💊 Med cost guide
How much does Vetsulin cost?
Vetsulin (porcine insulin zinc suspension (U-40)) is an insulin from Merck Animal Health, used for diabetes mellitus. Here's what it actually costs in the US — and how to pay less.
Typical monthly cost
$40–$240 / month
A small dog or cat may stretch a vial ~4-8 weeks (~$40-$80/month); a large dog on bigger twice-daily doses can use 2-3 vials/month. Add U-40 syringes (~$15-$30/box).
What you'll pay
| Typical price | Unit |
|---|---|
| $79.99–$100 | per 10 mL vial |
Chewy Rx lists the 10 mL vial at $79.99; vet-office retail typically higher.
Label dosing (for cost context, not a recommendation): Typically injected once or twice daily per the public label; dose is individualized by the vet, so vial burn-rate varies widely with patient size and dose.
Why it costs what it does
Vetsulin comes as: 10 mL U-40 injectable vial, owner-administered at home. A few things set the price:
- This one is already near the price floor for its category — generic competition keeps it cheap, and the bigger recurring line item is usually the monitoring visits, not the medication itself.
Cheaper alternatives to ask your vet about
Vetsulin is usually the cheaper vet-labeled insulin per vial vs ProZinc. For cats, a vet might discuss glargine biosimilars or the oral SGLT2 option (bexagliflozin/Bexacat) for newly diagnosed non-ketotic cats.
Never switch, split, or stop a prescription on your own — bring these options up at your next visit and let your vet make the call for your pet.
Before you fill
Price-check before you buy
The same prescription can vary 2–3× between the vet's shelf, online pet pharmacies, and retail. A written prescription is yours to fill anywhere — vets are required to provide one on request.
Disclosure: Meow Howl may earn a commission if you buy through links on this page, at no extra cost to you. Commissions never influence our pricing research.
Help paying for Vetsulin
- Costco Member Prescription Program (CMPP) — Worth a price check on any expensive monthly med if you already hold a membership.
- The Pet Fund — The right fit for chronic-condition medication costs; wrong fit for emergencies.
Sources & price verification
- Chewy Rx — $79.99 per 10 mL vial (accessed 2026-06-11)
- GoodRx — coupon pricing availability (accessed 2026-06-11)
How we verify these prices
Prices aggregated 2026-06-11 from public retailer listings (Chewy Rx, Petco, Heartland Vet Supply, EntirelyPets Rx, BudgetPetCare, PetBucket), GoodRx coupon pages, manufacturer pages, and 2026 vet-cost guides. Vet-administered injectables (Librela, Solensia, Cytopoint, Adequan loading) use published clinic-price surveys because the drug is not sold direct to consumers. Ranges are medication-only unless noted; exam/administration fees are flagged separately. Prices move — re-verify before publishing figures on a page, and show the per-item verified date.
Last verified: June 11, 2026 · Region: US · Currency: USD
