Antihistamines (Benadryl)

Dangerous

Antihistamines can cause serious side effects in pets. Cats are especially sensitive.

Medications🐶 Toxic to Dogs🐱 Toxic to Cats

Symptoms

Drowsiness, lethargy, vomiting, rapid heart rate, agitation

What To Do

Contact vet. Never medicate without professional guidance.

medicationantihistaminesedativedanger

Clinical Sources

https://www.fda.gov/animal-veterinary https://www.petpoisonhelpline.com/poisons/

Also known as: benadryl, diphenhydramine, claritin, zyrtec

More in Medications

Ibuprofen (Advil, Motrin)

Dangerous

Ibuprofen is highly toxic to pets. Even one pill can cause serious kidney damage or stomach ulcers.

Acetaminophen (Tylenol)

Dangerous

Extremely toxic to cats (one tablet can be fatal). Causes liver damage and red blood cell damage.

Aspirin

Dangerous

Stomach ulcers and kidney damage. Cats especially sensitive.

Antidepressants (SSRIs)

Dangerous

Can cause serotonin syndrome. Even one pill is serious.

Vitamin D Supplements

Dangerous

Overdose causes dangerous calcium levels. Kidney failure.

Iron Supplements

Dangerous

Iron toxicity causing liver damage and metabolic acidosis.

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Disclaimer: This information is for educational purposes only and is not a substitute for professional veterinary advice. If you suspect your pet has ingested something toxic, contact your veterinarian or the ASPCA Animal Poison Control Center (888-426-4435) immediately.