According to a news bulletin recently released by the ASPCA Animal Poison Control Center, permethrin insecticide and laundry detergent caused the greatest numbers of reported deaths.
Permithrins are the most common over-the-counter “flea and tick” treatment. Although relatively safe (if ineffective) when used on dogs as directed, it is a common and potentially fatal mistake to misapply the product on cats. This can cause the cat to die of convulsions. There is no antidote.
Liquid laundry detergent or the new individual detergent packs cause severe stomach upset in bot dogs and cats, followed by aspiration of the detergent into the lungs. The ensuing respiratory complications can be fatal.
Poison number 3 is topical Efundex, or 5-fluorouracil. Dogs who get a hold of the tube and ingest even a small amount of the cream develop GI upset, severe seizures and cardiac arrest.
Carbonate insecticides, ie Aldicarb (illegal in the US) and methomyl can cause acute collapse and patients referral to the emergency hospital are often dead on arrival.
Ivermectin- for heartworm prevention, is exceedingly safe when used as directed, but some people will attempt to save money by using the large animal formula on cats and dogs, with lethal consequences.
Hops, used for at home brewing, cause severe hyper-thermia and death is rapid after ingestion.
Bringing up the rest of the list : non-steroidal anti inflammatory, caffeine (is pills), rodenticides and the anti-oxidant alpha lipoic acid.
Please don’t let your pet become safe statistic. take care to keep all toxic substances away from inquisitive dogs and cats, and be especially careful to read the label and follow instructions when applying approved insecticides to your pet.