From the Pet Poison Helpline:
Never administer anything with your new first aid kit  without calling us or a veterinary poison hotline first.  This is especially important regarding anything with your pet’s eyes or anything it has ingested.
Another important thing to keep in mind is home remedies. When it comes to our pets and poisons, we don’t want to chance endangering our pet’s lives with some made up, Internet-discovered, erroneous home remedies! We hear it all – owners who use milk, peanut butter, vegetable oil, or salt…and these remedies are all WRONG! Please know that these products should NEVER be administered as they don’t work!
Please see our section on important numbers for help with a poisoning.
Contents of a first aid kit:

  • Hydrogen peroxide 3% (within the expiration date)
  • An oral dosing syringe or turkey baster (for administering hydrogen peroxide)
  • Teaspoon/tablespoon set (to calculate the appropriate amount of hydrogen peroxide to give)
  • Activated charcoal
  • Digital “fever” thermometer
  • Liquid hand dish washing detergent (i.e., Dawn, Palmolive)
  • Rubber gloves
  • Triple antibiotic ointment (with NO other combination ingredients – NOT for use in CATS!)
  • Vitamin E oil
  • Diphenhydramine tablets 25mg (with NO other combination ingredients)
  • Ophthalmic saline solution or artificial tears
  • Sweet electrolyte-containing beverage
  • Corn syrup
  • Vegetable oil
  • Bandage material- gauze and non-stick bandages and tape
  • Scissors
  • Soft muzzle
  • Sterile dressing
  • Diluted betadine solution
  • Leash
  • Tweezers
  • Splint material
  • Cotton balls