Get emergency medical help if you have signs of an allergic reaction to Uroxatral: 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;
new or worsening chest pain;
upper stomach pain, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes); or
penis erection that is painful or lasts 4 hours or longer.
Common Uroxatral side effects may include:
dizziness;
headache; or
feeling tired.
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.
 Uroxatral side effects (more detail)
