Ethanol, found in alcoholic products and hand sanitizers like Purell, can be life threatening if ingested by pets. Toxicity risks include low blood sugar, decreased blood pressure, and dangerously low body temperature.

In addition to cats and dogs, birds are also indicated for this toxicity.

Signs and symptoms of toxicity: Signs of toxicity may include vomiting, diarrhea, decreased coordination, difficulty breathing, fatigue and tremors.

Toxic consumption: In dogs, 5.55 g/kg (2.5 g/lb) can be fatal. This is equivalent to 0.2 oz/kg (0.08 oz/lb). There is no established threshold for toxicity in cats. All incidents of exposure should be reported immediately.

Dogs: Elemental Iron Toxic Consumption
X-Small Yorkie, Chihuahua	Small Pug, Boston Terrier, Poodle	Medium Beagle, Scottish Terrier	Large Boxer, Cocker Spaniel	X-Large Retriever, German Shepherd	XX-Large Great Dane, St. Bernard
1 – 10 lbs. (0.45 – 4.6 kg)	11 – 25 lbs. (5 – 11.4 kg)	26 – 40 lbs. (11.8 – 18.2 kg)	41 – 70 lbs. (18.6 – 31.8 kg)	71 – 90 lbs. (32.3 – 40.9 kg)	91 – 110 lbs. (41.4 – 50 kg)
> 0.08 oz	> 0.9 oz	> 2.3 oz	> 3.6 oz	> 6.3 oz	> 8 oz

References:
Osweiler, G, et al. (2011). Blackwell’s five-minute veterinary consult clinical companion. Small Animal Toxicoloty. [Kindle version]. Retrieved from Amazon.com