Diltiazem (Cardizem®, Dilacor®)
Veterinary & Aquatic Services Department, Drs. Foster & Smith

Diltiazem is in a class of drugs called calcium channel blockers. It helps the heart to work more efficiently, and is used in the treatment of various heart conditions, including hypertrophic cardiomyopathy, hypertension (high blood pressure), and certain rhythm abnormalities. A slow heart rate is the most common side effect in dogs. Vomiting is the most common side effect in cats. Contact your veterinarian if your pet experiences these effects or weakness, fainting, collapse, irregular heart rates, rashes, coughing, inability to exercise, loss of appetite, difficult or rapid breathing, distended abdomen, or pale gums while being treated with diltiazem.

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Keep this and all other medications out of the reach of children and pets.


If you think your pet has been poisoned...

Contact your veterinarian or one of the Animal Poison Hotlines (listed below) if you think your pet may have accidentally received or been given an overdose of the medication.

**ASPCA Animal Poison Control Center - 24-hour service available throughout North America.
www.aspca.org/apcc

1-888-4ANI-HELP (1-888-426-4435). $65.00 per case, billed to caller's credit card.

Follow-up calls can be made for no additional charge by dialing 888-299-2973.

There is no charge when the call involves a product covered by the Animal Product Safety Service.

**Pet Poison Helpline - 24-hour service available throughout North America for pet owners and veterinary professionals who require assistance with treating a potentially poisoned pet.

1-800-213-6680 ($59.00 per incident). Staffed 24-hours a day.

Updated 6/20/17


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