As marijuana becomes more widely accepted in areas across the United States, it's important to store products that contain THC where cats can't get into them.
Mistakes still happen, however, and cats can be accidentally exposed to marijuana. If that happens, you may be wondering, is marijuana toxic to cats and does it have the same effect on cats as it does on people? If your cat ate marijuana, stay calm. Understand the effects of THC on cats, and learn how to help your cat if they're ever exposed to it.
Tetrahydrocannabinol (THC) is the main psychoactive compound in marijuana, and it is indeed toxic to cats, though the exact amount that's toxic isn't known. While marijuana intoxication in dogs is more common than in cats (as Acta Veterinaria Scandinavica notes, about 96% of marijuana toxicity cases are dogs) it can still happen, especially with edible THC products. It's also important to remember that THC concentrations tend to be higher in edible products and because they usually flavorful treats, your kitty may be tempted to eat multiple of them. These two factors significantly increase the risk for severe toxicity to occur, particularly when considering a cat's relatively small size because they don't have to consume much to be affected.
In most situations, cats can fully recover from marijuana toxicity without any lingering effects. However, cats who contract aspiration pneumonia, experience seizures or have existing heart problems may develop long-term complications from consuming marijuana.
Is marijuana toxic to cats? It is, and consuming THC products can affect your cat in numerous ways.
If your cat ate marijuana, the most common side effects are ataxia (or uncoordinated wobbly movements), extreme lethargy and slower heart rate than normal (the normal heart rate for a cat is 120-140 beats per minute). More severe intoxication can result in the following signs:
Call your veterinarian immediately if your cat ate marijuana, you suspect your cat ate marijuana or your cat is exhibiting the above signs. If your vet isn't available, call the Pet Poison Helpline. When it comes to marijuana intoxication, it's best to take action quickly as a vet can safely remove the drug from your cat's stomach before it's absorbed into the bloodstream. Furthermore, it can take days for marijuana to exit your cat's system, during which they may likely need veterinary support — high doses of THC products, in particular, can be lethal for some cats. Your vet can diagnose marijuana toxicity by examining your cat, running laboratory tests and learning more about your cat's situation from you.
Treatment for marijuana toxicity in cats is twofold:
With appropriate care, most cats recover fully. Based on your cat's exposure and reaction, your vet will be able to tell you what to expect in regard to short-term and long-term effects.
Now that you know the answer to the question, "Is marijuana toxic to cats?" the best way to protect your cat and any other pets from marijuana toxicity is to store THC products in a locked, elevated cabinet only you have access to. Put all products away when not in use or keep them in your direct line of sight, and you'll reduce your cat's chances of toxicity.
Dr. Sarah Wooten graduated from UC Davis School of Veterinary Medicine in 2002. A member of the American Society of Veterinary Journalists, Dr. Wooten divides her professional time between small animal practice in Greeley, Colorado, public speaking on associate issues, leadership, and client communication, and writing. She enjoys camping with her family, skiing, SCUBA, and participating in triathlons.
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