Can I Give My Dog generic 100% pumpkin?

No
Plain pumpkin, never pie filling (spices, sometimes xylitol).
Source: Veterinary Partner (VIN)
Already ingested? Pet Poison Helpline 855-764-7661

Skip it or ask a vet first if

pumpkin pie filling

Cats use a different amount

The published cat reference (1/2 - 1 tsp per meal) differs from the dog range. Never split the difference between species; check the cat page instead.

About Canned pumpkin (plain)

Canned pumpkin (plain) is a fiber source, used to regulate digestion in both constipation and mild diarrhea. You will see it sold as generic 100% pumpkin, and the label strength on the box is what matters for the math, not the brand. Reference data on this page reflects published veterinary sources, not a prescription for your dog.

What to have ready when you call the vet

Whether you are confirming a dose or reporting that your dog already got into something, the call goes faster with four facts ready: your dog's current weight, the exact product name and strength from the label, how much was given or eaten, and roughly when. With those, most clinics can answer in one call.

The safe habit

Confirm any medication decision with your veterinarian, who knows your dog's health history and other medications. VetDose shows published reference data, not prescriptions.

See also

Other fiber / GI questions for dogs