A Parson Terrier dog wearing a dog rain coat outside, constipated trying to poop, in need of a docusate sodium or Colace prescription.
(Photo Credit: Photographer, Basak Gurbuz Derman | Getty Images)

Docusate Sodium for Dogs: Uses, Dosage, & Side Effects

Docusate sodium is a laxative that can treat constipation in dogs. It’s the generic name of a medicine that’s also sold under the brand name Colace. The medication works by softening the canine’s stools, which makes them easier to pass.

It comes in a range of forms, including tablets, capsules, and liquids. While you don’t need a veterinarian’s prescription to purchase it, you must consult with your vet before adding it to your dog’s routine. Closely follow your vet’s instructions for the correct and safe dosage, as well as frequency.

Here’s what you should know about the uses, dosage, and side effects of docusate sodium for dogs.

Uses of docusate sodium for dogs

Veterinarians normally recommend docusate sodium to treat constipation in dogs. Vets may also prescribe the stool softener before certain surgical procedures or examinations.

The drug is a stimulant laxative, stimulating the bowels and softening the animal’s stools.

Dosage of docusate sodium for dogs

docusate sodium for dogs is given to constipated dogs like this one on the vet's exam table
(Photo Credit: Martinns | Getty Images)

The following is a guideline for typical use of the drug in dogs and must not replace your veterinarian’s advice for your individual pet.

Your vet will advise a dosage of docusate sodium or Colace for your dog that reflects the severity of the constipation, as well as the size and weight, of your pet. You must consult your vet before giving this drug to your dog.

Generally, veterinarians advise a dosage of 25 to 50 mg for small dogs, 50 to 100 mg for medium dogs, and 100 to 200 mg for large dogs. Dogs may take these doses once to twice per day, usually on an empty stomach.

It’s important to always follow your vet’s dosage and administration instructions exactly. This includes the length of time you should give the medicine to your dog.

Side effects of docusate sodium for dogs

Side effects of giving docusate sodium or Colace to a dog are said to be uncommon. That said, if you notice signs of an allergic reaction when your dog takes any kind of medicine — including swelling, hives, or difficulty breathing — make sure to contact your veterinarian immediately.

If you suspect your dog took too much of the medication and might be suffering from an overdose, then you must contact your vet or an emergency vet right away.

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