Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
a light-headed feeling, like you might pass out;
chest pain;
feeling short of breath; or
swelling or rapid weight gain.
Felodipine can cause mild gum swelling. Pay special attention to your dental hygiene while taking  felodipine. Brush and floss your teeth regularly.
Common side effects may include:
swelling in your arms, hands, legs, or feet;
headache; or
flushing (sudden warmth, redness, or tingly feeling).
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Felodipine side effects (more detail)
