What side effects may I notice from receiving Lomotil?

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
-bloated, swollen feeling
-breathing problems
-changes in vision
-fast, irregular heartbeat
-stomach pain
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-headache
-loss of appetite
-mood changes
-nausea, vomiting
-numbness or tingling in the hands and feet

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