Get emergency medical help if you have signs of an allergic reaction: hives; severe stomach pain; difficulty 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;
sudden weakness or ill feeling, fever, chills, sore throat, painful mouth sores, cough, trouble breathing;
little or no urinating; or
high potassium--nausea, slow or unusual heart rate, weakness, loss of movement.
Common side effects may include:
cough, runny or stuffy nose;
headache, dizziness, tired feeling;
increased urination;
diarrhea;
muscle pain; or
mild skin itching or rash.
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.
 Univasc side effects (more detail)
