Paperwork, including the dog's health record medications, local and national poison control numbers, regular veterinary clinic hours and telephone numbers and emergency clinic hours and telephone number

Aspirin WARNING:

When giving a dog aspirin always check the dogs stool. Look for black stools which can indicate occult bleeding, and then discontinue aspirin immediately (use a buffered aspirin instead). The coated aspirins are said to not be readily digestible by canines, and are often passed
through with little but the coating having been digested.

What to Put it All In?

You can use a diaper bag. The compartments are wide and shallow; there are small zippered compartments on the side for scissors, bandages, Q-tips, etc; and bottle compartments on either end for most commonly needed bottles. You can also use a tackle box that has lots of compartments .. would be sturdier than a diaper bag.

Note

Keep in mind to NOT wash out a wound that needs stitches with anything more harsh than distilled water. If you can't sew or staple, have a vet do the job. You'll make the job easier, and the healing faster for your vet and the hound if you don't burn the tissue that will be stitched over with alcohol or peroxide.