Ibuprofen should never be given to dogs. Tylenol (acetominophen) and Aspirin can be given to dogs at an appropriate dose. The non-steroidal anti-inflammatories approved for dogs are safer than either of these options. Dogs that have kidney disease, liver disease, or bleeding disorders should not be given either of these medications. Never use Tylenol in cats.
The dog doses are as follows:
Tylenol: 10-15 milligrams per kilogram of body weight by mouth given 2-3 times a day.
Aspirin: 10-20 milligrams per kilogram of body weight by mouth given twice daily
Most common side effects are related to the gastrointestinal tract. If your dog starts vomiting, gets diarrhea, stops eating, or becomes lethargic after you start these medications stop immediately and see your veterinarian.
Giving milk and Benadryl should not be needed nor have any positive effect.
You shouldn't give it tylenol you can give him asprin .give him some milk to dilute the tylenol and some benadryle
You should call a vet and talk to them, I don't believe you are supposed to give them tylenol. You might have to take the pup in after all. Hope this helps.
You should do some research before trying it again.