Can I Give My Dog generic syrup?

Ask your vet first
Lactulose is used in dogs, but dosing decisions belong to your veterinarian. Dose is titrated to stool quality by the vet. Reference card only.
Source: Merck Veterinary Manual
Get the exact range for your dog's weight

Skip it or ask a vet first if

self-directed use

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.