Pseudoephedrine and Pets
Find out if Pseudoephedrine is toxic to dogs and cats.
Think your pet ate something toxic?
Call ASPCA Animal Poison Control Center: (888) 426-4435 or view emergency guide
Pseudoephedrine
Pseudoephedrine is a decongestant found in many over-the-counter cold, flu, and allergy medications. In pets, it acts as a potent stimulant and can be life-threatening even in small amounts.
Dogs may become hyperactive, restless, and tremorous after ingesting pseudoephedrine. More serious signs include seizures, rapid heart rate, high blood pressure, panting, elevated body temperature, weakness, and collapse. Cats are even more sensitive; a single tablet can cause severe agitation, tremors, seizures, hyperthermia, and cardiovascular collapse.
Because pets are smaller than people and many products are flavored or concentrated, even a “small” human dose can be dangerous. Store all cold and allergy medications in a secure cabinet, and never give a pet any human decongestant without veterinary guidance.
If your pet eats pseudoephedrine, seek veterinary or poison-control help immediately. Bring the medication package with you so the veterinarian can identify the exact dose and ingredients.
Is Pseudoephedrine Toxic to Dogs?
Pseudoephedrine is a potent stimulant in dogs and can cause hyperactivity, tremors, seizures, dangerous heart rhythm abnormalities, elevated blood pressure, and collapse. Even a single tablet or small amount of liquid can be life-threatening.
Is Pseudoephedrine Toxic to Cats?
Cats are extremely sensitive to pseudoephedrine. Small exposures can trigger severe agitation, tremors, seizures, hyperthermia, and cardiovascular collapse. Pseudoephedrine should be considered a medical emergency in cats.
Active Ingredients
- pseudoephedrine
Common Brand Names
- Sudafed
- Sudafed 12 Hour
- Sudafed 24 Hour
- Contac
- Mucinex D
- Claritin-D
- Allegra-D
- Zyrtec-D
- Triaminic
- Theraflu
- Alka-Seltzer Plus Cold
- Robitussin CF
- Tylenol Sinus
- Sinutab
- Advil Cold and Sinus
- Aleve Cold and Sinus
- Drixoral
- Entex
- Histafed
- Novafed
- Silfedrine
- Suphedrin
- Unifed
- SudoGest
- Sine-Off
- Comtrex
- DayQuil
- NyQuil
- Aprodine
- Biofed
- Congestaid
- Efidac
- ElixSure
- Genaphed
- Maxifed
- Nasofed
- Nexafed
- PediaCare
- Pseudofed
- Rondec
- Rynatuss
- Semprex-D
- Sudodrin
- Sudogest
- Tussafed
- Zephrex
- Advil Allergy Sinus
- Aleve Sinus & Headache
- Benadryl Allergy Plus Sinus
- Contac 12 Hour
- Dimetapp Cold & Allergy
- Dristan Cold
- Naldecon
- Nucofed
- Panatuss
- Poly-Vent
- Respaire
- Rhinoflex
- Robitussin Cold CF
- R-Tannamine
- Su-Tuss
- Tanafed
- Tussionex
- Vicks 44D
- Vicks DayQuil
- Vicks NyQuil
- Vicks Sinex
- Wal-Phed
- Wal-Fex
- Wal-Zyr
- Wal-Itin D
- CVS Nasal Decongestant
- Equate Nasal Decongestant
- GoodSense Nasal Decongestant
- Leader Sinus
- Perrigo Cold
- Rugby Pseudoephedrine
- Sunmark Nasal Decongestant
- TopCare Nasal Decongestant
- Up and Up Nasal Decongestant
- Western Family Nasal Decongestant
Symptoms to Watch For
- hyperactivity
- restlessness
- agitation
- tremors
- seizures
- rapid heart rate
- elevated blood pressure
- panting
- vomiting
- hyperthermia
- weakness or collapse
- dilated pupils
What If My Pet Was Exposed to Pseudoephedrine?
Contact your veterinarian or a pet poison control hotline immediately. Do not induce vomiting unless instructed by a professional. Bring the medication packaging or bottle with you to the clinic. If instructed, go to an emergency veterinary clinic right away.
Sources
Vet's Note
PetPilot provides general information for educational purposes. While we reference authoritative veterinary organizations, this page has not been individually reviewed by a veterinarian for your specific pet. Individual animals may react differently based on age, weight, breed, health conditions, and amount consumed. Always consult your veterinarian or a poison control center for personalized advice, especially if your pet is ill, injured, pregnant, nursing, or on medication.