Urinary & kidney Dogs

Incurin for dogs

Treats urinary incontinence in spayed female dogs. [1]

Last reviewed: October 2026 · 2 sources · see sources

Quick answerIncurin (estriol) is a prescription medicine for dogs. A natural estrogen that helps the urethra muscle stay closed. The most common side effects: uncommon at the lowest effective dose: low appetite, vomiting, more thirst or a swollen vulva.

Key facts

Generic nameEstriol
Common brand namesIncurin
Used inDogs
TypeUrinary & kidney
Prescription?Prescription
Typical US priceNot listed (no reliable public source)

What it's used for

Treats urinary incontinence in spayed female dogs. [1]

How it works

A natural estrogen that helps the urethra muscle stay closed. [1]

Side effects and cautions

Common side effects: Uncommon at the lowest effective dose: low appetite, vomiting, more thirst or a swollen vulva. [1]

Use with care: Not for pregnant dogs or with other estrogen drugs. [1]

Call your vet right away if your pet has trouble breathing, facial swelling, hives, collapse, or any side effect that is severe or getting worse.

About dosingDosing is your vet's call. We don't list doses because the right amount depends on your pet's weight, age, health and other medicines. Don't change a dose or stop a medicine without asking your vet, and never give a pet medicine meant for people unless your vet tells you to [2].

What it costs

We don't list a price for this one because we couldn't find a reliable public source. Ask your vet or pharmacy for a quote; prices depend on your pet's size, the dose and where you fill it.

Incurin FAQ

What is Incurin used for in dogs?

Treats urinary incontinence in spayed female dogs.

What are the side effects of Incurin?

Uncommon at the lowest effective dose: low appetite, vomiting, more thirst or a swollen vulva.

Does Incurin need a prescription?

Yes. It needs a prescription from a veterinarian.

How much Incurin should I give my pet?

Only your veterinarian can tell you. The right dose depends on your pet's weight, health and other medicines, so we don't list doses. Never give a pet a medicine prescribed for a person or another animal without asking your vet.

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This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.

Sources (2) — tap to show
  1. VCA Animal Hospitals – Estriol (veterinary drug handout)
  2. FDA – Frequently asked questions about animal drugs