Is Antidepressants (SSRIs, SNRIs) Toxic to Dogs?

Human antidepressants (Prozac, Zoloft, Effexor, Cymbalta) are among the most common pet poisonings. They can cause serotonin syndrome — a potentially fatal overstimulation of the nervous system.

Quick Answer

Yes, antidepressants (ssris, snris) is toxic to dogs. Dangerous — serotonin syndrome risk. Human antidepressants (Prozac, Zoloft, Effexor, Cymbalta) are among the most common pet poisonings. They can cause serotonin syndrome — a potentially fatal overstimulation of the nervous system. Watch for symptoms like agitation and restlessness and vomiting and diarrhea.

Emergency

If your dog was exposed, contact your vet or ASPCA Poison Control (888) 426-4435 immediately.

Symptoms to Watch For

Agitation and restlessness
Vomiting and diarrhea
Tremors and seizures
Elevated heart rate and blood pressure
Hyperthermia (dangerously high temperature)

Timeline

Symptoms can appear within 30 minutes to a few hours.

Treatment

Contact vet or poison control immediately
Induced vomiting if very recent
Cyproheptadine (serotonin antagonist)
IV fluids and temperature management
Muscle relaxants and anti-seizure meds

Prevention

Keep all medications in closed containers
Don't leave pills on countertops
Weekly pill organizers are a common source of pet poisoning
Effexor capsules are especially attractive to cats

Other Toxins Dangerous to Dogs

🐱 Cats version →🐰 Rabbits version →🐦 Birds version →🐹 Hamsters version →

Frequently Asked Questions

Is antidepressants (ssris, snris) toxic to dogs?▼

Dangerous — serotonin syndrome risk. Human antidepressants (Prozac, Zoloft, Effexor, Cymbalta) are among the most common pet poisonings. They can cause serotonin syndrome — a potentially fatal overstimulation of the nervous system.

What happens if my dog is exposed to antidepressants (ssris, snris)?▼

Symptoms include: Agitation and restlessness; Vomiting and diarrhea; Tremors and seizures. Symptoms can appear within 30 minutes to a few hours.

What should I do if my dog ingested antidepressants (ssris, snris)?▼

Contact vet or poison control immediately. Induced vomiting if very recent. Cyproheptadine (serotonin antagonist).

How can I protect my dog from antidepressants (ssris, snris)?▼

Keep all medications in closed containers. Don't leave pills on countertops. Weekly pill organizers are a common source of pet poisoning. Effexor capsules are especially attractive to cats.