Get emergency medical help if you have signs of an allergic reaction to Alecensa: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
a very slow heart rate;
a light-headed feeling, like you might pass out;
unexplained muscle pain, tenderness, or weakness;
lung problems - sudden chest pain or discomfort, wheezing, dry cough or cough with mucus, feeling short of breath;
low red blood cells (anemia) - pale skin, unusual tiredness, feeling light-headed, cold hands and feet;
kidney problems - a change in your urine color, little or no urination, swelling in your feet or ankles; or
liver problems - stomach pain (upper right side), loss of appetite, easy bruising or bleeding, feeling tired, dark urine, jaundice (yellowing of the skin or eyes).
Your cancer treatments may be delayed or permanently discontinued if you have certain side effects.
Common Alecensa side effects may include:
anemia;
constipation;
swelling in your face, eyelids, hands, or lower legs;
tired feeling; or
muscle pain.
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.
 Alecensa side effects (more detail)
