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Feliferon

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Feline interferon · Bioinvest STC Ltd

1 form: solution. In force in Georgia: 1 of 1 (veterinary register).

Forms and doses1 of 1 in force in Georgia

The dose from the product's label, by species and weight. Check the label of the pack you use.

Form Species Dose Frequency Georgia
400000 IU/ml injection, Solution · Cat Cat 0.5 ml
Use only for the displayed indication. Contraindicated with interferon hypersensitivity, severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction. Do not use within 10 days after vaccination and do not mix in the same syringe with another medicine. Discontinue and provide antihistamine and symptomatic therapy if an allergic reaction occurs.
 · twice, 48 hours apart, for prevention when infection threatens		 twice, 48 hours apart, for prevention when infection threatens Georgia Yes, veterinary
In force until 20 Sep 2029
Veterinary (National Food Agency)
In the register: ფელიფერონი
№ 000713
Verified on: 21 Oct 2026
400000 IU/ml injection, Solution · Cat Cat 0.5 ml
Use only for the displayed indication. Contraindicated with interferon hypersensitivity, severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction. Do not use within 10 days after vaccination and do not mix in the same syringe with another medicine. Discontinue and provide antihistamine and symptomatic therapy if an allergic reaction occurs.
 · once daily for 5-7 days for routine viral, bacterial or mixed infection treatment		 once daily for 5-7 days for routine viral, bacterial or mixed infection treatment Georgia Yes, veterinary
In force until 20 Sep 2029
Veterinary (National Food Agency)
In the register: ფელიფერონი
№ 000713
Verified on: 21 Oct 2026
400000 IU/ml injection, Solution · Cat Cat 1 ml
Use only for the displayed indication. Contraindicated with interferon hypersensitivity, severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction. Do not use within 10 days after vaccination and do not mix in the same syringe with another medicine. Discontinue and provide antihistamine and symptomatic therapy if an allergic reaction occurs.
 · once daily for 5-7 days for severe disease or mixed infection		 once daily for 5-7 days for severe disease or mixed infection Georgia Yes, veterinary
In force until 20 Sep 2029
Veterinary (National Food Agency)
In the register: ფელიფერონი
№ 000713
Verified on: 21 Oct 2026
400000 IU/ml injection, Solution · Cat Cat 1 ml
Use only for the displayed indication. Contraindicated with interferon hypersensitivity, severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction. Do not use within 10 days after vaccination and do not mix in the same syringe with another medicine. Discontinue and provide antihistamine and symptomatic therapy if an allergic reaction occurs.
 · once daily on days 1-7, then on days 9, 11 and 13, for confirmed FIV or FeLV		 once daily on days 1-7, then on days 9, 11 and 13, for confirmed FIV or FeLV Georgia Yes, veterinary
In force until 20 Sep 2029
Veterinary (National Food Agency)
In the register: ფელიფერონი
№ 000713
Verified on: 21 Oct 2026
Details: pack, label wording, sources, registration

Feliferon 400000 IU/ml injection, Solution

5 x 2.5 ml for cats
vetman assessment
vetman’s 10-point assessment brings together a product’s regulatory credibility, clinical efficacy, safety and practicality. Cost-effectiveness is assessed only when reliable data are available. It is informational and does not replace a veterinarian’s clinical judgment for an individual patient.
Cat
5.0/10
Weak evidence support
vetman assessment

Feliferon

400000 IU/ml injection, 5 x 2.5 ml for cats
Assessed clinical scopeCat · Labelled adjunctive prevention and treatment of infectious diseases in cats, including acute viral infections and symptomatic FIV/FeLV · Intramuscular
Care settingVeterinary-directed outpatient or inpatient care, according to disease severity
vetman score 5.0/10 Weak evidence support
Evidence confidence: Low Georgia: Yes, veterinary · № 000713 · Verified on 21 Oct 2026

The full labelled clinical scope has limited positive exact-product evidence, but the evidence is too small, heterogeneous and insufficiently independent for a confident routine recommendation across the broad claims.

Regulatory and scientific credibility4.5/10

The exact presentation and official instruction are identifiable, but a complete public regulatory dossier and major-jurisdiction authorisation were not verified.

Clinical efficacy4.5/10

Small exact-product studies report benefits across FHV-1, FCV, panleukopenia and symptomatic FIV/FeLV, but the evidence is heterogeneous, mostly sponsor-proximate and lacks robust independent replication; broad preventive and antibacterial adjunct claims remain especially uncertain.

Safety and tolerability5.5/10

The instruction defines important contraindications and allergy management, and small studies show no clear major toxicity signal, but uncommon, repeated-course and long-term harms are not well characterised independently.

