When you think of a dog's diet, you probably don't think of Rubbermaid Blue Ice packs. And for good reason: your pal shouldn't be eating them. Although, if he does, they're generally nontoxic.
Blue Ice packs owe their icelike qualities to propylene glycol. Propylene glycol in pure form is typically toxic, but according to the Blue Ice material safety data sheet, the level of glycol present in Blue Ice is not toxic. While the MSDS concerns mostly people, your pup will likely not suffer any ill effects if he eats some of the blue liquid inside. In fact, propylene glycol is sometimes added to dog food, often around 6 percent to 12 percent in semi-moist foods, according to "Nutrient Requirements of Dogs and Cats."
If your pal gets a hold of a Blue Ice pack, take it away from him, phone your vet and keep an eye on the rascal. Although the liquid is unlikely to cause problems, it's best to talk to his doc when he gets into anything that has the off chance of making him sick. If he vomits, appears weak, has seizures, stumbles or experiences any other serious symptoms, make a beeline to your vet.