Diltiazem

Why has my veterinarian prescribed this medicine?

Diltiazem is used to treat enlarged heart (hypertrophic cardiomyopathy) in cats. Diltiazem decreases the heart’s need for blood and oxygen and therefore reduces the amount of work the heart must do. It also helps the heart beat more regularly. 

How does this medicine work?

Diltiazem is a calcium channel-blocking agent, which acts by selectively inhibiting the influx of calcium ions into vascular smooth muscle cells and heart muscle cells.

How do I give this medication?

- Give this medication to your pet as directed by your veterinarian. 

- READ THE LABEL CAREFULLY.

- Try to give this medication at about the same time(s) each day.

- DO NOT give the pet more medicine than directed and DO NOT give the medicine more often than directed.

- Try not to miss giving any doses.

- DO NOT discontinue the medication without first checking with your veterinarian. Contact your veterinarian in advance if your pet needs a repeat prescription.

- Wash your handsafter handling the medicine.

What if I miss giving a dose?

Give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give the pet two doses at once.

How do I store this medicine?

Keep this medicine out of reach of children. Store this medicine in a cool, dry place below 25°C. Store away from heat and direct sunlight. Do not store this medicine in the bathroom, near the kitchen sink or in damp places.

Potential side effects

- Side effects include gut problems such as constipation and loss of appetite.

- Your veterinarian may need to check your cat's blood to monitor glucose levels and liver function.

- Tell your veterinarian if you think your cat may be pregnant.

- Other side effects may occur. If you notice anything unusual, contact your veterinarian .

Possible drug interactions

- Make sure to tell your veterinarian what other medication you are giving to your pet.

- Drugs may interact such that they can cause an increased or decreased effect or side effects. Care with concurrent use of medicines such as cimetidine, beta-adrenoceptor blocking drugs, cardiac glycosides, other calcium-channel blockers, anticonvulsants, immunosuppressants, and aminoglycosides.

- Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together.