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Tailwise

Medicines

Is antidepressants toxic to cats and dogs?

Also sold as SSRIs, fluoxetine (Prozac), sertraline (Zoloft), venlafaxine (Effexor)

Cats

Toxic

Dogs

Toxic

Human antidepressants can cause serotonin syndrome in pets: agitation, tremors, a racing heart and high temperature. Cats seem to like the taste of venlafaxine capsules.

If your pet got into it

  1. Call your vet or a pet poison helpline now, even if your pet seems fine.
  2. Have the packet ready: the vet needs the name, strength and how much may be missing.
  3. Do not make your pet sick unless a vet tells you to.

Signs to watch for

  • Agitation or unusual sleepiness
  • Dilated pupils
  • Tremors
  • Racing heart
  • High temperature
  • Vomiting

How much is dangerous

Depends on the drug and the pet’s size; even one tablet can cause signs in a small pet.

Keeping it safe

  • Keep medicine organisers closed and high
  • Pick up dropped tablets straight away

The details

Some antidepressants are prescribed for pets too — fluoxetine is used for anxiety in dogs — but at doses and forms chosen for them. A pet that eats its owner’s supply receives a very different dose, and dropped tablets are easy for a dog to vacuum up.

Questions owners ask

Is antidepressants toxic to cats?

Yes — toxic.

Is antidepressants toxic to dogs?

Yes — toxic.

How much is dangerous?

Depends on the drug and the pet’s size; even one tablet can cause signs in a small pet.

What should I do if my pet got into it?

Call your vet or a pet poison helpline now, even if your pet seems fine. Have the packet ready: the vet needs the name, strength and how much may be missing. Do not make your pet sick unless a vet tells you to.

Sources

  1. ASPCA Animal Poison Control: people foods to avoid
  2. Pet Poison Helpline: poisons
  3. Merck Veterinary Manual: toxicology

Tailwise is for general information and is reviewed by veterinary professionals, but it is not a substitute for advice from your own vet, who knows your pet. How we check facts

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