784 S. Central Ave, Oviedo, FL 32765
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Compounded in OviedoGS-441524 flavored oral suspension

Medication library / GS-441524

Infections and parasites

GS-441524

For petsLast updated 10/1/26
Available as
Flavored oral suspension
Flavors
TunaChickenBeefGrilled SalmonDuckBaconPeanut ButterMarshmallowCatnip
Start with a prescriptionVeterinarians: how to send it

Pick up in Oviedo or ship within Florida. Most compounds ready same day to 24 hours.

  • Made to your prescription. Prepared in the strength your veterinarian orders.
  • Custom dosage form. Flavored oral suspension.
  • Flavor options. Tuna, Chicken, Beef, Grilled Salmon, Duck and more.
  • Pharmacist access. Call and a person answers.
Made in our pharmacyPrescription required
What is GS-441524?

A nucleoside analog that stops the feline coronavirus that causes FIP from copying its genetic material.

Why is it compounded?

GS-441524 is not available as an FDA-approved animal drug, so it is prepared by compounding pharmacies from a veterinarian’s prescription.

Compounded medications are prepared from a valid prescription for an individual patient and are not FDA-approved. This page is for education and is not medical advice.

Getting your prescription filled is simple

  1. Send us the prescriptionYour veterinarian e-prescribes, faxes or calls it in to Pharmacy on the Park.
  2. A pharmacist reviews itWe verify it, confirm the price and timing, and call you.
  3. We compound it for youPick up in Oviedo or we ship within Florida.

What is GS-441524?

Antiviral used to treat feline infectious peritonitis (FIP) in cats, by veterinary prescription.

At Pharmacy on the Park, GS-441524 is compounded in our pharmacy from a prescription, in the strength and form your veterinarian orders.

Compounded medications are not FDA-approved. They are prepared for one patient from a valid prescription. Any use may be off-label, and your veterinarian decides whether it is right for your pet.

How does it work?

A nucleoside analog that stops the feline coronavirus that causes FIP from copying its genetic material.

What is it used for?

Antiviral used to treat feline infectious peritonitis (FIP) in cats, by veterinary prescription. Your veterinarian determines the use, dose and monitoring.

How is it used?

  • Flavored oral suspension. Flavored suspensions are shaken well and measured with the oral syringe we provide, then given by mouth.

Follow the directions on your label. The strength, amount and schedule are set by your veterinarian.

Side effects and safety

Commonly reported: Mild stomach upset and changes in liver values; dosing is weight-based and set by your veterinarian. Call your veterinarian or us about any reaction that concerns you.

Who should use caution?

Treatment must be directed by a veterinarian with weight-based dosing and regular checkups, usually for at least 12 weeks. Share your full medical history and medication list with your veterinarian.

How should it be stored?

Check your label: many flavored liquids are refrigerated. Shake well before each dose. Always follow the storage directions and beyond-use date on your label, and keep medications out of reach of children and pets.

Why is it compounded?

GS-441524 is not available as an FDA-approved animal drug, so it is prepared by compounding pharmacies from a veterinarian’s prescription.

Personalized compounding from a pharmacy that knows your name.

“The pharmacy world needs people who are fair, and I want to be as fair to as many people as possible.”

Ian Tasman, PharmD
Owner and pharmacist, Pharmacy on the Park

IT
Quality and testing

Held to a higher standard

  • AccreditedBy The Compliance Team.
  • USP <800> compliantSafe handling of hazardous drugs.
  • Meets USP <795>Nonsterile compounding standards.
  • Meets USP <797>Every sterile batch tested by Pharmetric Labs.
Our quality standards

Our formulations

GS-441524 is compounded to the strength your veterinarian orders. These are the forms we have prepared.

FormFlavorsNotes
Flavored oral suspensionTuna, Chicken, Beef, Grilled Salmon, Duck, Bacon, Peanut Butter, Marshmallow, CatnipFlavored suspensions are shaken well and measured with the oral syringe we provide, then given by mouth

Forms are listed for education only. A valid prescription is required, and your veterinarian chooses the form, strength and schedule. Compounded medications are not FDA-approved.

For veterinarians

How to e-prescribe GS-441524

Compounded preparations have no NDC, so they won’t appear in a standard drug search. Use your system’s compound or free-text entry.

  1. Find Pharmacy on the Park in your pharmacy directory

    Search by NCPDP or by name and ZIP. Save us as a favorite.

    NCPDP 5747239NPI 1720664709784 S Central Ave, Oviedo, FL 32765Phone 407-977-9779Fax 407-977-0079
  2. Choose the preparation
    GS-441524 flavored oral suspension
    Rx: GS-441524 ___ (flavored oral suspension) flavor: Tuna
Quantity: ___
Sig: ___
Refills: ___
Pharmacy: Pharmacy on the Park, 784 S Central Ave, Oviedo, FL 32765 · NCPDP 5747239 · Fax 407-977-0079
  3. Enter it as a compound

    Use compound, non-formulary or free-text entry and paste the details into the prescription body. Include strength, form, directions, quantity, species, weight and flavor if needed.

  4. Send it

    Transmit from your EHR, fax it to 407-977-0079, or call 407-977-9779 to speak with a pharmacist. We’ll call the owner when it’s received.

Put the formula in the prescription itself, not in “Notes to pharmacy.” Some systems don’t transmit that field.

Frequently asked questions

What is GS-441524?

A nucleoside analog that stops the feline coronavirus that causes FIP from copying its genetic material.

What is it used for?

Antiviral used to treat feline infectious peritonitis (FIP) in cats, by veterinary prescription.

What forms and flavors are available?

We have prepared it as flavored oral suspension. Flavors include Tuna, Chicken, Beef, Grilled Salmon, Duck, Bacon, Peanut Butter, Marshmallow, Catnip.

What are the common side effects?

Mild stomach upset and changes in liver values; dosing is weight-based and set by your veterinarian.

Who should use caution?

Treatment must be directed by a veterinarian with weight-based dosing and regular checkups, usually for at least 12 weeks.

Are compounded medications FDA-approved?

No. Compounded medications are prepared for an individual patient from a prescription and are not FDA-approved.

Do I need a prescription?

Yes. Your veterinarian sends the prescription to us and decides the strength and schedule.

Can you fill a prescription from my own veterinarian?

Yes. Ask them to e-prescribe to Pharmacy on the Park (NCPDP 5747239), fax 407-977-0079 or call 407-977-9779.

Do you ship?

Yes, within Florida. You can also pick up at 784 S. Central Ave in Oviedo.

What is compounding?

Preparing a medication for one patient from a prescription when a commercial product isn’t the right strength, form or flavor.

Pickup and shipping

OptionWhereTiming
Pickup784 S. Central Ave, OviedoMost compounds same day to 24 hours
ShippingWithin FloridaWe confirm timing when your prescription arrives

Questions? Call 407-977-9779. A person will answer.

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References

  1. DailyMed (U.S. National Library of Medicine): drug labels for GS-441524
  2. PubMed: published studies on GS-441524
  3. FDA: human drug compounding

General information about GS-441524 as an active ingredient, pending pharmacist review. Last updated 10/1/26. Pharmacy on the Park does not decide whether a medication is right for you; your veterinarian makes that call.

Call us. A person will answer.

Tell us what you need and we'll help you get it handled, whether it's a transfer, a compound or a question for your pharmacist.

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