Pet First Aid Kit Checklist for Dogs & Cats (USA 2026)

Build it before you need it

A pet first aid kit isn't meant to replace your veterinarian — it's meant to hold you together for the ten or twenty minutes it takes to reach one. The AVMA suggests keeping a dedicated kit at home and a smaller travel version in the car, since many family first-aid supplies work for pets too. You can assemble a solid kit for roughly USD 30–60, or buy a pre-made one and swap in your own pet's records. Store it somewhere everyone in the house knows, check it twice a year, and replace anything expired — a bottle of hydrogen peroxide loses its punch after a year or so of sitting open.

Pet first aid kit checklist

The two numbers to keep in the kit

ASPCA Animal Poison Control (888) 426-4435: Staffed by veterinary toxicologists around the clock, 365 days a year. There's a consultation fee — around USD 95 per case — and it comes with a case number your own vet can reference. The ASPCA also has a free app with a searchable list of common toxins.

Pet Poison Helpline (855) 764-7661: Also 24/7 and staffed by toxicology experts. The fee runs about USD 89 per incident and includes any follow-up calls for the same case. Either service is the right first call the moment you suspect your pet ate something it shouldn't — often faster than waiting for a callback from a busy clinic, and they'll tell you whether you even need to come in.

The hydrogen peroxide rule

This is the item people misuse most, so it's worth being blunt. Keep 3% hydrogen peroxide in the kit, but do not reach for it on your own. It's used to make a dog vomit after eating certain toxins — and only when a veterinarian or poison-control expert tells you to, at the dose they give you. Never use it on cats. And never induce vomiting at all if your pet swallowed something caustic (drain cleaner, batteries), a petroleum product, or if it's already groggy, seizing, or struggling to breathe — bringing that back up can burn the throat or get inhaled into the lungs. When in doubt, don't guess. Call one of the numbers above first.

When home care isn't enough — go now

• Trouble breathing, constant panting at rest, or open-mouth breathing in a cat — or pale, white, or bluish gums
• A bloated, hard belly with unproductive retching, especially in a big deep-chested dog — possible GDV (bloat), which is minutes-matter
• A seizure, a collapse, or any loss of consciousness
• Bleeding that won't stop after about 5 minutes of firm pressure
• Straining to urinate or unable to pass urine — an emergency in male cats especially
• A known toxin: xylitol, chocolate, grapes, lilies (cats), antifreeze, or human medication
• Hit by a car, a bad fall, a suspected broken bone, or a wound deep enough to see tissue
• Repeated vomiting or diarrhea, obvious severe pain, or a sudden dramatic change in how your pet is acting

First aid is a bridge, not a destination. If you see anything on this list, do the basics — apply pressure, keep them warm and still — and drive. Call the ER on the way so they're ready when you pull up. It's always better to make a trip that turns out fine than to talk yourself out of one that wasn't.

Keep it ready with PetCare AI

Store your vet, nearest 24-hour hospital, and both poison hotlines in PetCare AI so they're one tap away when your hands are shaking. Set a twice-a-year reminder to restock the kit and toss expired supplies, and keep your pet's meds, doses, and weight in the app so you — or an ER team — can pull them up instantly. You can also ask the AI vet assistant to walk you through what to do while you're en route. It doesn't replace the clinic, but it helps you act instead of freeze.