Get emergency medical help if you have any signs of an allergic reaction to Ranexa: 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;
headache with chest pain and severe dizziness, fast or pounding heartbeats; or
kidney problems - little or no urination; painful or difficult urination, swelling in your feet or ankles; feeling tired or short of breath.
Common Ranexa side effects may include:
nausea, constipation;
headache; or
dizziness.
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.
 Ranexa side effects (more detail)
