Skip to main content

Human Medicines That Are Dangerous to Pets

Never give a human medicine to your pet without your vet's advice. This list gives no doses on purpose. If your pet swallowed any of these, call your vet or Pet Poison Helpline 1-855-764-7661 now.

  • Ibuprofen (Advil, Motrin)

    Dangerous to dogs and cats

    Stomach ulcers and kidney failure, even at small doses.

  • Naproxen (Aleve)

    Dangerous to dogs and cats

    Long-acting; causes ulcers and kidney damage.

  • Acetaminophen (Tylenol)

    Deadly to cats; dangerous to dogs

    Destroys red blood cells in cats; liver damage in dogs.

  • Aspirin (ASA)

    Dangerous, especially to cats

    Stomach bleeding; cats can't clear it.

  • Decongestants (pseudoephedrine, Sudafed, phenylephrine)

    Dangerous to dogs and cats

    Racing heart, tremors, seizures.

  • ADHD stimulants (Adderall, Ritalin, Vyvanse)

    Dangerous to dogs and cats

    Agitation, high temperature, seizures.

  • Antidepressants (SSRIs (Prozac, Zoloft), Effexor)

    Dangerous to dogs and cats

    Sedation or agitation, tremors; cats are attracted to Effexor.

  • Sleep aids (zolpidem (Ambien), benzodiazepines)

    Dangerous to dogs and cats

    Severe agitation or sedation.

  • Heart & blood pressure pills (beta-blockers, calcium channel blockers)

    Dangerous to dogs and cats

    Dangerously low heart rate and blood pressure.

  • Topical creams (5-FU, calcipotriene (psoriasis), hormone creams)

    Dangerous to dogs and cats

    Licked off skin or tubes; can be fatal.

  • Antihistamines with decongestant (anything labelled “-D”)

    Dangerous

    The decongestant part is the danger. Plain antihistamines only with vet dosing.

  • Cannabis / THC edibles (gummies, brownies)

    Dangerous to dogs and cats

    Wobbliness, urine leaking, slow heart; edibles may also contain chocolate or xylitol.

Sources: ASPCA Animal Poison Control; Pet Poison Helpline.