
Don't know of a none oral, but the 4 seasons natural wormer is easy to administer it is liquid and comes with a syringe type top - I think it tastes 'evil' because as soon as my dogs see the bottle they run away from me :) but it is effective,
If your friends dog is an older dog I would definitley say to use this as it is far more gentle than the wormers from the vets - and it does work. I have a 5 year old and a 4 year old and they have always been worm free!