[Ellie May]

I'm not sure that there is a difference.
Name brand isn't necessary unless you want to.
Store brand acid reducer wuth famotidine as the active ingredient (10mg) is fine.
Yorkies usually get 1/4 pill depending on size.

Famotidine can interfere with certain drugs. If your pup is on anything other than the usually heartworm/flea stuff check with the vet.