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Active substance

Molnupiravir

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Nucleoside analogue antiviral. No registration in force in Georgia. Forms: capsule.

Dose and use

Doses

Each dose comes with its source. Check the label of the product you use.

Active substance Molnupiravir
Dose calculatorCalculates the active-substance amount; it is not a prescription.
PatientSpecies and weight will be filled in automatically in other calculators.
Selected dose
Dose Species Indication Route Frequency Source
10–15 mg/kg
off-label
 Cat Feline Infectious Peritonitis, effusive By mouth 2 times daily
JVIM 2024 (10 cats)
Scientific article
A study or review published in a scientific journal. Its findings apply to the animals and conditions it studied.
Open label clinical trial of orally administered molnupiravir as a first-line treatment for naturally occurring effusive feline infectious peritonitis
Journal of Veterinary Internal Medicine 38:3087-3094, 2024
15 mg/kg
off-label
 Cat Feline Infectious Peritonitis, non-effusive By mouth 2 times daily
JVIM 2023 (18 cats)
Scientific article
A study or review published in a scientific journal. Its findings apply to the animals and conditions it studied.
Molnupiravir treatment of 18 cats with feline infectious peritonitis: A case series
Journal of Veterinary Internal Medicine 37:1876-1880, 2023
15–20 mg/kg
off-label
 Cat Feline Infectious Peritonitis, ocular; Feline Infectious Peritonitis, neurological By mouth 2 times daily
JVIM 2023 (18 cats)
Scientific article
A study or review published in a scientific journal. Its findings apply to the animals and conditions it studied.
Molnupiravir treatment of 18 cats with feline infectious peritonitis: A case series
Journal of Veterinary Internal Medicine 37:1876-1880, 2023
Before use

Safety information

Known Contraindications

  • Critical (Dog)
    Dog: no treatment dose exists, and the cat dose must not be transferred. In the safety studies, bone marrow toxicity affecting all blood cell lines appeared at 17 mg/kg a day or more (no-effect level 6 mg/kg a day), with thrombocytopenia and haemorrhage; recovery was partial or full depending on the dose. The usual cat dose is 20-40 mg/kg a day.
    Source: EMA Sources: Lagevrio SmPC · FDA · EMA · PubMed
  • Warning
    Do not use in pregnant or lactating animals or animals intended for breeding. In the human label, embryo-fetal death and malformations (eye, kidney, axial skeleton) occurred in rats at 8 times the human exposure, and reduced fetal weight in rabbits; the active metabolite reached nursing pups.
    Sources: Lagevrio SmPC · FDA
  • Warning
    Young animals: in young rats it thickened growth cartilage and impaired its change into bone at 500 mg/kg a day or more (5-6 times the human exposure). No such effect was seen in dogs; the meaning for kittens is not known.
    Source: EMA Sources: Lagevrio SmPC · FDA · EMA
  • Warning
    Handling: wear gloves; pregnant people should not handle it. The human label says not to open the capsule; cat doses need the powder divided or compounded (off-label). Bacterial mutation tests were positive and one animal test equivocal, while the other animal tests were negative; the human label's low-risk statement refers to a 5-day course, and cat courses run 84 days.
    Sources: Lagevrio SmPC · FDA
  • Warning (Cat)
    Cat (off-label): raised liver enzymes (ALT) and gastrointestinal signs are the most reported. Neutropenia and occasional anaemia occur at higher doses, with severe leukopenia reported above 23 mg/kg; folded ears and hair or whisker loss are also reported. Guidelines advise caution above 15 mg/kg every 12 hours and keep it second-line to GS-441524.
Latin name
Molnupiravir
Georgian name
მოლნუპირავირი
Authorisation status
Human medicine, cascade use
No veterinary authorisation was found in any register checked. Veterinary use is off-label, under the prescribing cascade.
Registered in Georgia
0 of 2 forms
Products
Lagevrio, Molnupiravir Alvils
Controlled in Georgia
Unknown
All forms and registration2

Registration in Georgia and abroad: the register, number, validity and source are behind (i).

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This reference is still growing. Missing a product? Let us know. · Report an error or request an addition · Updated: 30 Oct 2026

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

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