Diltiazem works on the heart by changing how calcium is used to treat heart rhythm problems in dogs and cats, and for some forms of feline heart disease. Approved by the FDA for use in humans, Diltiazem is prescribed by veterinarians for use with companion animals. For once a day dosage, this product is a generic for Cardizem CD and Cartia XT.
Diltiazem Hydrochloride Extended-Release Capsules are indicated for the treatment of hypertension and for the management of chronic stable angina.
Possible Side Effects
At usual doses, bradycardia is the most prominent side effect reported in dogs. In cats, vomiting is reportedly the most common side effect. Potentially, lethargy, GI distress (anorexia), hypotension, heart block and other rhythm disturbances, CNS effects, rashes, and elevations in liver function tests could occur in any species.
Drug & Food Interactions
Diltiazem should not be used in animals that have: had an allergic reaction to it; have low blood pressure; have certain types of heart rhythm problems (eg, AV block, slow heartrate). Diltiazem should be used with caution in animals that have: severe liver or kidney problems, as the drug is metabolized by the liver and eliminated from the body by the kidneys; severe heart failure. If your animal has any of these conditions, talk to your veterinarian about the potential risks versus benefits.
No drug is 100% safe in all patients, but your veterinarian will discuss with you any specific concerns about using this drug in your animal.
The FDA (U.S. Food & Drug Administration) has approved this drug for use in humans, but it is not officially approved for use in animals. The FDA allows veterinarians to prescribe products containing this drug in different species or for other conditions in certain situations. You and your veterinarian can discuss why this drug is the most appropriate choice.
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