointestinal tolerability. Favipiravir should only be used under medical supervision, ideally in settings where hepatic function, uric acid levels, and pregnancy status can be closely monitored.
Each film-coated tablet typically contains:
Favipiravir 200 mg or higher (e.g., 400 mg, depending on manufacturer)
Inactive ingredients may include:
Microcrystalline cellulose, croscarmellose sodium, magnesium stearate, and other standard tablet excipients
Formulations and excipients may vary by manufacturer (e.g., Fujifilm Toyama, Glenmark, Avigan brand).
Favipiravir is contraindicated in:
Pregnant women or women of childbearing potential not using effective contraception, due to teratogenicity and embryotoxicity
Severe hepatic or renal impairment
Known hypersensitivity to favipiravir or any formulation components
Favipiravir carries a teratogenic risk, and both male and female patients must use effective contraception during treatment and for at least 7 days (women) or 90 days (men) after the last dose. Liver function and uric acid levels should be monitored, as favipiravir may cause hyperuricemia and hepatic enzyme elevations. Use with caution in patients with gout, liver disease, or renal dysfunction. Favipiravir is not approved by the U.S. FDA but has received emergency or conditional approval in several countries (e.g., Japan, India, Russia) during COVID-19 outbreaks.
Common and potential side effects include:
Elevated liver enzymes (ALT, AST)
Hyperuricemia
Gastrointestinal upset (nausea, vomiting, diarrhea)
Headache
Neutropenia (rare)
Teratogenicity (confirmed in animal studies)
Rare: psychiatric symptoms or hypersensitivity reactions
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If you have any questions at all, or would like to place an order, you are encouraged to contact us by toll-free
phone 1-888-904-8467 or email info@canadadrugsdirect.com.
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Canada Drugs Direct employs dedicated, professional licensed pharmacists to ensure that each and every order is reviewed before it is dispensed for the safety and health of our customers. At CanadaDrugsDirect.com, your health is our top priority.
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