Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using Kayexalate and call your doctor at once if you have:
stomach pain, rectal pain;
severe constipation, severe stomach pain, bloating;
fever, chills, vomiting;
confusion, thinking problems, feeling irritable;
low potassium--leg cramps, constipation, irregular heartbeats, fluttering in your chest, increased thirst or urination, numbness or tingling, muscle weakness or limp feeling;
low calcium levels--muscle spasms or contractions, numbness or tingly feeling (around your mouth, or in your fingers and toes); or
signs of stomach bleeding--bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds.
Common side effects may include:
nausea, vomiting;
diarrhea, constipation; or
loss of appetite.
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.
 Kayexalate side effects (more detail)
