What Is Felodipine?
Felodipine is a prescription medicine used to treat high blood pressure. It belongs to a group of medicines called calcium channel blockers. By relaxing blood vessels, it helps lower blood pressure.
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What Is Felodipine Used For?
Felodipine treats hypertension, or high blood pressure. Lowering blood pressure reduces strain on the heart and blood vessels. A clinician can prescribe it alone or with another blood pressure medicine.
How Does Felodipine Work?
Felodipine limits the movement of calcium into the muscle cells of blood vessel walls. The vessels relax and widen, allowing blood to flow with less resistance. Blood pressure falls as a result.
How Is Felodipine Taken?
Felodipine is usually taken once daily as an extended-release tablet. Swallow the tablet whole rather than crushing or chewing it. Take it according to the prescribed schedule, even when high blood pressure causes no noticeable symptoms.
What Are the Side Effects and Precautions?
Swelling in the ankles or feet, headache, flushing, and dizziness can occur. Grapefruit juice and certain medicines can raise felodipine levels and increase its effects. Tell the prescribing clinician about all medicines and supplements you take.
Frequently Asked Questions About Felodipine
Can felodipine cause swollen ankles?
Yes. Ankle or foot swelling is a known side effect. Tell a clinician if the swelling is persistent or troublesome.
Can I crush a felodipine tablet?
No. Extended-release tablets should be swallowed whole so the medicine is released as intended.
Should I avoid grapefruit juice?
Yes. Grapefruit juice can increase felodipine levels and lead to stronger effects on blood pressure.
Does felodipine cure high blood pressure?
No. It helps control blood pressure while treatment continues. Do not stop taking it without discussing the change with a clinician.
References
Calcium channel blockers. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/high-blood-pressure/in-depth/calcium-channel-blockers/art-20047605. Date Accessed October 6, 2026.
Felodipine. MedlinePlus. https://www.medlineplus.gov/druginfo/meds/a692016.html. Date Accessed October 6, 2026.
Felodipine. PubMed. https://pubmed.ncbi.nlm.nih.gov/31194320/. Date Accessed October 6, 2026.
Felodipine (oral route) - Side effects & dosage. Mayo Clinic. https://www.mayoclinic.org/drugs-supplements/felodipine-oral-route/description/drg-20071701. Date Accessed October 6, 2026.
FELODIPINE tablet, film coated, extended release. DailyMed (National Library of Medicine). https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=be3bc927-1ba5-4cdd-9986-64ff29789d7e. Date Accessed October 6, 2026.