What side effects may I notice from receiving Colestid?

Side effects that you should report to your doctor or health care professional as soon as possible:
-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-bloody or black, tarry stools
-breathing problems
-severe stomach pain with nausea and vomiting
-unusual bleeding or bruising
-weight loss

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
-diarrhea
-dizziness
-headache
-indigestion
-nausea, vomiting
-stomach upset, belching, or bloating

This list may not describe all possible side effects for Colestid. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.