Clinical practicality6.0/10

IM schedules are feasible under veterinary supervision, but repeated restraint, injections, visits and monitoring create a moderate burden that varies with the labelled regimen and disease severity.

Full-course cost-effectiveness-

Price was not assessed and is excluded from the overall score.

Important safety and use flags

  • Contraindicated in severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction.
  • Do not use within 10 days after vaccination; stop and treat if an allergic reaction occurs.
  • Do not mix with another medicine in the same syringe.
Assessment sources
  1. Bioinvest Feliferon2017
  2. Ruban et al. 20212021
  3. Feliferon panleukopenia study 20162016
  4. Feliferon FIV study 20172017
  5. Feliferon FIV follow-up 20222022
  6. Feliferon FeLV study 20172017
  7. de Mari et al. 20042004
  8. Bioinvest Feliferon trials2015
Assessed: 21 Oct 2026The overall score uses 25/25/25/15/10 weights. An unassessed price is excluded and the remaining weights are proportionally renormalised.
Composition / strength
Feline interferon400000 IU/ml
Formulation Type
Solution
Administration route
Intramuscular
Manufacturer
Bioinvest STC Ltd · Russia
Manufacturer (register)
Scientific Technological Center Bioinvest Ltd, Russia
Manufacturer and country as in the veterinary medicines register (National Food Agency), row 1202, 19 Oct 2026.
Source: NFA veterinary medicines register ↗
Registration
Georgia Yes, veterinary
In force until 20 Sep 2029
Veterinary (National Food Agency)
In the register: ფელიფერონი
№ 000713
Verified on: 21 Oct 2026
Controlled in Georgia
Unknown
DoseSpeciesWeightRouteFrequencySource
0.5 ml
Use only for the displayed indication. Contraindicated with interferon hypersensitivity, severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction. Do not use within 10 days after vaccination and do not mix in the same syringe with another medicine. Discontinue and provide antihistamine and symptomatic therapy if an allergic reaction occurs.
 Cat Any weight Intramuscular twice, 48 hours apart, for prevention when infection threatens
Bioinvest Feliferon
Manufacturer material
Information published by the maker or a seller, such as a datasheet or product page. A medicines regulator has not necessarily reviewed it.
Feliferon solution for injection - official manufacturer instruction
Official veterinary product instruction, 2017
0.5 ml
Use only for the displayed indication. Contraindicated with interferon hypersensitivity, severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction. Do not use within 10 days after vaccination and do not mix in the same syringe with another medicine. Discontinue and provide antihistamine and symptomatic therapy if an allergic reaction occurs.
 Cat Any weight Intramuscular once daily for 5-7 days for routine viral, bacterial or mixed infection treatment
Bioinvest Feliferon
Manufacturer material
Information published by the maker or a seller, such as a datasheet or product page. A medicines regulator has not necessarily reviewed it.
Feliferon solution for injection - official manufacturer instruction
Official veterinary product instruction, 2017
1 ml
Use only for the displayed indication. Contraindicated with interferon hypersensitivity, severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction. Do not use within 10 days after vaccination and do not mix in the same syringe with another medicine. Discontinue and provide antihistamine and symptomatic therapy if an allergic reaction occurs.
 Cat Any weight Intramuscular once daily for 5-7 days for severe disease or mixed infection
Bioinvest Feliferon
Manufacturer material
Information published by the maker or a seller, such as a datasheet or product page. A medicines regulator has not necessarily reviewed it.
Feliferon solution for injection - official manufacturer instruction
Official veterinary product instruction, 2017
1 ml
Use only for the displayed indication. Contraindicated with interferon hypersensitivity, severe allergic or autoimmune disease, marked haematopoietic disorder or CNS dysfunction. Do not use within 10 days after vaccination and do not mix in the same syringe with another medicine. Discontinue and provide antihistamine and symptomatic therapy if an allergic reaction occurs.
 Cat Any weight Intramuscular once daily on days 1-7, then on days 9, 11 and 13, for confirmed FIV or FeLV
Megavet Feliferon
Official product label (SPC)
Approved by a medicines regulator as part of the product's authorisation. It applies to that product as authorised there.
Feliferon - current Georgian authorised representative instruction
Current authorised representative product instruction, 2026

Professional reference for veterinary professionals. Not advertising and not a substitute for the product label/SPC.

For veterinary professionals only. It does not replace clinical judgement or the product label; check the dose in the official label (SPC). vetman is not liable for harm caused by using this information.

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This reference is still growing. Missing a product? Let us know. · Report an error or request an addition · Updated: 21 Oct 2026

All of this shows in vetman as you prescribe

The dose for the patient's weight, registration in Georgia and controlled status, right on the prescription.

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