Calcium Channel Blockers
Information for Patients
Calcium - channel blockers
There are a number of different types of calcium-channel blockers.
Examples include Felodipine, Amlodipine, Diltiazem
What do Calcium-channel blockers do?
They interfere in the way calcium is passed through smooth muscle cells.
Artery walls contain smooth muscle cells which contract and make the artery narrow in size.
Calcium-channel blockers cause these muscle cells to relax by reducing the amount of calcium that is allowed to enter the muscle cells. This in turn causes the artery to widen and therefore reduces the blood pressure.
Key Tip for You
Avoid grapefruit juice whilst on this medication
How do I take Calcium- channel blockers?
Always read the information leaflet that comes with your medication.
Calcium channel blockers are taken by mouth and can come in capsule or tablet form.
Take Calcium-channel blockers exactly as directed by your doctor or follow directions on the package, and always ask your doctor, nurse or pharmacist to explain any part you do not understand.
What happens if I miss a dose?
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and only take the next scheduled dose. Do not take a double dose unless directed by your doctor to do so.
What side effects can Calcium-channel blockers cause?
Please read the information leaflet supplied with your medication
Can I take other medication while taking Calcium-channel blockers?
Yes but always tell the pharmacist that you are taking calcium-channel blockers before you buy any medicines.