PLEASE do not experiment with human medications! There are many medications that have dual use for animals and people, but your veterinarian needs to advise you of the appropriate dosage, etc.
Tylenol, Acetaminophen, is LETHAL to dogs. Please don't use it and please ensure that your pets cannot get to it. In addition, chocolate in the right quantity is LETHAL to dogs. Please ensure that it is also properly stored away from your dogs.
Best wishes and I hope your dog is well!