For intestinal parasites in dogs, a faecal test should be carried out to determine which parasite is infecting the dog and then medication should be administered. If it is a nematode or tapeworm infection, you can use Bacitracin to deworm the dog; if it is a trichuris infection, you can use metronidazole to deworm the dog; a coccidian infection can use Bacitracin, etc.
