What side effects may I notice from receiving Potassium Chloride?

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
-black, tarry stools
-breathing problems
-confusion
-fast, irregular heartbeat
-feeling faint or lightheaded, falls
-low blood pressure
-numbness or tingling in hands or feet
-unusually weak or tired
-weakness, heaviness of legs

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-diarrhea
-nausea, vomiting
-stomach pain

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