Dog Chewed a Disposable Hand Warmer? Call the Vet

If your dog chewed or swallowed a disposable hand warmer, call your vet or an animal poison service promptly. Some air-activated hand warmers contain iron powder. A swallowed pouch can also cause a blockage. Keep the outer package and say whether you know if the warmer had already been used. A cold pouch still needs to be reported.

Tell the clinic whether powder or packaging is missing

Look for the product name and ingredient list. Take a photo of the outer wrapper, both sides of the pouch if available, and any powder you found. Report the dog’s weight, when it happened, whether the warmer was unused or had already been heated, and how many pouches may be missing. If all you have is a torn wrapper, say so. Do not assume that powder on the floor accounts for everything that was inside.

Pet Poison Helpline’s hand warmer entry lists iron as the main concern for common disposable products. ASPCA Poison Control’s hand warmer guidance also describes risks from unused packs and from swallowing a pouch whole. Reusable devices can have different contents. Read the exact label instead of using a product photo from a shopping site.

Follow the clinic’s instructions instead of trying a remedy

Do not induce vomiting or offer food to bind the powder unless instructed by the treating team. Tell the clinic right away if there is vomiting, bloody stool, unusual weakness or collapse. If the animal is severely ill, go to emergency care and have someone call ahead when possible. For a small mystery packet that actually came from a food bag, our freshness packet guide covers a separate set of label clues.

Once the dog is being cared for, check coat pockets, gear bags and waste bins for the other pouches. Used and unopened hand warmers should both be stored or discarded where the dog can't reach them.

Written by PARTNER Editorial Team for general education. Contact your veterinary team for advice about your pet’s individual health and feeding needs.